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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 2024-12-26 16:16
Tx date 2024-12-23
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
50 - Grant of options
$105,000
+75,000 vol
$1.40 each
195,000
Filed 2024-12-18 14:29
Tx date 2024-12-17
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
52 - Expiration of options
$-408,000
-30,000 vol
$13.60 each
120,000
Filed 2024-02-16 12:38
Tx date 2024-02-15
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
50 - Grant of options

+75,000 vol
150,000
Filed 2023-09-22 12:01
Tx date 2023-09-18
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
52 - Expiration of options
$-252,000
-30,000 vol
$8.40 each
75,000
Filed 2023-03-28 20:13
Tx date 2023-03-27
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
50 - Grant of options
$428,400
+45,000 vol
$9.52 each
105,000
Filed 2023-03-28 18:53
Tx date 2023-03-17
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
37 - Stock split or consolidation
$-2,268,000
-270,000 vol
$8.40 each
330,000
Filed 2023-03-28 18:51
Tx date 2023-03-17
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
37 - Stock split or consolidation
$-3,672,000
-270,000 vol
$13.60 each
60,000
Filed 2023-03-28 18:48
Tx date 2023-03-17
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
37 - Stock split or consolidation
$-226,800
-270,000 vol
$0.84 each
Filed 2023-03-28 18:04
Tx date 2023-03-17
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Common Shares
37 - Stock split or consolidation

-414,615 vol
46,068
Filed 2022-11-29 17:22
Tx date 2022-11-28
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Common Shares
51 - Exercise of options
$87,230
+161,538 vol
$0.54 each
460,683
Filed 2022-11-29 17:20
Tx date 2022-11-28
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
51 - Exercise of options
$-162,000
-300,000 vol
$0.54 each
600,000
Filed 2022-11-29 17:16
Tx date 2022-11-28
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Common Shares
51 - Exercise of options
$140,598
+299,145 vol
$0.47 each
299,145
Filed 2022-11-29 17:14
Tx date 2017-11-09
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Common Shares
00 - Opening Balance-Initial SEDI Report
Filed 2022-11-29 17:08
Tx date 2022-11-28
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
51 - Exercise of options
$-235,000
-500,000 vol
$0.47 each
900,000
Filed 2022-01-04 10:58
Tx date 2021-12-17
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
50 - Grant of options
$408,000
+300,000 vol
$1.36 each
1,400,000
Filed 2020-09-22 15:19
Tx date 2020-09-18
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
50 - Grant of options
$190,920
+300,000 vol
$0.64 each
1,100,000
Filed 2020-09-22 13:33
Tx date 2020-09-18
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
50 - Grant of options
$190,920
+300,000 vol
$0.64 each
Filed 2020-09-22 13:33
Tx date 2020-09-18
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
50 - Grant of options
$190,920
+300,000 vol
$0.64 each
1,100,000
Filed 2018-12-05
Tx date 2018-11-15
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
50 - Grant of options
$162,000
+300,000 vol
$0.54 each
800,000
Filed 2017-11-10
Tx date 2017-11-09
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
50 - Grant of options

+500,000 vol
500,000
Filed 2017-11-10
Tx date 2017-11-09
$NB
NioCorp Developments Ltd.
Guerrero Mahon, Nilsa
4 - Director of Issuer
Direct Ownership
Options
00 - Opening Balance-Initial SEDI Report