FAIRFAX FINANCIAL HOLDINGS LTD/ CAN ATS — ATS CORPORATION

Ownership history in FAIRFAX FINANCIAL HOLDINGS LTD/ CAN  ·  10 quarters on record

AI Ownership Summary

FAIRFAX FINANCIAL HOLDINGS LTD/ CAN reported ATS CORPORATION (ATS) in 10 quarterly 13F filings from 2024 Q3 through 2026 Q1. Peak portfolio weight reached 4.75% in 2024 Q4. The latest visible filing shows ATS at 3.57% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this ATS ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was FAIRFAX FINANCIAL HOLDINGS LTD/ CAN's position in ATS CORPORATION, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

ATS was reported at 3.57% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
4.75% in 2024 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q3 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

ATS stock page FAIRFAX FINANCIAL HOLDINGS LTD/ CAN fund profile FAIRFAX FINANCIAL HOLDINGS LTD/ CAN full holdings
How FAIRFAX FINANCIAL HOLDINGS LTD/ CAN held ATS — position size vs. price
% of Fund (quarterly)    ATS price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 7 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 UNCHANGED — — — 2,486,400 — 0% 3.57% $69.4M 2026-05-15 $32.00
2025 Q4 UNCHANGED — — — 2,486,400 — 0% 3.28% $68.3M 2026-02-17 $31.62
2025 Q3 UNCHANGED — — — 2,486,400 — 0% 3.11% $64.1M 2025-11-14 $25.83
2025 Q2 UNCHANGED — — — 2,486,400 — 0% 4.23% $79.1M 2025-08-14 $28.36
2025 Q1 UNCHANGED — — — 2,486,400 — 0% 3.29% $60.8M 2025-05-15 $27.74
2024 Q4 ADDED — — — 2,486,400 +2,429,700 +4285.2% 4.75% $73.9M 2025-02-14 $29.25
2024 Q3 ADDED — — — 56,700 +16,700 +41.8% 0.15% $1.6M 2024-11-14 $28.76
3 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding ATS

As of 2026 Q1 — sorted by position size

MASON CAPITAL MANAGEMENT LLC 3Y 7Y 75.48% Turtle Creek Asset Management Inc. 3Y 7Y 7.46% ACK Asset Management LLC 3Y 7Y 6.5% Candelo Capital Management LP 3.53% Scheer, Rowlett & Associates Investment Management Ltd. 3Y 7Y 2.4% Hill City Capital, LP 3Y 1.66% EdgePoint Investment Group Inc. 3Y 7Y 1.62% Marathon Asset Management Ltd 3Y 1.18% Beutel, Goodman & Co Ltd. 3Y 7Y 1.04% Front Street Capital Management, Inc. 3Y 7Y 0.98%

FAQ About FAIRFAX FINANCIAL HOLDINGS LTD/ CAN and ATS

These are the practical questions this page is built to answer before you even open the full history table.

How long has FAIRFAX FINANCIAL HOLDINGS LTD/ CAN reported owning ATS?

FAIRFAX FINANCIAL HOLDINGS LTD/ CAN reported ATS across 7 quarterly 13F filings, from 2024 Q3 through 2026 Q1.

What was the largest reported ATS position in FAIRFAX FINANCIAL HOLDINGS LTD/ CAN's portfolio?

The largest reported portfolio weight for ATS was 4.75% in 2024 Q4.

What is the latest reported ATS position on this page?

The most recent filing on this page is 2026 Q1, when FAIRFAX FINANCIAL HOLDINGS LTD/ CAN reported 2,486,400 shares, equal to 3.57% of portfolio, with an estimated market value of $69.4M.

What does the chart on this ATS ownership page compare?

The chart compares FAIRFAX FINANCIAL HOLDINGS LTD/ CAN's quarterly ATS portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did FAIRFAX FINANCIAL HOLDINGS LTD/ CAN time their ATS position?

Based on 13F filing dates vs. subsequent ATS price moves, FAIRFAX FINANCIAL HOLDINGS LTD/ CAN correctly timed 1 out of 3 reported position changes (33%). The annualised alpha on ATS relative to SPY over the holding period was -16.6%.

← Back to FAIRFAX FINANCIAL HOLDINGS LTD/ CAN Holdings