Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
321 institutional managers reported holding UNF for the quarter ended Mar 31, 2026. Together they hold about 82% of shares outstanding; the top 10 hold 44%. 68 opened new positions; 60 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 2.14M | 11.78% | $536.2M | added +1.2% | ≤2013 |
| Vanguard Group | 1.59M | 8.76% | $399.0M | unchanged | ≤2013 |
| London CO OF Virginia | 775.3k | 4.27% | $194.5M | trimmed -7.2% | 2018 Q2 |
| Dimensional Fund Advisors | 744.5k | 4.10% | $186.8M | trimmed -5.5% | ≤2013 |
| State Street | 567.9k | 3.13% | $142.5M | unchanged | ≤2013 |
| Millennium Management | 529.6k | 2.92% | $132.9M | added +1624% | 2017 Q2 |
| River Road Asset Management, LLC | 499.9k | 2.75% | $125.4M | trimmed -42.2% | ≤2013 |
| Kayne Anderson Rudnick Investment Management LLC | 380.0k | 2.10% | $95.4M | trimmed -32% | 2019 Q3 |
| First Trust Advisors LP | 378.8k | 2.09% | $95.1M | trimmed -16% | ≤2013 |
| Geode Capital | 356.9k | 1.97% | $89.6M | trimmed -0.6% | ≤2013 |
| Balyasny Asset Management | 335.4k | 1.85% | $84.2M | added +425.2% | 2025 Q4 |
| T. Rowe Price | 331.5k | 1.83% | $83.2M | added +1831.5% | ≤2013 |
| Brandes Investment Partners, LP | 274.5k | 1.51% | $68.9M | trimmed -25.4% | 2023 Q2 |
| Westchester Capital Management, LLC | 258.5k | 1.43% | $64.9M | opened | 2026 Q1 |
| Charles Schwab Investment Management | 226.4k | 1.25% | $56.8M | added +3.2% | ≤2013 |
| Alpine Associates Management INC. | 217.1k | 1.20% | $54.5M | opened | 2026 Q1 |
| Northern Trust | 187.6k | 1.03% | $47.1M | trimmed -4% | ≤2013 |
| Morgan Stanley | 173.6k | 0.96% | $43.6M | added +58.9% | ≤2013 |
| Magnetar Financial LLC | 171.9k | 0.95% | $43.1M | opened | 2026 Q1 |
| Citigroup INC | 161.1k | 0.89% | $40.4M | added +2594.5% | ≤2013 |
| AQR Capital | 152.2k | 0.84% | $38.2M | added +315.4% | ≤2013 |
| Bank OF America CORP /DE/ | 151.9k | 0.84% | $38.1M | added +16% | ≤2013 |
| Natixis Advisors, LLC | 149.1k | 0.82% | $37.4M | trimmed -5.1% | 2019 Q1 |
| Jones Financial Companies Lllp | 143.2k | 0.79% | $35.9M | added +41515.1% | 2024 Q2 |
| Qube Research & Technologies LTD | 141.4k | 0.78% | $35.5M | added +208.8% | 2023 Q1 |
| UBS | 129.3k | 0.71% | $32.4M | added +76.7% | ≤2013 |
| Envestnet Asset Management INC | 125.1k | 0.69% | $31.4M | trimmed -3.2% | 2016 Q4 |
| TIG Advisors, LLC | 117.9k | 0.65% | $29.6M | opened | 2026 Q1 |
| BNY Mellon | 112.9k | 0.62% | $28.3M | trimmed -2.3% | ≤2013 |
| Tweedy, Browne | 101.7k | 0.56% | $25.5M | unchanged | 2025 Q4 |
| Goldman Sachs | 100.0k | 0.55% | $25.1M | added +60% | ≤2013 |
| Sirios Capital Management L P | 98.5k | 0.54% | $24.7M | opened | 2026 Q1 |
| Principal Financial Group INC | 92.8k | 0.51% | $23.3M | added +7.3% | ≤2013 |
| Copeland Capital Management, LLC | 85.1k | 0.47% | $21.4M | trimmed -71.2% | 2020 Q2 |
| Verition Fund Management | 85.0k | 0.47% | $21.3M | added +1751.2% | 2024 Q3 |
| Public Sector Pension Investment Board | 84.9k | 0.47% | $21.3M | added +68.6% | ≤2013 |
| Empyrean Capital Partners, LP | 81.0k | 0.45% | $20.3M | opened | 2026 Q1 |
| Susquehanna International Group | 80.1k | 0.44% | $20.1M | added +109.8% | 2016 Q3 |
| Engine Capital Management, LP (focused) | 74.0k | 0.41% | $18.6M | trimmed -83.9% | 2025 Q2 |
| Melqart Asset Management (UK) LTD (focused) | 73.8k | 0.41% | $18.5M | opened | 2026 Q1 |
| Wells Fargo & COMPANY/MN | 70.8k | 0.39% | $17.8M | trimmed -31.7% | ≤2013 |
| Man Group | 68.0k | 0.38% | $17.1M | opened | 2021 Q2 |
| TimesSquare Capital Management, LLC | 67.9k | 0.37% | $17.0M | trimmed -31.6% | 2025 Q3 |
| T. Rowe Price Investment Management, INC. | 66.5k | 0.37% | $16.7M | trimmed -9.1% | 2022 Q4 |
| Squarepoint Ops LLC | 61.0k | 0.34% | $15.3M | added +235.5% | 2024 Q2 |
| Caxton Associates LLP | 60.3k | 0.33% | $15.1M | opened | 2026 Q1 |
| Absolute Gestao de Investimentos Ltda. | 58.0k | 0.32% | $14.5M | opened | 2026 Q1 |
| Cooper Creek Partners Management LLC | 57.1k | 0.32% | $14.3M | trimmed -80.5% | 2025 Q2 |
| Levin Capital Strategies, L.p. | 55.9k | 0.31% | $14.0M | added +119.1% | 2025 Q4 |
| Invesco | 55.4k | 0.30% | $13.9M | trimmed -4.6% | ≤2013 |
Largest 50 of 321 shown; the full ranked, searchable register is at boothcheck.com/holders/UNF. 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.