Ammerman, Douglas Keith — Insider Profile

Insider Profile

Ammerman, Douglas Keith

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$STN

Companies Filed At

Open-Market Buys (2yr)

$704K

Buy Value (2yr, open-market)

Jul 02, 2026

Most Recent Trade

Credibility
Score

64%

Hit Rate

+6.1%

Avg 90d Return

+4.9%

Median 90d Return

Evaluated Trades

+30.7%

Best Trade

-11.5%

Worst Trade

Hit rate and returns are based on 50 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

62%

Hit Rate · 90d

-2.1%

Median Alpha · 90d

Closed Buys Evaluated

38%

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

Date	Company	Role	Nature	Dir.	Shares	Price	Value	Score
Jul 02, 2026	$STN Stantec	—	Open Market	Buy	681	$97.84	$67K	63
Apr 01, 2026	$STN Stantec	—	Open Market	Buy	534	$121.68	$65K	63
Jan 02, 2026	$STN Stantec	—	Open Market	Buy	497	$130.80	$65K	63
Dec 31, 2025	$STN Stantec	—	Plan / DRIP	Buy	468	$130.66	$61K	63
Jul 02, 2025	$STN Stantec	—	Open Market	Buy	840	$147.10	$124K	63
Apr 01, 2025	$STN Stantec	—	Open Market	Buy	1,078	$119.49	$129K	63
Jan 02, 2025	$STN Stantec	—	Open Market	Buy	1,190	$113.53	$135K	63
Dec 31, 2024	$STN Stantec	—	Plan / DRIP	Buy	510	$110.88	$57K	63
Oct 01, 2024	$STN Stantec	—	Open Market	Buy	10	$107.89	$1K	63
Oct 01, 2024	$STN Stantec	—	Open Market	Buy	1,100	$107.79	$119K	63
Jul 02, 2024	$STN Stantec	—	Open Market	Buy	15	$112.25	$2K	63
Jul 02, 2024	$STN Stantec	—	Open Market	Buy	1,005	$112.84	$113K	63
Apr 01, 2024	$STN Stantec	—	Open Market	Buy	1,010	$112.64	$114K	63
Jan 02, 2024	$STN Stantec	—	Open Market	Buy	10	$104.56	$1K	63
Jan 02, 2024	$STN Stantec	—	Open Market	Buy	1,057	$105.37	$111K	63
Dec 31, 2023	$STN Stantec	—	Plan / DRIP	Buy	166	$67.24	$11K	63
Dec 31, 2023	$STN Stantec	—	Plan / DRIP	Buy	158	$78.68	$12K	63
Dec 31, 2023	$STN Stantec	—	Plan / DRIP	Buy	146	$87.44	$13K	63
Dec 31, 2023	$STN Stantec	—	Plan / DRIP	Buy	148	$88.91	$13K	63
Oct 02, 2023	$STN Stantec	—	Comp. Grant	Buy	1,348	$88.13	$119K	63
Jul 04, 2023	$STN Stantec	—	Comp. Grant	Buy	1,340	$86.49	$116K	63
Apr 03, 2023	$STN Stantec	—	Comp. Grant	Buy	1,496	$79.01	$118K	63
Jan 03, 2023	$STN Stantec	—	Comp. Grant	Buy	1,825	$64.88	$118K	63
Dec 31, 2022	$STN Stantec	—	Plan / DRIP	Buy	160	$62.67	$10K	63
Dec 31, 2022	$STN Stantec	—	Plan / DRIP	Buy	129	$68.98	$9K	63
Dec 31, 2022	$STN Stantec	—	Plan / DRIP	Buy	182	$57.14	$10K	63
Dec 31, 2022	$STN Stantec	—	Plan / DRIP	Buy	170	$63.40	$11K	63
Oct 03, 2022	$STN Stantec	—	Comp. Grant	Buy	1,997	$60.58	$121K	63
Jul 04, 2022	$STN Stantec	—	Comp. Grant	Buy	1,998	$56.39	$113K	63
Apr 01, 2022	$STN Stantec	—	Comp. Grant	Buy	1,745	$62.71	$109K	63
Jan 04, 2022	$STN Stantec	—	Comp. Grant	Buy	1,556	$71.07	$111K	63
Dec 31, 2021	$STN Stantec	—	Comp. Grant	Buy	294	$59.50	$17K	63
Dec 31, 2021	$STN Stantec	—	Plan / DRIP	Buy	144	$60.30	$9K	63
Dec 31, 2021	$STN Stantec	—	Comp. Grant	Buy	800	$59.50	$48K	63
Dec 31, 2021	$STN Stantec	—	Plan / DRIP	Buy	150	$56.18	$8K	63
Dec 31, 2021	$STN Stantec	—	Comp. Grant	Buy	316	$55.31	$17K	63
Dec 31, 2021	$STN Stantec	—	Comp. Grant	Buy	800	$55.31	$44K	63
Dec 31, 2021	$STN Stantec	—	Plan / DRIP	Buy	148	$55.80	$8K	63
Dec 31, 2021	$STN Stantec	—	Comp. Grant	Buy	325	$53.80	$17K	63
Dec 31, 2021	$STN Stantec	—	Comp. Grant	Buy	800	$53.80	$43K	63
Dec 31, 2021	$STN Stantec	—	Plan / DRIP	Buy	176	$42.76	$8K	63
Dec 31, 2021	$STN Stantec	—	Comp. Grant	Buy	423	$41.28	$17K	63
Dec 31, 2021	$STN Stantec	—	Comp. Grant	Buy	800	$41.28	$33K	63
Dec 31, 2020	$STN Stantec	—	Plan / DRIP	Buy	171	$42.42	$7K	63
Dec 31, 2020	$STN Stantec	—	Comp. Grant	Buy	800	$41.91	$34K	63
Dec 31, 2020	$STN Stantec	—	Plan / DRIP	Buy	188	$37.77	$7K	63
Dec 31, 2020	$STN Stantec	—	Comp. Grant	Buy	800	$36.00	$29K	63
Dec 31, 2020	$STN Stantec	—	Comp. Grant	Buy	800	$36.70	$29K	63
Dec 31, 2020	$STN Stantec	—	Comp. Grant	Buy	800	$40.43	$32K	63
Dec 31, 2020	$STN Stantec	—	Plan / DRIP	Buy	184	$40.15	$7K	63
Oct 01, 2020	$STN Stantec	—	Open Market	Buy	353	$40.49	$14K	63
Jul 02, 2020	$STN Stantec	—	Open Market	Buy	360	$41.78	$15K	63
Apr 01, 2020	$STN Stantec	—	Open Market	Buy	500	$35.03	$18K	63
Jan 02, 2020	$STN Stantec	—	Open Market	Buy	308	$36.78	$11K	63

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.