Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
539 institutional managers reported holding HSIC for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 57%. 64 opened new positions; 57 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| KKR (focused) | 15.65M | 13.49% | $1.15B | unchanged | 2025 Q1 |
| Vanguard Group | 11.51M | 9.92% | $848.2M | trimmed -0.7% | ≤2013 |
| BlackRock | 7.02M | 6.05% | $517.3M | added +0.9% | ≤2013 |
| Artisan Partners | 6.57M | 5.66% | $484.2M | trimmed -1.1% | 2023 Q3 |
| FMR (Fidelity) | 5.72M | 4.93% | $421.5M | added +44% | ≤2013 |
| Invesco | 4.89M | 4.21% | $360.0M | added +9.7% | ≤2013 |
| State Street | 4.38M | 3.77% | $322.6M | trimmed -0.5% | ≤2013 |
| American Century Companies INC | 3.59M | 3.10% | $264.8M | trimmed -1.9% | 2017 Q4 |
| Palestra Capital Management LLC (focused) | 3.41M | 2.94% | $251.4M | added +43.2% | 2024 Q4 |
| Southpoint Capital Advisors LP (focused) | 3.20M | 2.76% | $235.7M | added +28% | 2023 Q4 |
| Dimensional Fund Advisors | 2.87M | 2.48% | $211.6M | added +2% | ≤2013 |
| Geode Capital | 2.77M | 2.39% | $204.1M | added +1.3% | ≤2013 |
| Bank OF Montreal /CAN/ | 2.04M | 1.76% | $150.6M | trimmed -4.7% | ≤2013 |
| Fiduciary Management INC /WI/ | 1.95M | 1.68% | $143.9M | trimmed -14.8% | 2020 Q1 |
| Ameriprise Financial INC | 1.81M | 1.56% | $133.6M | trimmed -24.5% | ≤2013 |
| Lyrical Asset Management LP (focused) | 1.54M | 1.33% | $113.8M | trimmed -7.9% | 2024 Q4 |
| Schroder Investment Management Group | 1.51M | 1.30% | $111.6M | added +1.8% | 2020 Q1 |
| Morgan Stanley | 1.43M | 1.23% | $105.1M | trimmed -4.6% | ≤2013 |
| UBS | 1.43M | 1.23% | $105.1M | added +53% | ≤2013 |
| Swedbank Robur | 1.31M | 1.13% | $96.6M | unchanged | 2021 Q1 |
| M.d. Sass, LLC (focused) | 1.27M | 1.10% | $93.8M | added +2.9% | 2025 Q2 |
| Snyder Capital Management L P | 1.27M | 1.09% | $93.5M | trimmed -8.3% | ≤2013 |
| Bank OF America CORP /DE/ | 1.22M | 1.05% | $90.0M | added +5.9% | ≤2013 |
| Charles Schwab Investment Management | 1.06M | 0.91% | $78.0M | added +2.5% | ≤2013 |
| Northern Trust | 993.5k | 0.86% | $73.2M | added +1.2% | ≤2013 |
| DekaBank Deutsche Girozentrale | 953.8k | 0.82% | $70.3M | unchanged | ≤2013 |
| Pzena Investment Management | 887.6k | 0.77% | $65.4M | unchanged | 2022 Q1 |
| Goldman Sachs | 831.9k | 0.72% | $61.3M | trimmed -3.7% | ≤2013 |
| Thompson Siegel & Walmsley LLC | 805.3k | 0.69% | $59.3M | trimmed -0.5% | 2024 Q2 |
| Ananym Capital Management, LP (focused) | 674.9k | 0.58% | $49.7M | added +23.3% | 2024 Q4 |
| Ulysses Management LLC (focused) | 649.9k | 0.56% | $47.9M | trimmed -2.3% | 2025 Q1 |
| Defilade Capital Management, L.p. (focused) | 624.0k | 0.54% | $46.0M | added +94.8% | 2025 Q4 |
| SG Americas Securities, LLC | 606.5k | 0.52% | $44.7M | trimmed -26.1% | ≤2013 |
| DME Capital Management, LP (focused) | 599.3k | 0.52% | $44.1M | added +27.7% | 2025 Q4 |
| Raymond James Financial INC | 561.7k | 0.48% | $41.4M | added +14.9% | ≤2013 |
| BNY Mellon | 545.6k | 0.47% | $40.2M | added +0.6% | ≤2013 |
| Point72 | 520.1k | 0.45% | $38.3M | opened | 2026 Q1 |
| Clarkston Capital Partners, LLC | 484.2k | 0.42% | $35.7M | trimmed -67.2% | 2024 Q1 |
| Staley Capital Advisers INC | 450.7k | 0.39% | $33.2M | added +12115.2% | ≤2013 |
| Deutsche Bank AG\ | 415.3k | 0.36% | $30.6M | added +19.6% | 2013 Q3 |
| Nomura Asset Management International INC. | 392.7k | 0.34% | $28.9M | trimmed -55.4% | 2024 Q3 |
| Lone Peak Global Investors LLC (focused) | 377.4k | 0.33% | $27.8M | added +2% | 2024 Q4 |
| Gamco Investors, INC. et al | 360.9k | 0.31% | $26.6M | trimmed -4.9% | ≤2013 |
| Leith Wheeler Investment Counsel LTD. | 355.3k | 0.31% | $26.2M | trimmed -2.2% | 2021 Q3 |
| Private Management Group INC | 331.2k | 0.28% | $24.4M | trimmed -2.6% | 2024 Q3 |
| VAN Lanschot Kempen Investment Management N.v. | 305.9k | 0.26% | $22.5M | added +2.3% | 2024 Q3 |
| P2 Capital Partners, LLC (focused) | 299.5k | 0.26% | $22.1M | trimmed -17.2% | 2024 Q4 |
| GAMCO (Gabelli) | 289.5k | 0.25% | $21.3M | unchanged | ≤2013 |
| Zuckerman Investment Group, LLC | 288.6k | 0.25% | $21.3M | unchanged | 2018 Q1 |
| Nuveen | 282.3k | 0.24% | $20.8M | added +5.9% | 2016 Q4 |
Largest 50 of 539 shown; the full ranked, searchable register is at boothcheck.com/holders/HSIC. 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.