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Canada Metals & Mining

Northern Dynasty Minerals Ltd (NDM)

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Over the last 90 days, Northern Dynasty Minerals Ltd. has seen significant insider selling, with a net value of -$2,290,759.49 and a net insider count of -4. Notably, Kopernik Global Investors, LLC, a 10% security holder, has been the most active seller. Executive selling also contributed to the net negative activity.
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Ticker: NDM Exchange: TOR
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Kopernik Global Investors, LLC
10% Security Holder of Issuer
1 sale — total 100,000 USD
Sale 16 Jun 2026
Value US$2,521,502.91 | Price 117.08 | Shares 28,112
Sale 2 Jun 2026
Value CA$2,105,336.20 | Price 383.92 | Shares 1,050
Sale 14 May 2026
Value CA$171,600.00 | Price 3.12 | Shares 55,000
Sale 13 May 2026
Value CA$308,050.00 | Price 3.05 | Shares 101,000
Sale 13 May 2026
Value CA$310,000.00 | Price 3.10 | Shares 100,000
Sale 20 Apr 2026
Value US$859,840.00 | Price 2.15 | Shares 400,000
Buy 12 Mar 2026
Value US$43,086.00 | Price 1.29 | Shares 33,400
Buy 23 Feb 2026
Value US$18,957.29 | Price 1.27 | Shares 14,927
Buy 20 Feb 2026
Value US$2,928,951.77 | Price 1.27 | Shares 2,311,722
Buy 18 Feb 2026
Value US$480,954.38 | Price 1.26 | Shares 380,773
Buy 18 Feb 2026
Value US$1,647,075.83 | Price 1.22 | Shares 1,347,632
Sale 28 Jan 2026
Value US$632,500.00 | Price 2.53 | Shares 250,000
Sale 27 Jan 2026
Value US$335,809.76 | Price 2.50 | Shares 134,523
Sale 26 Jan 2026
Value US$141,307.21 | Price 2.54 | Shares 55,624
Sale 12 Jan 2026
Value CA$606,440.00 | Price 3.03 | Shares 200,000
Sale 9 Jan 2026
Value CA$585,480.00 | Price 2.93 | Shares 200,000
Sale 9 Jan 2026
Value CA$727,725.00 | Price 2.91 | Shares 250,000
Sale 8 Jan 2026
Value CA$370,200.00 | Price 3.09 | Shares 120,000
Sale 8 Jan 2026
Value CA$360,000.00 | Price 3.00 | Shares 120,000
Sale 30 Dec 2025
Value US$158,050.90 | Price 2.05 | Shares 77,098
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-18 2026-06-16 S Sale
3.3
Kopernik Global Investors, LLC

10% Security Holder of Issuer

Large shareholder
28,112 -35.9%
117.08
US$2,521,503 		28,112 -35.9% 117.08 US$2,521,503
2026-06-05 2026-06-02 S Sale
3.2
Thomas, Trevor

Senior Officer of Issuer

Officer
1,050 +34.2%
383.92
CA$2,105,336 		1,050 +34.2% 383.92 CA$2,105,336
2026-05-20 2026-05-14 S Sale
3.1
Chodos, Adam Jonathan

Senior Officer of Issuer

Officer
776 +21.0%
453.63
CA$2,972,730 		776 +21.0% 453.63 CA$2,972,730
2026-05-16 2026-05-13 S Sale
3.2
Westerlund, Michael J.

Senior Officer of Issuer

Officer
101,000 -50.2%
3.05
CA$308,050 		101,000 -50.2% 3.05 CA$308,050
2026-05-15 2026-05-13 S Sale
3.2
Thomas, Trevor

Senior Officer of Issuer

Officer
100,000 -36.8%
3.10
CA$310,000 		100,000 -36.8% 3.10 CA$310,000
2026-04-23 2026-04-20 S Sale
3.3
Kopernik Global Investors, LLC

10% Security Holder of Issuer

Large shareholder
400,000 -11.6%
2.15
US$859,840 		400,000 -11.6% 2.15 US$859,840
2026-03-17 2026-03-12 B Purchase
3.3
Kopernik Global Investors, LLC

10% Security Holder of Issuer

Large shareholder
33,400 +0.1%
1.29
US$43,086 		33,400 +0.1% 1.29 US$43,086
2026-02-26 2026-02-23 B Purchase
3.3
Kopernik Global Investors, LLC

10% Security Holder of Issuer

Large shareholder
14,927 +0.0%
1.27
US$18,957 		14,927 +0.0% 1.27 US$18,957
2026-02-23 2026-02-20 B Purchase
3.3
Kopernik Global Investors, LLC

10% Security Holder of Issuer

Large shareholder
2,311,722 +6.7%
1.27
US$2,928,952 		2,311,722 +6.7% 1.27 US$2,928,952
2026-02-23 2026-02-18 B Purchase
3.3
Kopernik Global Investors, LLC

10% Security Holder of Issuer

Large shareholder
380,773 +1.1%
1.26
US$480,954 		380,773 +1.1% 1.26 US$480,954
2026-02-23 2026-02-18 B Purchase
3.3
Kopernik Global Investors, LLC

10% Security Holder of Issuer

Large shareholder
1,347,632 +4.1%
1.22
US$1,647,076 		1,347,632 +4.1% 1.22 US$1,647,076
2026-01-29 2026-01-28 S Sale
3.3
Kopernik Global Investors, LLC

10% Security Holder of Issuer

Large shareholder
250,000 -6.7%
2.53
US$632,500 		250,000 -6.7% 2.53 US$632,500
2026-01-29 2026-01-27 S Sale
3.3
Kopernik Global Investors, LLC

10% Security Holder of Issuer

Large shareholder
134,523 -0.4%
2.50
US$335,810 		134,523 -0.4% 2.50 US$335,810
2026-01-29 2026-01-26 S Sale
3.3
Kopernik Global Investors, LLC

10% Security Holder of Issuer

Large shareholder
55,624 -0.2%
2.54
US$141,307 		55,624 -0.2% 2.54 US$141,307
2026-01-12 2026-01-12 S Sale
2.8
Dickinson, Robert Allan

10% Security Holder of Issuer, Director of Issuer

Non-Executive Director Large shareholder
200,000 -11.9%
3.03
CA$606,440 		200,000 -11.9% 3.03 CA$606,440
2026-01-12 2026-01-09 S Sale
2.8
Dickinson, Robert Allan

10% Security Holder of Issuer, Director of Issuer

Non-Executive Director Large shareholder
200,000 -10.7%
2.93
CA$585,480 		200,000 -10.7% 2.93 CA$585,480
2026-01-12 2026-01-09 S Sale
2.8
Dickinson, Robert Allan

10% Security Holder of Issuer, Director of Issuer

Non-Executive Director Large shareholder
250,000 -11.8%
2.91
CA$727,725 		250,000 -11.8% 2.91 CA$727,725
2026-01-12 2026-01-08 S Sale
3.3
Pickering, Kenneth William

Director of Issuer

Non-Executive Director
120,000 -35.7%
3.09
CA$370,200 		120,000 -35.7% 3.09 CA$370,200
2026-01-09 2026-01-08 S Sale
3.3
BALAKRISHNAN, Desmond

Director of Issuer

Non-Executive Director
120,000 -93.8%
3.00
CA$360,000 		120,000 -93.8% 3.00 CA$360,000
2025-12-31 2025-12-30 S Sale
3.3
Kopernik Global Investors, LLC

10% Security Holder of Issuer

Large shareholder
77,098 -2.0%
2.05
US$158,051 		77,098 -2.0% 2.05 US$158,051
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