Who owns ATS? 13F holders and whale ownership
ATS is tracked across public portfolios in Whale Analyzer. This page answers who owns ATS, which top funds are buying ATS, aggregate disclosed value, and recent position changes based on public data. Turtle Creek Asset Management is the largest reported holder at $138M; the top five funds control 100.0% of reported ownership; institutions were net selling last quarter (0 increased, 1 reduced); the stock trades below the aggregate whale cost basis of $34.47. Top tracked holders include Turtle Creek Asset Management.
Continue to the live ATS dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Turtle Creek Asset Management 13F portfolio Turtle Creek Asset Management holdings | $138.1M | 4.9M | Reduced |
Ownership concentration
Reported ownership of ATS is highly concentrated across tracked institutions.
- Single largest holder: 100.0% of reported ownership
- Top 5 holders: 100.0%
- Top 10 holders: 100.0%
Whale activity this quarter
Across 1 tracked institutions, 1 reduced. Net positioning is net selling.
- Turtle Creek Asset Management — Turtle Creek Asset Management ($138.1M) (▼ 13.2% qoq shares) · avg cost $34.47
Whale cost basis vs current price
The aggregate tracked cost basis is $34.47 versus a current price of $28.01, so ATS trades below its cost basis (-18.7%). Average unrealized P&L across tracked holders: -6%.
Sector positioning — Other
ATS sits within the Other sector alongside 670 other tracked names. Compare whale ownership across peers:
How to use this page
Values are reported public positions from tracked 13F filers and disclosures — not real-time ownership totals. Open the live ATS dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
Related stock holder pages
- BFH-PA whale holders — BREAD FINANCIAL HOLDINGS INC
- CIGI whale holders — COLLIERS INTERNATIONAL GROUP INC
- CE whale holders — CELANESE
- FISV whale holders — FISERV INC
- SUNB whale holders — SUNBELT RENTALS HOLDINGS INC
- KNSL whale holders — KINSALE CAPITAL GROUP INC
- FND whale holders — FLOOR & DECOR
- WSC whale holders — WILLSCOT HOLDINGS
Learn more in Whale Analyzer Academy
Deepen your read on ATS with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns ATS stock?
Whale Analyzer tracks 1 public institutional holders of ATS with a combined reported value of $138.1M. See the holder table above for the largest tracked positions.
Which top funds are buying ATS?
Tracked institutions were net selling last quarter — 1 reduced. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is ATS ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is ATS above or below the whale cost basis?
The aggregate tracked cost basis is $34.47 versus a current price of $28.01 (-18.7%).
What does 13F ownership mean for ATS?
Use the interactive ATS dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.