Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
323 institutional managers reported holding RXRX for the quarter ended Mar 31, 2026. Together they hold about 63% of shares outstanding; the top 10 hold 45%. 52 opened new positions; 57 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 49.28M | 9.31% | $151.3M | added +4.4% | 2021 Q2 |
| BlackRock | 43.19M | 8.16% | $132.6M | added +11.1% | 2021 Q2 |
| ARK Investment Management | 40.21M | 7.60% | $123.5M | added +7.8% | 2021 Q2 |
| State Street | 28.49M | 5.38% | $87.5M | added +12.5% | 2021 Q2 |
| Baillie Gifford | 23.68M | 4.47% | $72.7M | unchanged | 2021 Q2 |
| Softbank Group CORP. (focused) | 13.64M | 2.58% | $41.9M | unchanged | 2024 Q4 |
| Geode Capital | 12.28M | 2.32% | $37.7M | added +12.3% | 2021 Q2 |
| MIC Capital Management UK LLP (focused) | 9.64M | 1.82% | $29.6M | unchanged | 2021 Q4 |
| UBS | 9.12M | 1.72% | $28.0M | added +17.5% | 2021 Q2 |
| Goldman Sachs | 6.07M | 1.15% | $18.6M | added +175.5% | 2021 Q2 |
| Data Collective IV GP, LLC (focused) | 5.94M | 1.12% | $18.2M | unchanged | 2021 Q4 |
| Lingotto Investment Management LLP (focused) | 5.88M | 1.11% | $18.1M | added +19.3% | 2023 Q2 |
| Sumitomo Mitsui Trust Group, INC. | 5.42M | 1.02% | $16.6M | trimmed -12.9% | 2021 Q2 |
| Amova Asset Management Americas, INC. | 5.42M | 1.02% | $16.6M | trimmed -12.9% | 2021 Q2 |
| Susquehanna International Group | 4.23M | 0.80% | $13.0M | trimmed -3.9% | 2021 Q2 |
| Two Sigma | 4.07M | 0.77% | $12.5M | added +32.2% | 2022 Q4 |
| Northern Trust | 3.97M | 0.75% | $12.2M | added +15.4% | 2021 Q2 |
| Dcvc Opportunity Fund II GP, LLC (focused) | 3.95M | 0.75% | $12.1M | unchanged | 2023 Q4 |
| Charles Schwab Investment Management | 3.81M | 0.72% | $11.7M | trimmed -4.7% | 2021 Q2 |
| Marshall Wace | 2.88M | 0.54% | $8.8M | added +1169.6% | 2025 Q1 |
| Millennium Management | 2.61M | 0.49% | $8.0M | added +74.6% | 2021 Q4 |
| First Trust Advisors LP | 2.61M | 0.49% | $8.0M | added +15.2% | 2025 Q1 |
| IQ EQ Fund Management (IRELAND) LTD | 2.56M | 0.48% | $7.9M | added +6.4% | 2024 Q2 |
| Bank OF America CORP /DE/ | 2.50M | 0.47% | $7.7M | added +18.2% | 2021 Q2 |
| Renaissance Technologies | 2.40M | 0.45% | $7.4M | opened | 2026 Q1 |
| Morgan Stanley | 2.19M | 0.41% | $6.7M | trimmed -61.4% | 2021 Q2 |
| Capital Fund Management S.a. | 1.91M | 0.36% | $5.9M | added +7.3% | 2024 Q4 |
| BNY Mellon | 1.46M | 0.28% | $4.5M | added +29.3% | 2021 Q2 |
| Man Group | 1.20M | 0.23% | $3.7M | added +4190.3% | 2025 Q4 |
| Nuveen | 1.16M | 0.22% | $3.6M | added +7.3% | 2021 Q2 |
| Mitsubishi UFJ Asset Management CO., LTD. | 949.5k | 0.18% | $2.9M | added +2157.4% | 2021 Q3 |
| BNP Paribas Financial Markets | 945.1k | 0.18% | $2.9M | trimmed -49.8% | 2024 Q4 |
| Comprehensive Financial Management LLC (focused) | 941.9k | 0.18% | $2.9M | unchanged | 2021 Q2 |
| Group ONE Trading LLC | 901.1k | 0.17% | $2.8M | opened | 2024 Q2 |
| Rafferty Asset Management, LLC | 890.6k | 0.17% | $2.7M | trimmed -8.1% | 2021 Q3 |
| Jump Financial | 889.9k | 0.17% | $2.7M | added +34.5% | 2024 Q4 |
| Swiss National Bank | 877.0k | 0.17% | $2.7M | added +21.8% | 2021 Q4 |
| Stifel Financial CORP | 776.9k | 0.15% | $2.4M | added +31.6% | 2023 Q4 |
| FMR (Fidelity) | 736.7k | 0.14% | $2.3M | trimmed -77.3% | 2021 Q2 |
| Vestmark Advisory Solutions, INC. | 727.0k | 0.14% | $2.2M | added +20.2% | 2023 Q4 |
| Invesco | 691.2k | 0.13% | $2.1M | added +31.4% | 2021 Q2 |
| GSA Capital Partners LLP | 669.6k | 0.13% | $2.1M | added +2503.6% | 2025 Q4 |
| Citadel Advisors | 624.7k | 0.12% | $1.9M | trimmed -85.2% | 2021 Q4 |
| Rhumbline Advisers | 603.8k | 0.11% | $1.9M | added +19% | 2021 Q2 |
| Algert Global LLC | 596.9k | 0.11% | $1.8M | trimmed -10.2% | 2025 Q4 |
| Pivotal bioVenture Partners Investment Advisor LLC (focused) | 595.5k | 0.11% | $1.8M | unchanged | 2024 Q4 |
| Nan Fung Group Holdings LTD (focused) | 595.3k | 0.11% | $1.8M | unchanged | 2024 Q4 |
| California State Teachers Retirement System | 574.6k | 0.11% | $1.8M | added +64% | 2021 Q2 |
| T. Rowe Price | 560.7k | 0.11% | $1.7M | added +35% | 2021 Q2 |
| Hudson Bay Capital | 535.7k | 0.10% | $1.6M | added +26.1% | 2023 Q2 |
Largest 50 of 323 shown; the full ranked, searchable register is at boothcheck.com/holders/RXRX. 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.