Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
338 institutional managers reported holding CORT for the quarter ended Mar 31, 2026. Together they hold about 76% of shares outstanding; the top 10 hold 50%. 63 opened new positions; 110 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 12.15M | 11.63% | $489.8M | added +0.7% | ≤2013 |
| Vanguard Group | 9.64M | 9.23% | $388.6M | added +1.5% | ≤2013 |
| Ingalls & Snyder LLC | 7.61M | 7.29% | $306.7M | added +5.7% | ≤2013 |
| Renaissance Technologies | 5.68M | 5.44% | $229.0M | trimmed -1.3% | 2015 Q1 |
| Parallel Advisors, LLC | 3.98M | 3.81% | $160.3M | added +2.5% | 2019 Q2 |
| State Street | 3.20M | 3.06% | $129.0M | added +7.2% | ≤2013 |
| FMR (Fidelity) | 3.19M | 3.06% | $128.6M | added +32.1% | 2017 Q1 |
| Geode Capital | 2.71M | 2.60% | $109.4M | added +1.7% | ≤2013 |
| First Trust Advisors LP | 2.17M | 2.08% | $87.6M | added +213.5% | 2017 Q2 |
| UBS | 1.58M | 1.51% | $63.7M | added +155% | ≤2013 |
| Dimensional Fund Advisors | 1.55M | 1.49% | $62.6M | trimmed -4.1% | 2016 Q4 |
| Tang Capital Management LLC | 1.50M | 1.44% | $60.5M | added +856.9% | 2025 Q4 |
| D. E. Shaw | 1.18M | 1.13% | $47.6M | added +596.3% | 2015 Q3 |
| Charles Schwab Investment Management | 1.12M | 1.07% | $45.1M | added +5.4% | ≤2013 |
| Morgan Stanley | 1.02M | 0.98% | $41.1M | trimmed -36% | ≤2013 |
| MPM Bioimpact LLC (focused) | 985.7k | 0.94% | $39.7M | opened | 2026 Q1 |
| Two Sigma | 945.9k | 0.91% | $38.1M | added +3283.1% | 2023 Q2 |
| Cerity Partners LLC | 731.7k | 0.70% | $29.5M | trimmed -3.1% | 2023 Q3 |
| Goldman Sachs | 725.8k | 0.69% | $29.3M | added +68.4% | 2015 Q2 |
| Sio Capital Management, LLC | 674.8k | 0.65% | $27.2M | opened | 2026 Q1 |
| Northern Trust | 643.2k | 0.62% | $25.9M | added +2.2% | ≤2013 |
| Invesco | 628.4k | 0.60% | $25.3M | trimmed -23.1% | 2015 Q1 |
| Millennium Management | 558.7k | 0.54% | $22.5M | added +531.8% | 2015 Q1 |
| BNY Mellon | 543.8k | 0.52% | $21.9M | trimmed -6.5% | ≤2013 |
| Boston Trust Walden CORP | 462.6k | 0.44% | $18.6M | trimmed -12.3% | 2020 Q4 |
| Principal Financial Group INC | 455.2k | 0.44% | $18.3M | added +2.5% | 2013 Q3 |
| Jane Street | 427.6k | 0.41% | $17.2M | added +104.5% | 2021 Q2 |
| Citigroup INC | 421.1k | 0.40% | $17.0M | added +1133.8% | ≤2013 |
| AQR Capital | 406.2k | 0.39% | $16.4M | trimmed -54.2% | 2014 Q1 |
| Public Sector Pension Investment Board | 334.9k | 0.32% | $13.5M | added +3.3% | 2017 Q4 |
| CPP Investment Board | 324.9k | 0.31% | $13.1M | added +161.2% | 2024 Q4 |
| Franklin Resources | 305.2k | 0.29% | $12.3M | trimmed -34.8% | 2022 Q2 |
| Kennedy Capital Management LLC | 304.6k | 0.29% | $12.3M | added +45.2% | 2024 Q3 |
| Soleus Capital Management, L.p. | 285.5k | 0.27% | $11.5M | opened | 2026 Q1 |
| Voleon Capital Management LP | 262.2k | 0.25% | $10.6M | opened | 2025 Q3 |
| Caption Management, LLC | 260.0k | 0.25% | $10.5M | opened | 2025 Q3 |
| Citadel Advisors | 254.2k | 0.24% | $10.2M | trimmed -70.5% | 2022 Q1 |
| Boxer Capital Management, LLC | 250.0k | 0.24% | $10.1M | opened | 2026 Q1 |
| Susquehanna International Group | 230.7k | 0.22% | $9.3M | opened | 2018 Q2 |
| Legal & General Group PLC | 219.7k | 0.21% | $8.9M | trimmed -10.3% | 2016 Q2 |
| Allspring Global Investments Holdings, LLC | 214.6k | 0.20% | $8.6M | trimmed -57.8% | 2021 Q4 |
| Ameriprise Financial INC | 212.1k | 0.20% | $8.5M | trimmed -48.4% | 2017 Q3 |
| Emerald Advisers, LLC | 205.6k | 0.20% | $8.3M | trimmed -11.7% | 2025 Q1 |
| Trexquant Investment LP | 194.0k | 0.19% | $7.8M | added +153.9% | 2025 Q4 |
| Nuveen | 191.9k | 0.18% | $7.7M | added +2.9% | 2019 Q2 |
| Rhumbline Advisers | 190.7k | 0.18% | $7.7M | added +2.1% | ≤2013 |
| Swiss National Bank | 187.0k | 0.18% | $7.5M | unchanged | 2015 Q2 |
| Emerald Mutual Fund Advisers Trust | 179.6k | 0.17% | $7.2M | trimmed -7.6% | 2025 Q1 |
| Susquehanna Portfolio Strategies, LLC | 177.1k | 0.17% | $7.1M | opened | 2026 Q1 |
| Barclays PLC | 172.1k | 0.17% | $6.9M | added +452.2% | ≤2013 |
Largest 50 of 338 shown; the full ranked, searchable register is at boothcheck.com/holders/CORT. 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.