ATS ATS CORPORATION
COMMON
CUSIP: 00217Y104
FIGI: BBG000BBH2L6
Institutional Holders122
Total Institutional Value$2,154,336,097
Total Shares Held84,352,314
Avg Position$17,658,493
Top 5 Holders %50.0%
Alpha-Weighted Score76.3
New Positions+18
Exited Positions-15
Top 15 Institutional Holders by Value
■ New ■ Increased ■ Decreased ■ Unchanged
Institutional Holders — Q4 25
| Manager | Alpha | Flow | Value | Shares | Change |
|---|---|---|---|---|---|
| MASON CAPITAL MANAGEMENT LLC | Elite Conviction | Minimal Flow | $428,620,663 (19.9%) | 15,563,568 | 5.1% |
| ROYAL BANK OF CANADA | High Conviction | Market Mover | $210,529,000 (9.8%) | 7,644,547 | -63.7% |
| EDGEPOINT INVESTMENT MANAGEMENT INC | Elite Conviction | Low Flow | $189,771,064 (8.8%) | 6,888,785 | 13.7% |
| TURTLE CREEK ASSET MANAGEMENT INC. | Elite Conviction | Low Flow | $155,382,112 (7.2%) | 5,642,052 | -15.0% |
| VANGUARD GROUP INC | High Conviction | Market Mover | $93,581,732 (4.3%) | 3,397,166 | 7.1% |
| BANK OF MONTREAL /CAN/ | High Conviction | Market Mover | $83,268,626 (3.9%) | 3,022,693 | 158.3% |
| HER MAJESTY THE QUEEN IN RIGHT OF THE PROVINCE OF ALBERTA AS REPRESENTED BY ALBERTA INVESTMENT MANAGEMENT CORP | High Conviction | Significant Flow | $73,836,170 (3.4%) | 2,680,530 | 60.0% |
| CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. | High Conviction | Significant Flow | $68,473,928 (3.2%) | 2,485,638 | 27.5% |
| FAIRFAX FINANCIAL HOLDINGS LTD/ CAN | Elite Conviction | Low Flow | $68,282,019 (3.2%) | 2,486,400 | 6.5% |
| FMR LLC | High Conviction | Market Mover | $58,338,663 (2.7%) | 2,117,766 | 62.1% |
| ACK ASSET MANAGEMENT LLC | Elite Conviction | Minimal Flow | $50,844,238 (2.4%) | 1,846,196 | 5.1% |
| HILL CITY CAPITAL, LP | Elite Conviction | Low Flow | $45,437,062 (2.1%) | 1,649,857 | 5.1% |
| Invesco Ltd. | Moderate Conviction | Market Mover | $35,036,994 (1.6%) | 1,272,222 | 11.8% |
| SCHEER, ROWLETT & ASSOCIATES INVESTMENT MANAGEMENT LTD. | Elite Conviction | Minimal Flow | $33,786,034 (1.6%) | 1,226,450 | 6.1% |
| TD ASSET MANAGEMENT INC | High Conviction | Significant Flow | $32,912,781 (1.5%) | 1,193,208 | 6.4% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS LTD. | High Conviction | Significant Flow | $31,495,737 (1.5%) | 1,141,835 | 8.5% |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. | High Conviction | Moderate Flow | $30,816,322 (1.4%) | 815,031 | 3.8% |
| CLEARBRIDGE INVESTMENTS, LLC | High Conviction | Significant Flow | $30,610,300 (1.4%) | 1,111,485 | 3.4% |
| BANK OF AMERICA CORP /DE/ | Moderate Conviction | Market Mover | $30,304,491 (1.4%) | 1,100,381 | -53.8% |
| MARATHON ASSET MGMT LTD | High Conviction | Low Flow | $30,277,826 (1.4%) | 1,097,711 | - |
| NORGES BANK | High Conviction | Market Mover | $29,726,586 (1.4%) | 1,079,090 | - |
| TD WATERHOUSE CANADA INC. | High Conviction | Significant Flow | $26,496,242 (1.2%) | 966,349 | -29.1% |
| PRINCIPAL FINANCIAL GROUP INC | High Conviction | Market Mover | $24,224,881 (1.1%) | 878,240 | 5.9% |
| JANUS HENDERSON GROUP PLC | High Conviction | Market Mover | $23,772,187 (1.1%) | 861,839 | - |
| GOODMAN & COMPANY, INVESTMENT COUNSEL LTD. | High Conviction | Significant Flow | $22,543,115 (1.0%) | 818,559 | 16.5% |
| MACKENZIE FINANCIAL CORP | High Conviction | Significant Flow | $21,053,897 (1.0%) | 758,980 | -29.3% |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | High Conviction | Significant Flow | $20,758,913 (1.0%) | 753,492 | 5.3% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | High Conviction | Market Mover | $15,385,910 (0.7%) | 558,675 | 3.1% |
| LEGAL & GENERAL GROUP PLC | High Conviction | Market Mover | $14,930,278 (0.7%) | 542,023 | 15.3% |
| NATIONAL BANK OF CANADA /FI/ | Moderate Conviction | Market Mover | $11,468,526 (0.5%) | 418,332 | 6.0% |
| AGF MANAGEMENT LTD | High Conviction | Significant Flow | $11,022,763 (0.5%) | 400,140 | -14.0% |
| CIBC WORLD MARKETS INC. | High Conviction | Significant Flow | $9,754,601 (0.5%) | 354,069 | - |
| PUBLIC SECTOR PENSION INVESTMENT BOARD | High Conviction | Significant Flow | $7,929,064 (0.4%) | 287,829 | 389.5% |
| GOLDMAN SACHS GROUP INC | High Conviction | Market Mover | $7,859,283 (0.4%) | 285,377 | -40.9% |
| MONTRUSCO BOLTON INVESTMENTS INC. | Elite Conviction | Moderate Flow | $7,024,978 (0.3%) | 254,681 | -5.4% |
| SCHWAB CHARLES INVESTMENT MANAGEMENT INC | High Conviction | Market Mover | $6,518,849 (0.3%) | 236,332 | -40.9% |
| UBS Group AG | Moderate Conviction | Market Mover | $6,300,436 (0.3%) | 228,774 | 3.8% |
| DIXON MITCHELL INVESTMENT COUNSEL INC. | High Conviction | Low Flow | $5,820,795 (0.3%) | 211,025 | - |
| LOUISBOURG INVESTMENTS INC. | High Conviction | Low Flow | $5,713,983 (0.3%) | 207,130 | - |
| GRANITE INVESTMENT PARTNERS, LLC | High Conviction | Low Flow | $5,614,745 (0.3%) | 203,876 | 4.1% |
| SCOTIA CAPITAL INC. | High Conviction | Moderate Flow | $5,346,463 (0.2%) | 195,019 | - |
| FIRST TRUST ADVISORS LP | High Conviction | Market Mover | $5,072,223 (0.2%) | 184,128 | 30.4% |
| COLONY GROUP, LLC | High Conviction | Significant Flow | $5,011,592 (0.2%) | 181,975 | 5.1% |
| POLAR SECURITIES INC. | High Conviction | Moderate Flow | $4,959,953 (0.2%) | 180,000 | NEW |
| SWISS NATIONAL BANK | High Conviction | Market Mover | $4,538,028 (0.2%) | 164,400 | 8.3% |
| ROYCE & ASSOCIATES LP | High Conviction | Moderate Flow | $4,531,525 (0.2%) | 164,500 | 28.8% |
| CITADEL ADVISORS LLC | Moderate Conviction | Market Mover | $4,099,054 (0.2%) | 148,840 | 85.6% |
| TAL INVESTMENT COUNSEL LTD | High Conviction | Significant Flow | $3,624,599 (0.2%) | 131,500 | 2.9% |
| FEDERATION DES CAISSES DESJARDINS DU QUEBEC | High Conviction | Significant Flow | $3,198,004 (0.1%) | 116,404 | -36.6% |
| DIMENSIONAL FUND ADVISORS LP | High Conviction | Market Mover | $3,039,287 (0.1%) | 110,342 | 30.0% |
| SHAW D E & CO INC | Moderate Conviction | Market Mover | $2,978,185 (0.1%) | 108,100 | -47.7% |
| SEI INVESTMENTS CO | High Conviction | Market Mover | $2,719,355 (0.1%) | 98,742 | NEW |
| TORONTO DOMINION BANK | High Conviction | Significant Flow | $2,257,270 (0.1%) | 81,910 | 4.4% |
| CANOE FINANCIAL LP | High Conviction | Moderate Flow | $2,220,398 (0.1%) | 80,600 | 7.6% |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | High Conviction | Market Mover | $2,109,665 (0.1%) | 76,426 | 5.4% |
| MILLENNIUM MANAGEMENT, L.L.C. | Moderate Conviction | Market Mover | $2,089,708 (0.1%) | 75,879 | 82.0% |
| AYAL CAPITAL ADVISORS LTD | High Conviction | Minimal Flow | $1,988,388 (0.1%) | 72,200 | NEW |
| FIERA SCEPTRE INC. | High Conviction | Moderate Flow | $1,956,690 (0.1%) | 71,007 | -19.7% |
| ZURCHER KANTONALBANK | High Conviction | Significant Flow | $1,782,969 (0.1%) | 64,639 | -25.6% |
| Nuveen, LLC | High Conviction | Market Mover | $1,726,282 (0.1%) | 62,584 | 5.4% |
| CALDWELL INVESTMENT MANAGEMENT LTD. | High Conviction | Minimal Flow | $1,688,773 (0.1%) | 60,800 | 5.4% |
| GEODE CAPITAL MANAGEMENT, LLC | High Conviction | Market Mover | $1,665,502 (0.1%) | 59,255 | 26.2% |
| LAZARD ASSET MANAGEMENT LLC | High Conviction | Significant Flow | $1,609,052 (0.1%) | 58,426 | NEW |
| SIG NORTH TRADING, ULC | High Conviction | Low Flow | $1,532,381 (0.1%) | 55,642 | 62.5% |
| FIL LTD | High Conviction | Significant Flow | $1,474,525 (0.1%) | 53,569 | NEW |
| AVISO FINANCIAL INC. | High Conviction | Low Flow | $1,424,934 (0.1%) | 51,725 | 4.2% |
| GUARDIAN CAPITAL LP | High Conviction | Low Flow | $1,298,164 (0.1%) | 47,063 | NEW |
| BRITISH COLUMBIA INVESTMENT MANAGEMENT CORP | High Conviction | Moderate Flow | $1,205,300 (0.1%) | 43,753 | -3.6% |
| BANK OF NOVA SCOTIA TRUST CO | High Conviction | Low Flow | $840,356 (0.0%) | 30,514 | 27.9% |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | High Conviction | Significant Flow | $750,656 (0.0%) | 27,215 | 5.4% |
| FRANKLIN RESOURCES INC | High Conviction | Market Mover | $699,329 (0.0%) | 25,386 | 68.9% |
| CITIGROUP INC | Moderate Conviction | Market Mover | $693,696 (0.0%) | 25,149 | 61.2% |
| CANDELO CAPITAL MANAGEMENT LP | High Conviction | Minimal Flow | $680,238 (0.0%) | 24,700 | NEW |
| JANE STREET GROUP, LLC | Moderate Conviction | Market Mover | $607,930 (0.0%) | 22,063 | NEW |
| MORGAN STANLEY | Moderate Conviction | Market Mover | $591,874 (0.0%) | 21,491 | -67.6% |
| STANDARD LIFE ABERDEEN PLC | High Conviction | Significant Flow | $550,993 (0.0%) | 20,007 | 12.6% |
| PENDERFUND CAPITAL MANAGEMENT LTD. | High Conviction | Low Flow | $550,945 (0.0%) | 20,000 | 5.3% |
| NUMERAI, LLC | High Conviction | Low Flow | $449,040 (0.0%) | 16,305 | NEW |
| PICTET ASSET MANAGEMENT HOLDING SA | High Conviction | Market Mover | $441,501 (0.0%) | 16,006 | 8.6% |
| STIFEL FINANCIAL CORP | High Conviction | Market Mover | $346,813 (0.0%) | 12,593 | 9.2% |
| MARINER, LLC | High Conviction | Market Mover | $335,079 (0.0%) | 12,167 | 41.7% |
| TRUE PRIVATE WEALTH ADVISORS | High Conviction | Low Flow | $332,683 (0.0%) | 12,080 | 5.1% |
| SAVANT CAPITAL, LLC | High Conviction | Moderate Flow | $313,185 (0.0%) | 11,372 | NEW |
| XTX TOPCO LTD | Moderate Conviction | Moderate Flow | $293,026 (0.0%) | 10,640 | -17.9% |
| NORTHWEST & ETHICAL INVESTMENTS L.P. | High Conviction | Moderate Flow | $290,719 (0.0%) | 10,553 | 29.0% |
| DEUTSCHE BANK AG\\ | Moderate Conviction | Market Mover | $282,588 (0.0%) | 10,261 | - |
| INVESTMENT MANAGEMENT CORP OF ONTARIO | High Conviction | Moderate Flow | $278,595 (0.0%) | 10,116 | NEW |
| ROCKEFELLER CAPITAL MANAGEMENT L.P. | High Conviction | Market Mover | $270,042 (0.0%) | 9,790 | -64.1% |
| VERITION FUND MANAGEMENT LLC | High Conviction | Significant Flow | $253,148 (0.0%) | 9,192 | NEW |
| ALLIANCEBERNSTEIN L.P. | High Conviction | Market Mover | $246,758 (0.0%) | 8,960 | -4.1% |
| CAMPBELL & CO INVESTMENT ADVISER LLC | High Conviction | Moderate Flow | $242,490 (0.0%) | 8,805 | NEW |
| RUSSELL INVESTMENTS GROUP, LTD. | Moderate Conviction | Market Mover | $235,257 (0.0%) | 8,529 | -72.8% |
| ENVESTNET ASSET MANAGEMENT INC | High Conviction | Significant Flow | $210,401 (0.0%) | 7,634 | -54.9% |
| BEUTEL, GOODMAN & CO LTD. | High Conviction | Minimal Flow | $161,008 (0.0%) | 5,837,138 | -2.8% |
| BARCLAYS PLC | High Conviction | Market Mover | $144,970 (0.0%) | 5,264 | 22.7% |
| WOLVERINE ASSET MANAGEMENT LLC | Moderate Conviction | Significant Flow | $82,645 (0.0%) | 3,000 | -4.2% |
| SMARTLEAF ASSET MANAGEMENT LLC | High Conviction | Moderate Flow | $29,246 (0.0%) | 1,052 | NEW |
| THRIVENT TRUST CO OF TENNESSEE, INC. | High Conviction | Moderate Flow | $20,187 (0.0%) | 733 | NEW |
| WELLS FARGO & COMPANY/MN | Moderate Conviction | Market Mover | $19,581 (0.0%) | 711 | 18.3% |
| HILLSDALE INVESTMENT MANAGEMENT INC. | High Conviction | Moderate Flow | $16,558 (0.0%) | 600 | NEW |
Implied Institutional Price History
Estimated from 13F aggregate market value ÷ shares reported across all institutional filers. Reflects quarter-end snapshot, not actual trade prices.
| Quarter | Filers | Institutional Value | Shares Held | Est. Avg Price |
|---|---|---|---|---|
| Q4 25 | 121 | $2.15B | 84,352,652 | $25.54 |
| Q3 25 | 118 | $2.49B | 100,418,105 | $24.84 |
| Q2 25 | 132 | $2.56B | 88,133,760 | $29.07 |
| Q1 25 | 123 | $2.04B | 96,416,731 | $21.18 |
| Q4 24 | 130 | $2.50B | 89,268,248 | $27.97 |
| Q3 24 | 130 | $2.37B | 83,319,395 | $28.42 |
| Q2 24 | 132 | $2.87B | 90,166,090 | $31.80 |
| Q1 24 | 136 | $2.94B | 84,882,571 | $34.69 |
Source: SEC 13F-HR filings. Implied price = aggregate market value ÷ shares reported. Not investment advice.