Mustard Seed Investor logo: a sprouting mustard seedMustard Seed Investor
← All stocks
ATSIndustrialsCommon Stock

ATS Corp

Held by 4 tracked managers as of Q2 2026 · CUSIP ⓘCUSIP: A 9-character ID for one specific security - one share class of one company, or one bond. Tickers can change and can mean different things in different countries; a CUSIP always identifies exactly the same security, which is why filings use it. Guide 00217Y104 · Sector ⓘGICS sectors: The 11-sector system most investors know (Global Industry Classification Standard): Technology, Health Care, Financials and so on. This site assigns each company a GICS-style sector from its SIC code, with a few hand corrections, so sector pages match the names investors expect. Guide

Download report
In plain English: 4 of the investors we track own this stock. In the latest quarter, 1 of them bought more of it and 3 sold some or all of theirs. That tells you what they did last quarter — not what the stock will do next.

Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer

Managers holding
4
-2 vs last quarter (like-for-like)
Total value held
$242.29M
Across tracked managers
Average weight ⓘOn average, how big this stock is in the portfolios that own it (its share of each manager's reported portfolio value).
0.9%
Of each manager's book
QoQ value ⓘLike-for-like: only managers that filed both quarters are compared, so a manager filing late (or confidentially) does not look like buying or selling. Includes price changes.
-$19.74M
-8.6% vs last quarter
Net shares bought
-866.5K
Est. net flow -$24.83M
Quarter activity
1 bought · 3 sold
0 new · 2 sold out

Tracked capital in this stock

Total value held (area) and number of managers (line). Dips can mean a large holder filed that quarter confidentially (e.g. Norges Bank in Q1/Q3).

Chart: Tracked capital in this stock

Aggregate buying and selling

Net share change reported each quarter

Chart: Aggregate buying and selling

Who owns ATS?

🔒 The 'who added and who trimmed' chart is a Plus feature

You're viewing the Free plan. Upgrade to unlock The 'who added and who trimmed' chart — every paid plan starts with a 7-day free trial, and you can cancel in two clicks.

See plans & upgrade Sign in

Who owns ATS? — Q2 2026

Holders ranked by position size, with each one's quarter-over-quarter change.

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

# Manager Fund Shares Value ↓ % of their portfolio QoQ Δ shares Δ shares % Est. Δ value ⓘChange in shares × this quarter's price
1 Beutel Goodman Beutel, Goodman & Co 4.80M $138.22M 1.0% Reduced -657.8K -12.1% -$18.95M
2 Prem Watsa Fairfax Financial Holdings 2.49M $70.49M 2.7% Held 0 0.0% $0
3 Norges Bank Norges Bank Investment Management 1.08M $31.22M 0.0% — — — —
4 Ken Griffin Citadel Advisors 82.31K $2.37M 0.0% Added +1.1K +1.3% +$30.77K

Sold out completely this quarter

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

Manager Fund Shares sold Value last quarter ↓
Chuck Royce Royce & Associates -179.5K $5.06M
David Shaw D.E. Shaw & Co. -30.2K $850.98K

Politician trades

Politician trades in ATS

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

No politician trades match these filters.