| 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 2024-11-01 17:03 Tx date 2024-11-01 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Holder: Bedrock Industries ManagementCo Inc. (Control or Direction)
                                
                             | Restricted Share Units22 - Acquisition or disposition pursuant to a take-over bid, merger or acquisition | -467,821 vol | 0 | |
| Filed 2024-11-01 17:02 Tx date 2024-11-01 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Restricted Share Units22 - Acquisition or disposition pursuant to a take-over bid, merger or acquisition | -566,291 vol | 0 | |
| Filed 2024-11-01 17:01 Tx date 2024-11-01 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares22 - Acquisition or disposition pursuant to a take-over bid, merger or acquisition | $-520,219,800 -8,670,330 vol $60.00 each | 0 | |
| Filed 2024-08-28 10:49 Tx date 2024-08-27 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Holder: Bedrock Industries ManagementCo Inc. (Control or Direction)
                                
                             | Restricted Share Units56 - Grant of rights | +218,569 vol | 467,821 | |
| Filed 2024-07-29 10:32 Tx date 2024-07-24 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Holder: Bedrock Industries ManagementCo Inc. (Control or Direction)
                                
                             | Restricted Share Units56 - Grant of rights | +249,252 vol | 249,252 | |
| Filed 2024-07-29 10:30 Tx date 2017-11-02 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Holder: Bedrock Industries ManagementCo Inc. (Control or Direction)
                                
                             | Restricted Share Units00 - Opening Balance-Initial SEDI Report | |||
| Filed 2024-03-28 11:22 Tx date 2023-11-28 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Restricted Share Units30 - Acquisition or disposition under a purchase/ownership plan | $1,795,840 +41,189 vol $43.60 each | 566,291 | |
| Filed 2024-03-28 11:21 Tx date 2023-08-24 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Restricted Share Units30 - Acquisition or disposition under a purchase/ownership plan | $218,182 +5,593 vol $39.01 each | 525,102 | |
| Filed 2024-03-28 11:20 Tx date 2023-05-23 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Restricted Share Units30 - Acquisition or disposition under a purchase/ownership plan | $216,112 +4,851 vol $44.55 each | 519,509 | |
| Filed 2024-03-28 11:20 Tx date 2023-03-09 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Restricted Share Units30 - Acquisition or disposition under a purchase/ownership plan | $214,629 +3,620 vol $59.29 each | 514,658 | |
| Filed 2023-03-08 19:39 Tx date 2023-03-03 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Restricted Share Units56 - Grant of rights | +511,038 vol | 511,038 | |
| Filed 2023-03-08 19:37 Tx date 2017-11-02 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Restricted Share Units00 - Opening Balance-Initial SEDI Report | |||
| Filed 2021-06-04 20:33 Tx date 2021-05-26 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares11 - Acquisition or disposition carried out privately | +6,382,125 vol | 8,670,330 | |
| Filed 2021-06-04 20:21 Tx date 2018-10-11 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares11 - Acquisition or disposition carried out privately | +1,097,047 vol | 2,288,204 | |
| Filed 2018-10-16 14:40 Tx date 2018-10-11 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Holder: AK Bedrock LLC (Indirect Ownership)
                                
                             | Common Shares11 - Acquisition or disposition carried out privately | +1,097,047 vol | ||
| Filed 2021-03-24 20:59 Tx date 2021-03-10 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares90 - Change in the nature of ownership | +1 vol | 1,191,158 | |
| Filed 2018-10-16 Tx date 2018-10-11 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares90 - Change in the nature of ownership | -1,255,286 vol | 0 | |
| Filed 2018-10-16 Tx date 2018-10-11 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares11 - Acquisition or disposition carried out privately | +1,197,157 vol | ||
| Filed 2018-10-16 Tx date 2018-10-11 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares11 - Acquisition or disposition carried out privately | +1,191,157 vol | 1,191,157 | |
| Filed 2018-10-16 Tx date 2018-10-11 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Holder: AK Bedrock LLC (Indirect Ownership)
                                
                             | Common Shares90 - Change in the nature of ownership | -1,156,109 vol | 0 | |
| Filed 2018-10-16 Tx date 2018-10-11 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Holder: AK Bedrock LLC (Indirect Ownership)
                                
                             | Common Shares11 - Acquisition or disposition carried out privately | +1,097,047 vol | 1,097,047 | |
| Filed 2018-09-24 Tx date 2017-09-17 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Holder: AK Bedrock LLC (Indirect Ownership)
                                
                             | Common Shares90 - Change in the nature of ownership | +1,156,109 vol | 1,156,109 | |
| Filed 2018-09-24 Tx date 2018-09-17 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares90 - Change in the nature of ownership | -1 vol | 0 | |
| Filed 2018-09-24 Tx date 2017-11-02 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Holder: AK Bedrock LLC (Indirect Ownership)
                                
                             | Common Shares00 - Opening Balance-Initial SEDI Report | |||
| Filed 2018-09-24 Tx date 2018-09-17 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares90 - Change in the nature of ownership | +1,255,286 vol | 1,255,286 | |
| Filed 2018-09-24 Tx date 2018-09-17 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares90 - Change in the nature of ownership | +1 vol | 1 | |
| Filed 2017-11-21 Tx date 2017-11-02 | $STLC Stelco Holdings Inc. | Kestenbaum, Alan 
                                4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder, 5 - Senior Officer of Issuer
                             
                                
                                
                                
                                    Direct Ownership
                                
                             | Common Shares00 - Opening Balance-Initial SEDI Report |