Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
237 institutional managers reported holding ASGN for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 61%. 38 opened new positions; 70 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 6.67M | 16.11% | $258.4M | added +18.5% | ≤2013 |
| Vanguard Group | 5.42M | 13.08% | $209.8M | added +4.6% | ≤2013 |
| AQR Capital | 2.53M | 6.11% | $98.0M | added +174.3% | 2017 Q3 |
| Dimensional Fund Advisors | 1.90M | 4.58% | $73.4M | added +6.8% | ≤2013 |
| Invesco | 1.79M | 4.33% | $69.5M | added +9.5% | ≤2013 |
| State Street | 1.74M | 4.21% | $67.5M | added +5.4% | ≤2013 |
| Reinhart Partners, LLC. | 1.65M | 3.99% | $64.0M | added +36.8% | 2023 Q1 |
| Geode Capital | 1.37M | 3.31% | $53.1M | added +3.7% | ≤2013 |
| Pathstone Holdings, LLC | 1.20M | 2.90% | $46.6M | added +29.3% | 2018 Q3 |
| Nomura Asset Management International INC. | 1.10M | 2.66% | $42.7M | trimmed -11.4% | 2025 Q4 |
| Bamco INC /NY/ | 1.06M | 2.56% | $41.1M | trimmed -19.1% | ≤2013 |
| Goldman Sachs | 892.0k | 2.15% | $34.6M | added +40.4% | ≤2013 |
| Schroder Investment Management Group | 887.7k | 2.14% | $34.4M | added +22.3% | ≤2013 |
| Morgan Stanley | 696.4k | 1.68% | $27.0M | added +35.3% | ≤2013 |
| FMR (Fidelity) | 691.8k | 1.67% | $26.8M | added +10.3% | 2016 Q3 |
| Hotchkis & Wiley Capital Management LLC | 686.1k | 1.66% | $26.6M | trimmed -3.5% | 2024 Q2 |
| Charles Schwab Investment Management | 579.6k | 1.40% | $22.5M | added +17.6% | ≤2013 |
| D. E. Shaw | 577.9k | 1.40% | $22.4M | trimmed -37% | 2021 Q4 |
| Systematic Financial Management LP | 544.6k | 1.31% | $21.1M | added +12.4% | ≤2013 |
| Ameriprise Financial INC | 544.5k | 1.31% | $21.1M | added +18% | ≤2013 |
| Allianz Asset Management GmbH | 514.0k | 1.24% | $19.9M | added +38.8% | 2023 Q4 |
| Point72 | 504.6k | 1.22% | $19.5M | opened | 2026 Q1 |
| Northern Trust | 481.9k | 1.16% | $18.7M | trimmed -11.2% | ≤2013 |
| FIL LTD | 466.0k | 1.13% | $18.1M | added +86.4% | 2020 Q4 |
| Incline Global Management LLC (focused) | 439.7k | 1.06% | $17.0M | added +35% | 2025 Q3 |
| Boston Partners | 390.0k | 0.94% | $15.1M | added +580.2% | 2025 Q3 |
| Bank OF America CORP /DE/ | 364.1k | 0.88% | $14.1M | added +13.2% | ≤2013 |
| Aristotle Capital Boston, LLC | 349.4k | 0.84% | $13.5M | trimmed -12.6% | 2014 Q4 |
| Prudential Financial INC | 335.8k | 0.81% | $13.0M | added +16.5% | ≤2013 |
| Principal Financial Group INC | 286.4k | 0.69% | $11.1M | added +78.3% | ≤2013 |
| SEI Investments CO | 266.3k | 0.64% | $10.3M | added +60.1% | ≤2013 |
| BNY Mellon | 251.0k | 0.61% | $9.7M | trimmed -10% | ≤2013 |
| UBS | 240.9k | 0.58% | $9.3M | added +28.3% | ≤2013 |
| Deutsche Bank AG\ | 240.8k | 0.58% | $9.3M | added +1.7% | 2013 Q3 |
| Glenmede Trust CO NA | 209.8k | 0.51% | $8.1M | trimmed -7.7% | 2013 Q4 |
| Citigroup INC | 202.4k | 0.49% | $7.8M | trimmed -4% | ≤2013 |
| Federated Hermes, INC. | 183.3k | 0.44% | $7.1M | trimmed -13.4% | 2017 Q3 |
| BNP Paribas Financial Markets | 180.6k | 0.44% | $7.0M | added +1309.4% | 2014 Q2 |
| Victory Capital Management INC | 154.8k | 0.37% | $6.0M | added +11.9% | 2015 Q2 |
| Public Sector Pension Investment Board | 152.8k | 0.37% | $5.9M | opened | 2026 Q1 |
| Two Sigma | 138.7k | 0.34% | $5.4M | trimmed -37.2% | 2025 Q3 |
| Bessemer Group INC | 128.5k | 0.31% | $5.0M | added +39.7% | 2016 Q2 |
| Congress Asset Management CO | 125.3k | 0.30% | $4.9M | added +41% | 2025 Q3 |
| Russell Investments Group, LTD. | 120.9k | 0.29% | $4.7M | added +92.1% | 2016 Q4 |
| Voloridge Investment Management | 107.9k | 0.26% | $4.2M | trimmed -66.4% | 2024 Q4 |
| Barclays PLC | 103.5k | 0.25% | $4.0M | trimmed -49% | 2016 Q3 |
| Nuveen | 101.0k | 0.24% | $3.9M | added +3.7% | 2019 Q2 |
| Legal & General Group PLC | 99.0k | 0.24% | $3.8M | added +47.1% | 2014 Q3 |
| First Trust Advisors LP | 98.3k | 0.24% | $3.8M | added +9.9% | ≤2013 |
| Man Group | 94.9k | 0.23% | $3.7M | added +475.1% | 2025 Q4 |
Largest 50 of 237 shown; the full ranked, searchable register is at boothcheck.com/holders/ASGN. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.