| Date | Issuer | Insider | Transaction | Amount | New Balance ⓘ 
                                    The balance of securities held by registered holder at the time of the transaction. Insiders may direct multiple registered holders and hold multiple security types.
                                 | |
|---|---|---|---|---|---|---|
| Filed 2018-03-01 Tx date 2018-01-01 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Units Restricted Share Units58 - Expiration of rights | -114,217 vol | 0 | |
| Filed 2018-03-01 Tx date 2018-01-01 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Options52 - Expiration of options | -71,149 vol | 61,111 | |
| Filed 2017-12-28 Tx date 2017-12-27 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -1,000 vol | 120,278 | |
| Filed 2017-11-21 Tx date 2017-11-07 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares57 - Exercise of rights | $68,131 +12,276 vol $5.55 each | 122,478 | |
| Filed 2017-11-21 Tx date 2017-11-07 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Units Restricted Share Units57 - Exercise of rights | $-112,803.75 -20,325 vol $5.55 each | 114,217 | |
| Filed 2017-11-10 Tx date 2017-11-09 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -1,200 vol | 109,002 | |
| Filed 2017-09-20 Tx date 2017-09-18 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -6,000 vol | 110,202 | |
| Filed 2017-09-07 Tx date 2017-09-07 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-84,250 -25,000 vol $3.37 each | 116,202 | |
| Filed 2017-08-31 Tx date 2017-08-30 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-40,572 -13,800 vol $2.94 each | 143,302 | |
| Filed 2017-08-31 Tx date 2017-08-30 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-99,913 -34,100 vol $2.93 each | 157,102 | |
| Filed 2017-08-31 Tx date 2017-08-30 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-40,572 -13,800 vol $2.94 each | ||
| Filed 2017-08-31 Tx date 2017-08-30 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-6,195 -2,100 vol $2.95 each | 141,202 | |
| Filed 2017-08-31 Tx date 2017-08-30 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-6,195 -2,100 vol $2.95 each | ||
| Filed 2017-08-08 Tx date 2017-08-04 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-59,150.52 -19,916 vol $2.97 each | 199,386 | |
| Filed 2017-08-08 Tx date 2017-08-04 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-298.50 -100 vol $2.98 each | 191,202 | |
| Filed 2017-08-08 Tx date 2017-08-04 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-24,090.32 -8,084 vol $2.98 each | 191,302 | |
| Filed 2017-08-08 Tx date 2017-08-04 | $BLDP Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-64,824 -21,900 vol $2.96 each | 219,302 | |
| Filed 2017-06-21 Tx date 2017-06-20 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -3,500 vol | 241,202 | |
| Filed 2017-06-15 Tx date 2017-06-15 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-601.00 -200 vol $3.00 each | 244,702 | |
| Filed 2017-06-15 Tx date 2017-06-15 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-2,100 -700 vol $3.00 each | 244,902 | |
| Filed 2017-06-15 Tx date 2017-06-15 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-40,066 -13,400 vol $2.99 each | 245,602 | |
| Filed 2017-06-15 Tx date 2017-06-15 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-106,386 -35,700 vol $2.98 each | 259,002 | |
| Filed 2017-06-09 Tx date 2017-05-17 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -7,000 vol | ||
| Filed 2017-06-09 Tx date 2017-05-17 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -3,500 vol | 348,202 | |
| Filed 2017-06-09 Tx date 2017-06-08 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-4,312.50 -1,500 vol $2.88 each | 294,702 | |
| Filed 2017-06-09 Tx date 2017-06-08 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-64,862 -22,600 vol $2.87 each | 296,202 | |
| Filed 2017-06-09 Tx date 2017-06-08 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-74,074 -25,900 vol $2.86 each | 318,802 | |
| Filed 2017-06-05 Tx date 2017-06-02 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -3,500 vol | 341,202 | |
| Filed 2017-05-22 Tx date 2017-05-17 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -7,000 vol | 344,702 | |
| Filed 2017-05-04 Tx date 2017-05-03 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-60,380.32 -21,112 vol $2.86 each | 355,590 | |
| Filed 2017-05-04 Tx date 2017-05-03 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-11,158.56 -3,888 vol $2.87 each | 351,702 | |
| Filed 2017-05-04 Tx date 2017-05-03 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-72,500 -25,000 vol $2.90 each | 376,702 | |
| Filed 2017-03-21 Tx date 2017-03-14 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-15,549.60 -7,440 vol $2.09 each | ||
| Filed 2017-03-21 Tx date 2017-03-14 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-30,076.80 -14,460 vol $2.08 each | ||
| Filed 2017-03-21 Tx date 2017-03-14 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-30,076.80 -14,460 vol $2.08 each | 437,242 | |
| Filed 2017-03-21 Tx date 2017-03-14 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-6,463.50 -3,100 vol $2.08 each | ||
| Filed 2017-03-21 Tx date 2017-03-14 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-6,463.50 -3,100 vol $2.08 each | 434,142 | |
| Filed 2017-03-21 Tx date 2017-03-14 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-15,549.60 -7,440 vol $2.09 each | 426,702 | |
| Filed 2017-03-21 Tx date 2017-03-20 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-57,250 -25,000 vol $2.29 each | 401,702 | |
| Filed 2017-03-14 Tx date 2017-03-14 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-15,549.60 -7,440 vol $2.09 each | 426,702 | |
| Filed 2017-03-14 Tx date 2017-03-14 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-6,463.50 -3,100 vol $2.08 each | 434,142 | |
| Filed 2017-03-14 Tx date 2017-03-14 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-30,076.80 -14,460 vol $2.08 each | 437,242 | |
| Filed 2017-03-13 Tx date 2016-03-23 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -1,800 vol | 517,790 | |
| Filed 2017-03-06 Tx date 2017-03-03 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Options46 - Compensation for services | $47,854 +23,927 vol $2.00 each | 132,260 | |
| Filed 2017-03-06 Tx date 2017-03-02 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Units Restricted Share Units46 - Compensation for services | $75,000 +37,500 vol $2.00 each | 134,542 | |
| Filed 2017-01-06 Tx date 2016-12-30 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -5,500 vol | 453,502 | |
| Filed 2017-01-06 Tx date 2016-12-28 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -2,000 vol | 459,002 | |
| Filed 2016-10-31 Tx date 2016-10-27 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares57 - Exercise of rights | $26,463 +12,662 vol $2.09 each | 461,002 | |
| Filed 2016-10-31 Tx date 2016-10-27 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Units Restricted Share Units57 - Exercise of rights | $-42,479.25 -20,325 vol $2.09 each | 97,042 | |
| Filed 2016-09-30 Tx date 2016-09-30 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-21,500 -10,000 vol $2.15 each | 448,340 | |
| Filed 2016-09-27 Tx date 2016-09-27 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-16,639.70 -7,700 vol $2.16 each | 460,640 | |
| Filed 2016-09-27 Tx date 2016-09-27 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-4,979.50 -2,300 vol $2.17 each | 458,340 | |
| Filed 2016-09-09 Tx date 2016-08-31 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | $-2,587.50 -1,250 vol $2.07 each | 468,340 | |
| Filed 2016-07-29 Tx date 2016-07-28 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-29,870 -14,500 vol $2.06 each | 472,290 | |
| Filed 2016-07-29 Tx date 2016-07-29 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-5,616 -2,700 vol $2.08 each | 469,590 | |
| Filed 2016-07-29 Tx date 2016-07-28 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-67,896 -32,800 vol $2.07 each | 486,790 | |
| Filed 2016-04-11 Tx date 2016-03-11 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-14,600 -10,000 vol $1.46 each | 527,507 | |
| Filed 2016-04-11 Tx date 2015-10-01 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Options50 - Grant of options | $92,250 +75,000 vol $1.23 each | 75,000 | |
| Filed 2016-04-11 Tx date 2016-03-18 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-8,641.44 -6,001 vol $1.44 each | 519,590 | |
| Filed 2016-04-11 Tx date 2016-03-17 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-2,759.04 -1,916 vol $1.44 each | 525,591 | |
| Filed 2016-04-11 Tx date 2016-03-11 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares10 - Acquisition or disposition in the public market | $-7,250 -5,000 vol $1.45 each | 537,507 | |
| Filed 2016-02-29 Tx date 2016-02-26 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Options46 - Compensation for services | $44,332 +33,333 vol $1.33 each | 33,333 | |
| Filed 2016-02-29 Tx date 2016-02-25 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Units Restricted Share Units46 - Compensation for services | $75,000 +56,391 vol $1.33 each | 117,367 | |
| Filed 2016-02-29 Tx date 2015-10-01 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Options00 - Opening Balance-Initial SEDI Report | |||
| Filed 2015-12-18 Tx date 2015-12-15 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -8,200 vol | 546,757 | |
| Filed 2015-12-18 Tx date 2015-12-16 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares47 - Acquisition or disposition by gift | -4,250 vol | 542,507 | |
| Filed 2015-12-18 Tx date 2015-10-01 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares00 - Opening Balance-Initial SEDI Report | 554,957 | ||
| Filed 2015-10-19 Tx date 2015-10-01 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Units Restricted Share Units56 - Grant of rights | $75,000 +60,976 vol $1.23 each | 60,976 | |
| Filed 2015-10-19 Tx date 2015-10-01 | $BLD Ballard Power Systems Inc. | Osenar, Paul 
                                7 - Director or Senior Officer of Insider or Subsidiary of Issuer (other than in 4,5,6)
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Units Restricted Share Units00 - Opening Balance-Initial SEDI Report |