Strang, David Maxwell — Insider Profile

Insider Profile

Strang, David Maxwell

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$ERO

Companies Filed At

Open-Market Buys (2yr)

—

Buy Value (2yr, open-market)

Jan 12, 2026

Most Recent Trade

Credibility
Score

64%

Hit Rate

+4.8%

Avg 90d Return

+7.5%

Median 90d Return

Evaluated Trades

+33.8%

Best Trade

-41.8%

Worst Trade

Hit rate and returns are based on 36 open-market buys with evaluable 90-day outcomes. Score reflects historical conviction, not a guarantee of future performance. Limited signal — either below-average timing or insufficient trade history.

Cross-Company Track Record

81%

Hit Rate · 90d

+9.2%

Median Alpha · 90d

Closed Buys Evaluated

69%

Beat XIU

All-insider base rate: 59% hit rate · +1.3% mean alpha (n=11504)

cluster buyer high frequency

Entry: closing price on SEDI filing date (point-in-time). Exit: 90 calendar days later. Alpha vs XIU.TO (iShares TSX 60). Closed trades only. Not investment advice.

Research 32 closed buys with individual return outcomes available on the Research plan.

Political Donations · Elections Canada

$3K in individual political contributions across 11 donations (2014–2022).

Date	Party	Recipient	Amount
2022-03-31	New Democratic Party	New Democratic Party	$400
2021-12-22	Green Party of Canada	Green Party of Canada	$50
2021-12-10	Green Party of Canada	Green Party of Canada	$150
2021-09-09	Green Party of Canada	Green Party of Canada	$200
2020-12-30	Green Party of Canada	Green Party of Canada	$100
2020-10-24	Green Party of Canada	Green Party of Canada	$100
2020-09-03	Green Party of Canada	Green Party of Canada	$10
2019-10-11	Green Party of Canada	Green Party of Canada	$200
2019-10-02	Green Party of Canada	Green Party of Canada	$200
2019-03-27	Green Party of Canada	Green Party of Canada	$50
2014-11-27	Liberal Party of Canada	Liberal Party of Canada	$1K

Source: Elections Canada public contribution records (individual donations only; corporate political donations have been banned federally since 2007). Matched to this insider by name — shown for transparency, not a claim of wrongdoing and not a Confluence Score input.

Date	Company	Role	Nature	Dir.	Shares	Price	Value	Score
Jan 12, 2026	$ERO Ero Copper	—	Open Market	Buy	125,000	—	—	40
Jan 09, 2026	$ERO Ero Copper	—	Open Market	Buy	260,000	—	—	40
Jan 07, 2026	$ERO Ero Copper	—	Open Market	Buy	80,000	—	—	40
Jan 06, 2026	$ERO Ero Copper	—	Open Market	Buy	130,000	—	—	40
Jan 05, 2026	$ERO Ero Copper	—	Open Market	Buy	380,000	—	—	40
Jan 02, 2026	$ERO Ero Copper	—	Open Market	Buy	25,000	—	—	40
Dec 11, 2025	$ERO Ero Copper	—	Other	Sell	44,636	—	—	40
Dec 11, 2025	$ERO Ero Copper	—	Other	Buy	11,813	$34.58	$408K	40
Dec 11, 2025	$ERO Ero Copper	—	Other	Sell	25,409	$34.58	$879K	40
Dec 10, 2025	$ERO Ero Copper	—	Comp. Grant	Buy	35,384	$34.58	$1.2M	40
Dec 10, 2025	$ERO Ero Copper	—	Comp. Grant	Buy	12,813	—	—	40
Dec 10, 2025	$ERO Ero Copper	—	Comp. Grant	Buy	25,626	—	—	40
Dec 04, 2025	$ERO Ero Copper	—	Corp. Event	Sell	9,156	—	—	40
Nov 25, 2025	$ERO Ero Copper	—	Open Market	Buy	301,796	—	—	40
Nov 13, 2025	$ERO Ero Copper	—	Open Market	Buy	19,829	—	—	40
Nov 12, 2025	$ERO Ero Copper	—	Open Market	Buy	265,889	—	—	40
Nov 11, 2025	$ERO Ero Copper	—	Open Market	Buy	19,500	—	—	40
Nov 10, 2025	$ERO Ero Copper	—	Open Market	Buy	214,186	—	—	40
Sep 30, 2025	$ERO Ero Copper	—	Open Market	Buy	19,816	—	—	40
Sep 30, 2025	$ERO Ero Copper	—	Open Market	Buy	30,184	—	—	40
Dec 13, 2024	$ERO Ero Copper	—	Other	Buy	12,529	—	—	40
Dec 13, 2024	$ERO Ero Copper	—	Other	Sell	37,844	—	—	40
Dec 13, 2024	$ERO Ero Copper	—	Other	Sell	26,947	—	—	40
Dec 13, 2024	$ERO Ero Copper	—	Other	Buy	17,597	—	—	40
Dec 11, 2024	$ERO Ero Copper	—	Comp. Grant	Buy	21,876	—	—	40
Dec 11, 2024	$ERO Ero Copper	—	Comp. Grant	Buy	43,751	—	—	40
Dec 11, 2024	$ERO Ero Copper	—	Comp. Grant	Buy	58,871	$20.73	$1.2M	40
May 28, 2024	$ERO Ero Copper	—	Open Market	Buy	1,000,000	—	—	40
May 21, 2024	$ERO Ero Copper	—	Open Market	Buy	19,663	—	—	40
May 20, 2024	$ERO Ero Copper	—	Open Market	Buy	57,010	—	—	40
Dec 13, 2023	$ERO Ero Copper	—	Other	Buy	64,067	—	—	40
Dec 13, 2023	$ERO Ero Copper	—	Other	Sell	45,397	—	—	40
Dec 13, 2023	$ERO Ero Copper	—	Other	Buy	32,033	—	—	40
Dec 13, 2023	$ERO Ero Copper	—	Other	Buy	22,619	—	—	40
Dec 13, 2023	$ERO Ero Copper	—	Other	Buy	7,565	—	—	40
Dec 13, 2023	$ERO Ero Copper	—	Comp. Grant	Buy	84,457	$18.04	$1.5M	40
Dec 13, 2023	$ERO Ero Copper	—	Other	Sell	16,269	—	—	40
Sep 01, 2023	$ERO Ero Copper	—	Open Market	Buy	19,514	—	—	40
Aug 30, 2023	$ERO Ero Copper	—	Open Market	Buy	69,400	—	—	40
May 30, 2023	$ERO Ero Copper	—	Open Market	Buy	154,900	—	—	40
May 26, 2023	$ERO Ero Copper	—	Open Market	Buy	97,510	—	—	40
May 19, 2023	$ERO Ero Copper	—	Open Market	Buy	68,940	—	—	40
May 17, 2023	$ERO Ero Copper	—	Open Market	Buy	91,700	—	—	40
May 16, 2023	$ERO Ero Copper	—	Open Market	Buy	34,400	—	—	40
Mar 31, 2023	$ERO Ero Copper	—	Open Market	Buy	182,975	—	—	40
Mar 30, 2023	$ERO Ero Copper	—	Open Market	Buy	98,996	—	—	40
Mar 27, 2023	$ERO Ero Copper	—	Ownership Chg	Sell	5,601,910	—	—	40
Mar 27, 2023	$ERO Ero Copper	—	Ownership Chg	Buy	5,601,910	—	—	40
Mar 09, 2023	$ERO Ero Copper	—	Open Market	Buy	215,125	—	—	40
Jan 03, 2023	$ERO Ero Copper	—	Open Market	Buy	28,335	—	—	40
Nov 10, 2022	$ERO Ero Copper	—	Open Market	Buy	150,000	—	—	40
Nov 10, 2022	$ERO Ero Copper	—	Exercise	Sell	150,000	$6.74	$1.0M	40
Nov 10, 2022	$ERO Ero Copper	—	Exercise	Buy	150,000	$6.74	$1.0M	40
Jan 04, 2021	$ERO Ero Copper	—	Ownership Chg	Buy	5,846,935	—	—	40
Jan 04, 2021	$ERO Ero Copper	—	Ownership Chg	Sell	922,602	—	—	40
Jan 04, 2021	$ERO Ero Copper	—	Ownership Chg	Sell	4,924,333	—	—	40
Dec 17, 2020	$ERO Ero Copper	—	Other	Buy	45,397	—	—	40
Nov 20, 2020	$ERO Ero Copper	—	Open Market	Buy	48,100	—	—	40
Nov 19, 2020	$ERO Ero Copper	—	Open Market	Buy	211,300	—	—	40
Nov 18, 2020	$ERO Ero Copper	—	Open Market	Buy	136,700	—	—	40
Nov 18, 2020	$ERO Ero Copper	—	Exercise	Sell	1,000,000	$1.20	$1.2M	40
Nov 18, 2020	$ERO Ero Copper	—	Exercise	Buy	1,000,000	$1.20	$1.2M	40
Nov 17, 2020	$ERO Ero Copper	—	Open Market	Buy	12,900	—	—	40

Muted rows are plan purchases, compensation grants, or DRIP — not open-market. Confluence Scores reflect the company's current score, not the score at time of trade.