ATS Corp
122 hedge funds and large institutions have $2.3B invested in ATS Corp in 2025 Q4 according to their latest regulatory filings, with 24 funds opening new positions, 41 increasing their positions, 41 reducing their positions, and 14 closing their positions.
71% more first-time investments, than exits
New positions opened: 24 | Existing positions closed: 14
5% more funds holding
Funds holding: 116 → 122 (+6)
5% more capital invested
Capital invested by funds: $2.2B → $2.3B (+$101M)
0% more funds holding in top 10
Funds holding in top 10: 4 → 4 (0)
0% more repeat investments, than reductions
Existing positions increased: 41 | Existing positions reduced: 41
0.64% less ownership
Funds ownership: 85.42% → 84.78% (-0.64%)
62% less call options, than puts
Call options by funds: $724K | Put options by funds: $1.89M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Bank of Montreal
Toronto,
Ontario, Canada
|
+$50.2M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
+$19.8M |
| 3 |
EIG
EdgePoint Investment Group
Toronto,
Ontario, Canada
|
+$13.6M |
| 4 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
+$11.8M |
| 5 |
Connor, Clark & Lunn Investment Management (CC&L)
Vancouver,
British Columbia, Canada
|
+$11.5M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
TCAM
Turtle Creek Asset Management
Toronto,
Ontario, Canada
|
-$35.5M |
| 2 |
BGC
Beutel, Goodman & Co
Toronto,
Ontario, Canada
|
-$13.2M |
| 3 |
TWC
TD Waterhouse Canada
Toronto,
Ontario, Canada
|
-$12.4M |
| 4 |
FG
Foresight Group
London,
United Kingdom
|
-$10.2M |
| 5 |
Mackenzie Financial
Toronto Ontario,
Ontario, Canada
|
-$10.1M |
ATS Hedge Fund Activity: Q4 2025 in Review
122 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in ATS Corp (ATS) for Q4 2025, worth a combined $2.3B — up 4.6% from $2.2B a quarter earlier.
Buyers outnumbered sellers: 24 funds opened new ATS positions and 14 closed out — a net gain of 10 holders — while 41 added to existing stakes and 41 trimmed.
The largest buyer was Bank of Montreal, adding an estimated $50.2M. The largest seller was Turtle Creek Asset Management, cutting an estimated $35.5M.
- 122 institutional investors held ATS Corp (ATS) as of Q4 2025, up from 116 in Q3 2025.
- Funds reported $2.3B of ATS Corp stock for Q4 2025, up 4.6% quarter-over-quarter.
- 24 funds opened new ATS Corp positions in Q4 2025 and 14 closed out, a net change of +10 holders.
- The largest ATS Corp buyer in Q4 2025 was Bank of Montreal, an estimated $50.2M added.
- The largest ATS Corp seller in Q4 2025 was Turtle Creek Asset Management, an estimated $35.5M sold.
Based on aggregated 13F filings for Q4 2025.