Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
453 institutional managers reported holding SN for the quarter ended Mar 31, 2026. Together they hold about 57% of shares outstanding; the top 10 hold 30%. 97 opened new positions; 70 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| FMR (Fidelity) | 20.16M | 14.19% | $2.14B | trimmed -3.7% | 2023 Q3 |
| HighTower Advisors, LLC | 6.63M | 4.66% | $702.5M | added +4.7% | 2023 Q3 |
| BlackRock | 3.15M | 2.22% | $333.7M | added +62.8% | 2023 Q3 |
| FIL LTD | 2.32M | 1.63% | $245.6M | added +2.2% | 2024 Q4 |
| UBS | 2.29M | 1.61% | $242.7M | added +6% | 2023 Q3 |
| Baillie Gifford | 1.94M | 1.36% | $205.6M | trimmed -2.5% | 2024 Q2 |
| Abrams Bison Investments, LLC (focused) | 1.44M | 1.01% | $152.2M | added +16.9% | 2024 Q1 |
| Vanguard Group | 1.42M | 1.00% | $150.1M | added +546.5% | 2023 Q3 |
| AllianceBernstein | 1.31M | 0.92% | $138.7M | trimmed -14.6% | 2023 Q3 |
| Geode Capital | 1.30M | 0.91% | $137.7M | added +150.4% | 2024 Q2 |
| Steadfast Capital Management LP | 1.23M | 0.87% | $130.5M | opened | 2026 Q1 |
| State Street | 1.14M | 0.81% | $121.2M | added +45.3% | 2024 Q2 |
| William Blair Investment Management, LLC | 1.07M | 0.76% | $113.8M | trimmed -13.2% | 2024 Q2 |
| Dimensional Fund Advisors | 1.04M | 0.73% | $110.7M | trimmed -2.4% | 2023 Q3 |
| Dorsal Capital Management, LP (focused) | 1.00M | 0.70% | $106.0M | unchanged | 2024 Q4 |
| Gilder Gagnon Howe & CO LLC | 957.1k | 0.67% | $101.5M | trimmed -3.4% | 2024 Q3 |
| Ameriprise Financial INC | 953.0k | 0.67% | $101.0M | trimmed -1.3% | 2024 Q3 |
| Greenvale Capital LLP (focused) | 950.0k | 0.67% | $100.7M | trimmed -8.8% | 2024 Q4 |
| Westfield Capital Management CO LP | 904.5k | 0.64% | $95.9M | added +7.7% | 2024 Q3 |
| Goldman Sachs | 896.9k | 0.63% | $95.1M | added +12.7% | 2023 Q3 |
| Parsifal Capital Management, LP (focused) | 793.1k | 0.56% | $84.1M | trimmed -33.9% | 2023 Q3 |
| WCM Investment Management | 793.1k | 0.56% | $84.1M | added +4.3% | 2024 Q3 |
| Divisadero Street Capital Management, LP | 769.2k | 0.54% | $81.5M | unchanged | 2023 Q3 |
| T. Rowe Price | 731.1k | 0.52% | $77.5M | added +136.3% | 2024 Q2 |
| Eurizon Capital SGR S.p.A. | 730.6k | 0.51% | $77.4M | opened | 2026 Q1 |
| Voss Capital, LP (focused) | 695.0k | 0.49% | $73.7M | trimmed -27.5% | 2025 Q1 |
| Evercore Wealth Management, LLC | 670.4k | 0.47% | $71.1M | added +24.7% | 2025 Q4 |
| Blue Grotto Capital, LLC (focused) | 670.0k | 0.47% | $71.0M | trimmed -5% | 2025 Q2 |
| Oberweis Asset Management INC/ | 600.0k | 0.42% | $63.6M | added +14% | 2024 Q1 |
| Qube Research & Technologies LTD | 580.4k | 0.41% | $61.5M | added +931.9% | 2023 Q4 |
| Bank OF America CORP /DE/ | 559.8k | 0.39% | $59.3M | added +17.9% | 2023 Q3 |
| Senator Investment Group LP | 554.0k | 0.39% | $58.7M | added +38.5% | 2025 Q3 |
| Fred Alger Management, LLC | 509.5k | 0.36% | $54.0M | added +1266.2% | 2025 Q4 |
| Susquehanna International Group | 498.5k | 0.35% | $52.8M | added +12765.4% | 2023 Q4 |
| Millennium Management | 466.3k | 0.33% | $49.4M | added +423.3% | 2023 Q4 |
| Clal Insurance Enterprises Holdings LTD | 438.0k | 0.31% | $46.4M | unchanged | 2025 Q4 |
| Holocene Advisors | 437.1k | 0.31% | $46.3M | added +26.3% | 2024 Q2 |
| Disciplined Growth Investors INC /MN | 427.4k | 0.30% | $45.3M | trimmed -6.2% | 2025 Q2 |
| Milestone Resources Group LTD (focused) | 415.2k | 0.29% | $44.0M | unchanged | 2024 Q3 |
| Federated Hermes, INC. | 401.3k | 0.28% | $42.5M | added +66.4% | 2024 Q3 |
| Vaughan Nelson Investment Management, L.p. | 394.5k | 0.28% | $41.8M | added +29.3% | 2025 Q3 |
| Allspring Global Investments Holdings, LLC | 391.1k | 0.28% | $41.5M | added +11.8% | 2025 Q2 |
| Charles Schwab Investment Management | 384.7k | 0.27% | $40.8M | added +120.6% | 2023 Q3 |
| Tyro Capital Management LLC (focused) | 381.9k | 0.27% | $40.5M | added +6.6% | 2025 Q1 |
| Morgan Stanley | 355.6k | 0.25% | $37.7M | trimmed -67.1% | 2023 Q3 |
| Deutsche Bank AG\ | 350.7k | 0.25% | $37.2M | trimmed -8.6% | 2024 Q2 |
| Northern Trust | 306.5k | 0.22% | $32.5M | added +123.8% | 2024 Q2 |
| Hook Mill Capital Partners, LP (focused) | 284.9k | 0.20% | $30.2M | trimmed -29.8% | 2025 Q1 |
| Hodges Capital Management INC. | 280.9k | 0.20% | $29.8M | trimmed -8.1% | 2024 Q2 |
| Renaissance Technologies | 271.1k | 0.19% | $28.7M | opened | 2026 Q1 |
Largest 50 of 453 shown; the full ranked, searchable register is at boothcheck.com/holders/SN. 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.