ATS Ownership | Who Owns ATS?
ATS Ownership Summary
ATS is owned by 49.63% institutional investors, 0.78% insiders, and 49.59% retail investors. Mason capital management is the largest institutional shareholder, holding 15.93% of ATS shares.
ATS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | ATS | 49.63% | 0.78% | 49.59% |
| Sector | Industrials Stocks | 47.66% | 12.52% | 39.82% |
| Industry | Industrial Machinery Stocks | 47.74% | 9.56% | 42.70% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Mason capital management | 15.56M | 15.93% | $407.77M |
| Royal bank of canada | 7.20M | 7.37% | $188.69M |
| Turtle creek asset management | 6.97M | 7.14% | $182.69M |
| Edgepoint investment group | 6.38M | 6.53% | $166.91M |
| Beutel, goodman | 6.33M | 6.48% | $165.66M |
| Vanguard group | 3.40M | 3.46% | $93.58M |
| Bank of montreal /can/ | 3.02M | 3.08% | $83.27M |
| Fairfax financial ltd/ can | 2.49M | 2.55% | $64.13M |
| Connor, clark & lunn investment management | 2.49M | 2.53% | $68.47M |
| Ack asset management | 1.85M | 1.89% | $48.37M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Mason capital management | 15.56M | 82.99% | $407.77M |
| Ack asset management | 1.85M | 6.05% | $48.37M |
| Turtle creek asset management | 6.97M | 5.51% | $182.69M |
| Galibier capital management | 447.45K | 3.90% | $11.71M |
| Fairfax financial ltd/ can | 2.49M | 3.11% | $64.13M |
| Scheer, rowlett & associates investment management | 1.23M | 2.32% | $33.79M |
| Hill city capital, lp | 1.65M | 1.83% | $43.23M |
| Foresight group ltd liability partnership | 388.89K | 1.52% | $10.19M |
| Edgepoint investment group | 6.38M | 1.25% | $166.91M |
| Front street capital management | 289.77K | 1.17% | $7.59M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Bank of montreal /can/ | 3.02M | 0.03% | 1.88M |
| Norges bank | 1.08M | 0.00% | 1.08M |
| Van lanschot kempen investment management | 815.68K | 0.27% | 590.10K |
| Connor, clark & lunn investment management | 2.49M | 0.18% | 432.17K |
| Hill city capital, lp | 1.65M | 1.83% | 425.00K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Capital world investors | - | - | -1.20M |
| Turtle creek asset management | 6.97M | 5.51% | -617.53K |
| Moore capital management, lp | - | - | -611.12K |
| Nicola wealth management | - | - | -523.30K |
| Beutel, goodman | 6.33M | 1.00% | -503.80K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Norges bank | 1.08M | 0.00% | 1.08M | $29.73M |
| Colony group | 181.99K | 0.01% | 181.99K | $4.77M |
| Sei investments | 98.74K | 0.00% | 98.74K | $2.72M |
| Public sector pension investment board | 61.91K | 0.01% | 61.91K | $1.62M |
| Blackstone | 49.50K | 0.01% | 49.50K | $1.30M |
Sold Out
| Holder | Change |
|---|---|
| Bogart wealth | -1.00 |
| Us bancorp \de\ | -38.00 |
| Northwestern mutual wealth management | -46.00 |
| Salem investment counselors | -47.00 |
| Geneos wealth management | -57.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 31, 2025 | 89 | -27.05% | 48,665,808 | -41.74% | 49 | 0.68% | 45 | -15.09% | 34 | -32.00% |
| Sep 30, 2025 | 118 | -13.24% | 82,593,526 | -4.00% | 84 | 1.10% | 52 | -25.71% | 49 | -3.92% |
| Jun 30, 2025 | 135 | 3.05% | 86,037,594 | -0.34% | 87 | 1.13% | 70 | -2.78% | 51 | 18.60% |
| Mar 31, 2025 | 131 | -4.38% | 86,328,006 | 0.59% | 88 | 1.17% | 72 | 4.35% | 43 | -12.24% |
| Dec 31, 2024 | 137 | - | 85,819,480 | 7.33% | 86 | 1.33% | 69 | -8.00% | 49 | 16.67% |
ATS Ownership FAQ
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