Mayer, Christian — Insider Profile

Insider Profile

Mayer, Christian

🔒 Follow — get an alert on any new filing

$CIGI

Companies Filed At

Open-Market Buys (2yr)

$12.4M

Buy Value (2yr, open-market)

May 15, 2026

Most Recent Trade

Credibility
Score

12%

Hit Rate

-10.7%

Avg 90d Return

-10.7%

Median 90d Return

Evaluated Trades

+16.4%

Best Trade

-26.5%

Worst Trade

Hit rate and returns are based on 16 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

—

Hit Rate · 90d

-20.0%

Median Alpha · 90d

Closed Buys Evaluated

10%

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 10 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

$CIGI 56

Colliers International

$230K · 1 buy

Last buy May 15, 2026

Political Donations · Elections Canada

$7K in individual political contributions across 9 donations (2007–2023).

Date	Party	Recipient	Amount
2023-01-20	Conservative Party of Canada	Conservative Party of Canada	$2K
2022-03-12	Conservative Party of Canada	Conservative Party of Canada	$2K
2021-06-16	Conservative Party of Canada	Conservative Party of Canada	$550
2019-04-30	Conservative Party of Canada	Conservative Party of Canada	$550
2018-03-21	Conservative Party of Canada	Conservative Party of Canada	$500
2017-12-21	Conservative Party of Canada	Conservative Party of Canada	$550
2017-04-21	Conservative Party of Canada	Scheer, Andrew	$500
2017-04-21	Conservative Party of Canada	Conservative Party of Canada	$500
2007-03-22	Conservative Party of Canada	Conservative Party of Canada	$250

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
May 15, 2026	$CIGI Colliers International	—	Open Market	Buy	2,500	$92.00	$230K	56
May 11, 2026	$CIGI Colliers International	—	Comp. Grant	Buy	10,000	$98.63	$986K	56
Dec 11, 2025	$CIGI Colliers International	—	Open Market	Buy	20,000	$201.00	$4.0M	56
Dec 10, 2025	$CIGI Colliers International	—	Open Market	Buy	20,000	$198.06	$4.0M	56
Dec 08, 2025	$CIGI Colliers International	—	Exercise	Sell	44,000	$88.90	$3.9M	56
Dec 08, 2025	$CIGI Colliers International	—	Exercise	Buy	44,000	$88.90	$3.9M	56
Feb 24, 2025	$CIGI Colliers International	—	Exercise	Sell	10,000	$87.54	$875K	56
Feb 24, 2025	$CIGI Colliers International	—	Exercise	Buy	10,000	$87.54	$875K	56
Dec 03, 2024	$CIGI Colliers International	—	Comp. Grant	Buy	70,000	$151.62	$10.6M	56
Nov 07, 2024	$CIGI Colliers International	—	Exercise	Sell	30,000	$74.71	$2.2M	56
Nov 07, 2024	$CIGI Colliers International	—	Open Market	Buy	20,000	$209.21	$4.2M	56
Nov 07, 2024	$CIGI Colliers International	—	Exercise	Buy	30,000	$74.71	$2.2M	56
Mar 12, 2024	$CIGI Colliers International	—	Open Market	Buy	17,500	$161.02	$2.8M	56
Mar 12, 2024	$CIGI Colliers International	—	Open Market	Buy	10,000	$160.01	$1.6M	56
Mar 07, 2024	$CIGI Colliers International	—	Exercise	Sell	30,000	$68.65	$2.1M	56
Mar 07, 2024	$CIGI Colliers International	—	Exercise	Buy	30,000	$68.65	$2.1M	56
Dec 05, 2023	$CIGI Colliers International	—	Comp. Grant	Buy	70,000	$106.98	$7.5M	56
May 24, 2023	$CIGI Colliers International	—	Corp. Event	Buy	8,880	—	—	56
Feb 17, 2023	$CIGI Colliers International	—	Open Market	Buy	10,000	$159.00	$1.6M	56
Feb 16, 2023	$CIGI Colliers International	—	Exercise	Sell	25,000	$67.30	$1.7M	56
Feb 16, 2023	$CIGI Colliers International	—	Exercise	Buy	25,000	$67.30	$1.7M	56
Feb 16, 2022	$CIGI Colliers International	—	Open Market	Buy	5,000	$191.59	$958K	56
Feb 16, 2022	$CIGI Colliers International	—	Open Market	Buy	2,500	$192.50	$481K	56
Feb 16, 2022	$CIGI Colliers International	—	Open Market	Buy	5,000	$191.53	$958K	56
Feb 14, 2022	$CIGI Colliers International	—	Exercise	Buy	25,000	$45.00	$1.1M	56
Feb 14, 2022	$CIGI Colliers International	—	Exercise	Sell	25,000	$45.00	$1.1M	56
Jan 12, 2022	$CIGI Colliers International	—	Open Market	Buy	5	—	—	56

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.