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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 2026-03-26 14:25
Tx date 2025-10-22 		$NDM
Northern Dynasty Minerals Ltd. 		Thiessen, Ronald William
4 - Director of Issuer
Direct Ownership
Common Shares
15 - Acquisition or disposition under a prospectus 		$49,839
+8,790 vol
$5.67 each
Filed 2025-10-22 18:08
Tx date 2025-10-22 		$NDM
Northern Dynasty Minerals Ltd. 		Thiessen, Ronald William
4 - Director of Issuer
Direct Ownership
Common Shares
15 - Acquisition or disposition under a prospectus 		$49,839
+8,790 vol
$5.67 each
Filed 2026-03-20 14:22
Tx date 2026-03-20 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$1,433,585
+1,166,845 vol
$1.23 each 		44,542,614
Filed 2026-03-20 14:21
Tx date 2026-03-19 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$4,072,614
+3,301,941 vol
$1.23 each 		43,375,769
Filed 2026-03-20 14:21
Tx date 2026-03-18 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$105,427
+83,719 vol
$1.26 each 		40,073,828
Filed 2026-03-20 14:20
Tx date 2026-03-18 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$1,987,410
+1,559,732 vol
$1.27 each 		39,990,109
Filed 2026-03-20 14:19
Tx date 2026-03-17 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$230,915
+179,004 vol
$1.29 each 		38,430,377
Filed 2026-03-17 12:29
Tx date 2026-03-12 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$43,086
+33,400 vol
$1.29 each 		38,251,373
Filed 2026-03-10 13:03
Tx date 2026-03-09 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$492,823
+387,075 vol
$1.27 each 		38,217,973
Filed 2026-03-10 13:03
Tx date 2026-03-06 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$555,991
+430,101 vol
$1.29 each 		37,830,898
Filed 2026-03-10 13:02
Tx date 2026-03-05 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$797,398
+614,139 vol
$1.30 each 		37,400,797
Filed 2026-02-26 14:56
Tx date 2026-02-23 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$18,957
+14,927 vol
$1.27 each 		36,786,658
Filed 2026-02-23 12:32
Tx date 2026-02-20 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$2,928,951
+2,311,722 vol
$1.27 each 		36,771,731
Filed 2026-02-23 12:32
Tx date 2026-02-18 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$480,954
+380,773 vol
$1.26 each 		34,460,009
Filed 2026-02-23 12:31
Tx date 2026-02-18 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$1,647,075
+1,347,632 vol
$1.22 each 		34,079,236
Filed 2026-01-29 09:35
Tx date 2026-01-28 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Direct Ownership
Common Shares
10 - Acquisition or disposition in the public market 		$-632,500
-250,000 vol
$2.53 each 		3,458,946
Filed 2026-01-29 09:34
Tx date 2026-01-27 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$-335,809.7649
-134,523 vol
$2.50 each 		32,731,604
Filed 2026-01-29 09:34
Tx date 2026-01-26 		$NDM
Northern Dynasty Minerals Ltd. 		Kopernik Global Investors, LLC
3 - 10% Security Holder of Issuer
Holder: Client Account (Control or Direction)
Common Shares
10 - Acquisition or disposition in the public market 		$-141,307.2096
-55,624 vol
$2.54 each 		32,866,127
Filed 2026-01-27 20:00
Tx date 2026-01-27 		$NDM
Northern Dynasty Minerals Ltd. 		BALAKRISHNAN, Desmond
4 - Director of Issuer
Direct Ownership
Options
52 - Expiration of options
-120,000 vol 		200,000
Filed 2026-01-27 19:58
Tx date 2026-01-27 		$NDM
Northern Dynasty Minerals Ltd. 		BALAKRISHNAN, Desmond
4 - Director of Issuer
Direct Ownership
Options
51 - Exercise of options
-120,000 vol