ATS CORP (ATS) Institutional Ownership Changes & 13F Activity
ATS CORP (ATS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Turtle Creek Asset Management, Fil Ltd, Janus Henderson Group Plc, Mason Capital Management Llc, and Mirae Asset Global Etfs Holdings Ltd..
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Wells Fargo & Company/Mn | Buy | +796 | +112.0% | 1,507 | $42.40K | Q1 2026 | Jul 08, 2026 |
| Western Wealth Management, Llc | Buy | +236 | — | 236 | $6.66K | Q1 2026 | May 19, 2026 |
| Bank Of America Corp | Sell | -154,506 | -14.0% | 945,875 | $26.67M | Q1 2026 | May 18, 2026 |
| Turtle Creek Asset Management | Buy | +4,743,767 | +84.1% | 10,385,819 | $292.88M | Q1 2026 | May 15, 2026 |
| Fil Ltd | Buy | +1,724,612 | +3219.4% | 1,778,181 | $50.09M | Q1 2026 | May 15, 2026 |
| Janus Henderson Group Plc | Buy | +1,435,375 | +166.5% | 2,297,214 | $64.54M | Q1 2026 | May 15, 2026 |
| Mason Capital Management Llc | Buy | +840,602 | +5.4% | 16,404,170 | $462.60M | Q1 2026 | May 15, 2026 |
| Mirae Asset Global Etfs Holdings Ltd. | Sell | -383,522 | -33.6% | 758,313 | $21.31M | Q1 2026 | May 15, 2026 |
| Beutel, Goodman & Co Ltd. | Sell | -382,389 | -6.6% | 5,454,749 | $153.26M | Q1 2026 | May 15, 2026 |
| Edgepoint Investment Group Inc. | Buy | +279,327 | +4.1% | 7,168,112 | $202.08M | Q1 2026 | May 15, 2026 |
| Goldman Sachs Group Inc | Sell | -233,126 | -81.7% | 52,251 | $1.47M | Q1 2026 | May 15, 2026 |
| National Bank Of Canada | Buy | +229,950 | +55.0% | 648,282 | $18.11M | Q1 2026 | May 15, 2026 |
| Arrowmark Colorado Holdings Llc | Buy | +174,000 | — | 174,000 | $4.91M | Q1 2026 | May 15, 2026 |
| Fmr Llc | Buy | +159,706 | +7.5% | 2,277,472 | $64.19M | Q1 2026 | May 15, 2026 |
| Candelo Capital Management Lp | Buy | +126,988 | +514.1% | 151,688 | $4.27M | Q1 2026 | May 15, 2026 |
| Royal Bank Of Canada | Buy | +117,291 | +1.5% | 7,761,838 | $218.88M | Q1 2026 | May 15, 2026 |
| Morgan Stanley | Buy | +78,899 | +367.1% | 100,390 | $2.83M | Q1 2026 | May 15, 2026 |
| D. E. Shaw & Co., Inc. | Sell | -77,900 | -72.1% | 30,200 | $850.98K | Q1 2026 | May 15, 2026 |
| Citadel Advisors Llc | Sell | -67,601 | -45.4% | 81,239 | $2.29M | Q1 2026 | May 15, 2026 |
| Van Lanschot Kempen Investment Management N.V. | Buy | +48,455 | +5.9% | 863,486 | $33.86M | Q1 2026 | May 15, 2026 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | Sell | -33,189 | -51.3% | 31,450 | $883.63K | Q1 2026 | May 15, 2026 |
| Balyasny Asset Management L.P. | Buy | +14,124 | — | 14,124 | $398.30K | Q1 2026 | May 15, 2026 |
| Engineers Gate Manager Lp | Buy | +13,052 | — | 13,052 | $367.99K | Q1 2026 | May 15, 2026 |
| Lazard Asset Management Llc | Buy | +11,486 | +19.7% | 69,912 | $1.97M | Q1 2026 | May 15, 2026 |
| Toronto Dominion Bank | Buy | +11,265 | +13.8% | 93,175 | $2.63M | Q1 2026 | May 15, 2026 |
| Numerai Gp Llc | Buy | +11,233 | +68.9% | 27,538 | $776.57K | Q1 2026 | May 15, 2026 |
| Van Eck Associates Corp | Buy | +10,700 | +78.8% | 24,271 | $684.00K | Q1 2026 | May 15, 2026 |
| Marshall Wace, Llp | Buy | +9,920 | — | 9,920 | $279.74K | Q1 2026 | May 15, 2026 |
| Geode Capital Management, Llc | Buy | +9,543 | +16.1% | 68,798 | $1.97M | Q1 2026 | May 15, 2026 |
| Brevan Howard Capital Management Lp | Buy | +8,424 | — | 8,424 | $237.56K | Q1 2026 | May 15, 2026 |
Frequently asked questions about ATS activity
Which institutional owners are buying ATS?
Institutional owners buying ATS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ATS activity?
"Buy" means an investor increased their reported position in ATS compared to the prior reporting period. This reflects growing exposure to ATS CORP (ATS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ATS increasing?
Institutional interest in ATS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related ATS Institutional Insights
- ATS Overview
- ATS 13F Institutional Holders
- ATS Superinvestors
- Industrials Sector Institutional Ownership
- Industrials Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Industrials Stocks By Institutional Investors
- Most Sold Industrials Stocks By Institutional Investors
- ATS Insider Trading & SEC Form 4 Activity
- ATS Articles
- Top Institutional Investor Stock Rankings