Culham, Harry Kenneth — Insider Profile

Insider Profile

Culham, Harry Kenneth

🔒 Follow — get an alert on any new filing

$CM

Companies Filed At

Open-Market Buys (2yr)

$62.3M

Buy Value (2yr, open-market)

Dec 31, 2025

Most Recent Trade

Credibility
Score

64%

Hit Rate

+3.5%

Avg 90d Return

+8.9%

Median 90d Return

Evaluated Trades

+19.4%

Best Trade

-15.4%

Worst Trade

Hit rate and returns are based on 80 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

44%

Hit Rate · 90d

-7.0%

Median Alpha · 90d

Closed Buys Evaluated

44%

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

Date	Company	Role	Nature	Dir.	Shares	Price	Value	Score
Dec 31, 2025	$CM CIBC	—	Plan / DRIP	Buy	142	$96.84	$14K	80
Dec 01, 2025	$CM CIBC	—	Other	Sell	75,711	—	—	80
Sep 26, 2025	$CM CIBC	—	Exercise	Buy	32,854	$70.05	$2.3M	80
Sep 26, 2025	$CM CIBC	—	Exercise	Buy	100,000	$54.94	$5.5M	80
Sep 26, 2025	$CM CIBC	—	Exercise	Buy	14,602	$55.40	$809K	80
Sep 26, 2025	$CM CIBC	—	Exercise	Sell	32,854	$70.05	$2.3M	80
Sep 26, 2025	$CM CIBC	—	Exercise	Sell	100,000	$54.94	$5.5M	80
Sep 26, 2025	$CM CIBC	—	Exercise	Sell	14,602	$55.40	$809K	80
Sep 26, 2025	$CM CIBC	—	Open Market	Buy	50,000	$112.51	$5.6M	80
Sep 26, 2025	$CM CIBC	—	Open Market	Buy	50,000	$112.51	$5.6M	80
Sep 26, 2025	$CM CIBC	—	Open Market	Buy	97,456	$112.17	$10.9M	80
Dec 31, 2024	$CM CIBC	—	Plan / DRIP	Buy	177	$69.20	$12K	80
Dec 31, 2024	$CM CIBC	—	Plan / DRIP	Buy	2,178	$70.08	$153K	80
Dec 11, 2024	$CM CIBC	—	Open Market	Buy	40,400	$94.60	$3.8M	80
Dec 11, 2024	$CM CIBC	—	Open Market	Buy	46,642	$95.30	$4.4M	80
Dec 11, 2024	$CM CIBC	—	Exercise	Sell	40,400	$55.75	$2.3M	80
Dec 11, 2024	$CM CIBC	—	Exercise	Buy	40,400	$55.75	$2.3M	80
Dec 11, 2024	$CM CIBC	—	Exercise	Sell	46,642	$54.94	$2.6M	80
Dec 11, 2024	$CM CIBC	—	Exercise	Buy	46,642	$54.94	$2.6M	80
Dec 10, 2024	$CM CIBC	—	Open Market	Buy	108,800	$94.20	$10.2M	80
Dec 10, 2024	$CM CIBC	—	Exercise	Buy	108,800	$55.75	$6.1M	80
Dec 10, 2024	$CM CIBC	—	Exercise	Sell	108,800	$55.75	$6.1M	80
Dec 09, 2024	$CM CIBC	—	Comp. Grant	Buy	6,294	—	—	80
Dec 09, 2024	$CM CIBC	—	Comp. Grant	Buy	58,744	—	—	80
Dec 09, 2024	$CM CIBC	—	Comp. Grant	Buy	175,664	—	—	80
Dec 01, 2024	$CM CIBC	—	Plan / DRIP	Buy	7,533	$90.74	$684K	80
Dec 01, 2024	$CM CIBC	—	Other	Sell	82,871	—	—	80
Nov 01, 2024	$CM CIBC	—	Plan / DRIP	Buy	11,754	$70.08	$824K	80
Nov 01, 2024	$CM CIBC	—	Plan / DRIP	Buy	8,802	$70.08	$617K	80
Sep 30, 2024	$CM CIBC	—	Exercise	Buy	800	$55.75	$45K	80
Sep 30, 2024	$CM CIBC	—	Exercise	Sell	12,174	$55.75	$679K	80
Sep 30, 2024	$CM CIBC	—	Exercise	Buy	12,174	$55.75	$679K	80
Sep 30, 2024	$CM CIBC	—	Exercise	Sell	800	$55.75	$45K	80
Sep 30, 2024	$CM CIBC	—	Open Market	Buy	12,174	$82.79	$1.0M	80
Sep 30, 2024	$CM CIBC	—	Open Market	Buy	800	$83.20	$67K	80
Sep 26, 2024	$CM CIBC	—	Open Market	Buy	25,000	$84.30	$2.1M	80
Sep 26, 2024	$CM CIBC	—	Exercise	Sell	25,000	$60.01	$1.5M	80
Sep 26, 2024	$CM CIBC	—	Exercise	Buy	25,000	$60.01	$1.5M	80
Sep 25, 2024	$CM CIBC	—	Exercise	Sell	50,000	$60.01	$3.0M	80
Sep 25, 2024	$CM CIBC	—	Exercise	Buy	50,000	$60.01	$3.0M	80
Sep 25, 2024	$CM CIBC	—	Open Market	Buy	50,000	$83.42	$4.2M	80
Sep 24, 2024	$CM CIBC	—	Open Market	Buy	25,000	$83.35	$2.1M	80
Sep 24, 2024	$CM CIBC	—	Exercise	Sell	25,000	$60.01	$1.5M	80
Sep 24, 2024	$CM CIBC	—	Exercise	Buy	25,000	$60.01	$1.5M	80
Sep 13, 2024	$CM CIBC	—	Exercise	Sell	47,430	$60.01	$2.8M	80
Sep 13, 2024	$CM CIBC	—	Exercise	Buy	47,430	$60.01	$2.8M	80
Sep 13, 2024	$CM CIBC	—	Open Market	Buy	47,430	$83.41	$4.0M	80
Sep 11, 2024	$CM CIBC	—	Open Market	Buy	49,400	$82.44	$4.1M	80
Sep 11, 2024	$CM CIBC	—	Exercise	Sell	49,400	$55.84	$2.8M	80
Sep 11, 2024	$CM CIBC	—	Exercise	Buy	49,400	$55.84	$2.8M	80
Sep 10, 2024	$CM CIBC	—	Exercise	Sell	600	$55.84	$34K	80
Sep 10, 2024	$CM CIBC	—	Open Market	Buy	600	$82.30	$49K	80
Sep 10, 2024	$CM CIBC	—	Exercise	Buy	600	$55.84	$34K	80
Sep 09, 2024	$CM CIBC	—	Exercise	Buy	50,000	$55.84	$2.8M	80
Sep 09, 2024	$CM CIBC	—	Exercise	Sell	50,000	$55.84	$2.8M	80
Sep 09, 2024	$CM CIBC	—	Open Market	Buy	50,000	$81.87	$4.1M	80
Dec 31, 2023	$CM CIBC	—	Plan / DRIP	Buy	2,428	$52.61	$128K	80
Dec 31, 2023	$CM CIBC	—	Plan / DRIP	Buy	204	$53.81	$11K	80
Dec 04, 2023	$CM CIBC	—	Comp. Grant	Buy	291,181	—	—	80
Dec 04, 2023	$CM CIBC	—	Comp. Grant	Buy	79,506	—	—	80
Dec 04, 2023	$CM CIBC	—	Comp. Grant	Buy	8,519	—	—	80
Dec 01, 2023	$CM CIBC	—	Other	Sell	65,892	—	—	80
Dec 01, 2023	$CM CIBC	—	Buyback	Buy	11,628	—	—	80
Nov 06, 2023	$CM CIBC	—	Plan / DRIP	Buy	13,389	$54.21	$726K	80
Nov 06, 2023	$CM CIBC	—	Plan / DRIP	Buy	9,595	$54.21	$520K	80
Dec 31, 2022	$CM CIBC	—	Plan / DRIP	Buy	162	$69.53	$11K	80
Dec 31, 2022	$CM CIBC	—	Plan / DRIP	Buy	1,929	$68.82	$133K	80
Dec 05, 2022	$CM CIBC	—	Comp. Grant	Buy	250,310	—	—	80
Dec 05, 2022	$CM CIBC	—	Comp. Grant	Buy	64,851	—	—	80
Dec 05, 2022	$CM CIBC	—	Comp. Grant	Buy	6,949	—	—	80
Dec 01, 2022	$CM CIBC	—	Other	Sell	75,540	—	—	80
Nov 18, 2022	$CM CIBC	—	Plan / DRIP	Buy	6,535	—	—	80
Nov 18, 2022	$CM CIBC	—	Plan / DRIP	Buy	10,071	—	—	80
May 13, 2022	$CM CIBC	—	Corp. Event	Buy	1,494	—	—	80
Mar 08, 2022	$CM CIBC	—	Open Market	Buy	2,500	$157.20	$393K	80
Mar 08, 2022	$CM CIBC	—	Exercise	Buy	7,500	$111.69	$838K	80
Mar 08, 2022	$CM CIBC	—	Open Market	Buy	2,500	$155.40	$388K	80
Mar 08, 2022	$CM CIBC	—	Exercise	Sell	7,500	$111.69	$838K	80
Mar 08, 2022	$CM CIBC	—	Open Market	Buy	2,500	$156.40	$391K	80
Mar 07, 2022	$CM CIBC	—	Open Market	Buy	2,500	$159.22	$398K	80
Mar 07, 2022	$CM CIBC	—	Exercise	Sell	5,000	$111.69	$558K	80
Mar 07, 2022	$CM CIBC	—	Open Market	Buy	2,500	$158.40	$396K	80
Mar 07, 2022	$CM CIBC	—	Exercise	Buy	5,000	$111.69	$558K	80
Mar 04, 2022	$CM CIBC	—	Open Market	Buy	2,500	$158.98	$397K	80
Mar 04, 2022	$CM CIBC	—	Exercise	Buy	5,000	$111.69	$558K	80
Mar 04, 2022	$CM CIBC	—	Corp. Event	Sell	940	$159.56	$150K	80
Mar 04, 2022	$CM CIBC	—	Exercise	Sell	5,000	$111.69	$558K	80
Mar 04, 2022	$CM CIBC	—	Corp. Event	Sell	2,500	$158.56	$396K	80
Mar 02, 2022	$CM CIBC	—	Open Market	Buy	2,500	$160.70	$402K	80
Mar 02, 2022	$CM CIBC	—	Exercise	Buy	7,500	$111.69	$838K	80
Mar 02, 2022	$CM CIBC	—	Open Market	Buy	5,000	$160.10	$800K	80
Mar 02, 2022	$CM CIBC	—	Exercise	Sell	7,500	$111.69	$838K	80
Mar 01, 2022	$CM CIBC	—	Exercise	Buy	7,449	$111.69	$832K	80
Mar 01, 2022	$CM CIBC	—	Exercise	Sell	7,449	$111.69	$832K	80
Mar 01, 2022	$CM CIBC	—	Open Market	Buy	7,449	$158.10	$1.2M	80
Jan 05, 2022	$CM CIBC	—	Exercise	Buy	10,000	$97.81	$978K	80
Jan 05, 2022	$CM CIBC	—	Open Market	Buy	5,000	$151.20	$756K	80
Jan 05, 2022	$CM CIBC	—	Exercise	Sell	10,000	$97.81	$978K	80
Jan 05, 2022	$CM CIBC	—	Open Market	Buy	5,000	$150.60	$753K	80
Jan 04, 2022	$CM CIBC	—	Exercise	Buy	10,000	$97.81	$978K	80
Jan 04, 2022	$CM CIBC	—	Open Market	Buy	5,000	$149.70	$748K	80
Jan 04, 2022	$CM CIBC	—	Exercise	Sell	10,000	$97.81	$978K	80
Jan 04, 2022	$CM CIBC	—	Corp. Event	Sell	5,000	$149.57	$748K	80
Dec 31, 2021	$CM CIBC	—	Plan / DRIP	Buy	104	$131.52	$14K	80
Dec 11, 2020	$CM CIBC	—	Plan / DRIP	Buy	7,075	—	—	80
Dec 11, 2020	$CM CIBC	—	Plan / DRIP	Buy	3,280	—	—	80
Dec 07, 2020	$CM CIBC	—	Comp. Grant	Buy	33,173	$110.16	$3.7M	80
Dec 07, 2020	$CM CIBC	—	Comp. Grant	Buy	82,301	$110.79	$9.1M	80
Dec 07, 2020	$CM CIBC	—	Comp. Grant	Buy	5,331	$110.16	$587K	80
Dec 01, 2020	$CM CIBC	—	Plan / DRIP	Buy	42,567	$110.16	$4.7M	80

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.