Vanderkooy, Sheldon Alexander — Insider Profile

Insider Profile

Vanderkooy, Sheldon Alexander

🔒 Follow — get an alert on any new filing

$TFPM

Companies Filed At

Open-Market Buys (2yr)

$5.2M

Buy Value (2yr, open-market)

Sep 18, 2026

Most Recent Trade

Credibility
Score

89%

Hit Rate

+14.2%

Avg 90d Return

+11.9%

Median 90d Return

Evaluated Trades

+34.0%

Best Trade

-13.0%

Worst Trade

Hit rate and returns are based on 45 open-market buys with evaluable 90-day outcomes. Score reflects historical conviction, not a guarantee of future performance. This insider ranks among the highest-credibility tracked on Form55.

Cross-Company Track Record

89%

Hit Rate · 90d

+4.6%

Median Alpha · 90d

Closed Buys Evaluated

54%

Beat XIU

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

cluster buyer high frequency size concentrated

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

Currently Accumulating Companies this insider is net-buying on the open market over the last 90 days

$TFPM 85

Triple Flag Precious Metals Corp

$1.1M · 1 buy

Last buy Sep 18, 2026

Date	Company	Role	Nature	Dir.	Shares	Price	Value	Score
Sep 18, 2026	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	25,000	$46.00	$1.1M	85
Mar 31, 2026	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	25,000	$47.74	$1.2M	85
Mar 31, 2026	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	143	—	—	85
Mar 31, 2026	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	103	—	—	85
Dec 31, 2025	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	119	—	—	85
Dec 31, 2025	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	133	—	—	85
Dec 31, 2025	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	133	—	—	85
Sep 30, 2025	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	141	—	—	85
Sep 30, 2025	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	158	—	—	85
Jun 30, 2025	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	474	—	—	85
Jun 30, 2025	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	361	—	—	85
Jun 03, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$32.20	$161K	85
Jun 03, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$31.95	$160K	85
Jun 03, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$32.10	$161K	85
Jun 03, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	10,000	$32.10	$321K	85
Jun 03, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$31.90	$160K	85
Jun 03, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$32.15	$161K	85
Jun 02, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	15,000	$31.50	$472K	85
Mar 11, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$26.01	$130K	85
Mar 10, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	10,000	$25.31	$253K	85
Mar 07, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$25.70	$128K	85
Mar 07, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$25.30	$126K	85
Mar 07, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	10,000	$25.12	$251K	85
Mar 07, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$25.35	$127K	85
Mar 07, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$25.15	$126K	85
Mar 07, 2025	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$25.55	$128K	85
Mar 03, 2025	$TFPM Triple Flag Precious Metals Corp	—	Other	Sell	10,418	$23.89	$249K	85
Mar 03, 2025	$TFPM Triple Flag Precious Metals Corp	—	Other	Sell	11,458	$23.89	$274K	85
Dec 31, 2024	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	431	—	—	85
Dec 31, 2024	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	802	—	—	85
Jun 21, 2024	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$20.70	$104K	85
Jun 21, 2024	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$20.65	$103K	85
Jun 20, 2024	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	3,000	$21.02	$63K	85
Jun 20, 2024	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$21.01	$105K	85
Jun 20, 2024	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	5,000	$21.00	$105K	85
Jun 20, 2024	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	7,000	$21.11	$148K	85
Jun 18, 2024	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	10,000	$21.30	$213K	85
Jun 18, 2024	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	10,000	$21.35	$214K	85
Jun 18, 2024	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	10,000	$21.11	$211K	85
Jun 18, 2024	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	20,000	$21.25	$425K	85
Jun 17, 2024	$TFPM Triple Flag Precious Metals Corp	—	Ownership Chg	Sell	430,000	$20.70	$8.9M	85
Jun 17, 2024	$TFPM Triple Flag Precious Metals Corp	—	Ownership Chg	Buy	430,000	$20.70	$8.9M	85
May 29, 2024	$TFPM Triple Flag Precious Metals Corp	—	Other	Sell	11,916	$24.00	$286K	85
Mar 04, 2024	$TFPM Triple Flag Precious Metals Corp	—	Comp. Grant	Buy	30,727	—	—	85
Mar 04, 2024	$TFPM Triple Flag Precious Metals Corp	—	Comp. Grant	Buy	30,727	—	—	85
Aug 11, 2023	$TFPM Triple Flag Precious Metals Corp	—	Corp. Event	Sell	147	—	—	85
Aug 11, 2023	$TFPM Triple Flag Precious Metals Corp	—	Corp. Event	Buy	178,694	—	—	85
Mar 31, 2023	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	74,400	$20.10	$1.5M	85
Mar 30, 2023	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Buy	25,600	$20.25	$518K	85
Mar 27, 2023	$TFPM Triple Flag Precious Metals Corp	—	Ownership Chg	Sell	1,327,515	—	—	85
Mar 27, 2023	$TFPM Triple Flag Precious Metals Corp	—	Ownership Chg	Buy	1,327,515	—	—	85
Mar 24, 2023	$TFPM Triple Flag Precious Metals Corp	—	Ownership Chg	Sell	1,427,515	$18.55	$26.5M	85
Mar 24, 2023	$TFPM Triple Flag Precious Metals Corp	—	Ownership Chg	Buy	1,427,515	$18.55	$26.5M	85
Mar 03, 2023	$TFPM Triple Flag Precious Metals Corp	—	Comp. Grant	Buy	155,549	—	—	85
Mar 03, 2023	$TFPM Triple Flag Precious Metals Corp	—	Comp. Grant	Buy	9,726	—	—	85
Dec 31, 2022	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	341	—	—	85
Mar 04, 2022	$TFPM Triple Flag Precious Metals Corp	—	Comp. Grant	Buy	10,926	—	—	85
Mar 04, 2022	$TFPM Triple Flag Precious Metals Corp	—	Comp. Grant	Buy	239,586	—	—	85
Feb 25, 2022	$TFPM Triple Flag Precious Metals Corp	—	Open Market	Sell	100,000	$15.94	$1.6M	85
Dec 31, 2021	$TFPM Triple Flag Precious Metals Corp	—	Plan / DRIP	Buy	109	—	—	85

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.