Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
268 institutional managers reported holding ANIP for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 43%. 38 opened new positions; 49 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 2.75M | 12.75% | $211.2M | added +3.2% | 2013 Q3 |
| Vanguard Group | 1.35M | 6.26% | $103.8M | added +3.4% | 2013 Q3 |
| Soleus Capital Management, L.p. | 820.2k | 3.81% | $63.1M | added +68.7% | 2024 Q3 |
| State Street | 771.6k | 3.58% | $59.3M | added +6.1% | ≤2013 |
| Tang Capital Management LLC | 707.5k | 3.28% | $54.4M | added +47% | 2024 Q1 |
| Goldentree Asset Management LP (focused) | 668.0k | 3.10% | $51.4M | opened | 2026 Q1 |
| Deep Track Capital, LP | 600.0k | 2.79% | $46.1M | added +25.6% | 2023 Q2 |
| Millennium Management | 592.0k | 2.75% | $45.5M | added +9.7% | 2021 Q3 |
| Arrowstreet Capital | 564.4k | 2.62% | $43.4M | added +19.3% | 2025 Q3 |
| Dimensional Fund Advisors | 531.2k | 2.47% | $40.8M | added +8.9% | 2013 Q3 |
| UBS | 530.5k | 2.46% | $40.8M | added +192% | 2013 Q3 |
| Nomura Asset Management International INC. | 524.8k | 2.44% | $40.3M | unchanged | 2024 Q3 |
| Geode Capital | 489.2k | 2.27% | $37.6M | added +2.5% | 2013 Q3 |
| Nuveen | 402.4k | 1.87% | $30.9M | added +3.9% | 2019 Q2 |
| Global Alpha Capital Management LTD. | 361.2k | 1.68% | $27.8M | trimmed -38.8% | 2021 Q3 |
| Ranger Investment Management, L.p. | 360.1k | 1.67% | $27.7M | trimmed -0.6% | 2017 Q1 |
| William Blair Investment Management, LLC | 327.3k | 1.52% | $25.2M | added +3.3% | 2021 Q2 |
| Invesco | 324.3k | 1.51% | $24.9M | added +70.9% | 2014 Q2 |
| Deutsche Bank AG\ | 319.7k | 1.48% | $24.6M | trimmed -18.6% | 2014 Q1 |
| Jones Hill Capital LP (focused) | 318.6k | 1.48% | $24.5M | opened | 2026 Q1 |
| Kennedy Capital Management LLC | 294.0k | 1.36% | $22.6M | added +37.5% | 2022 Q2 |
| Parkman Healthcare Partners LLC | 280.6k | 1.30% | $21.6M | added +93.5% | 2025 Q1 |
| Ameriprise Financial INC | 270.3k | 1.25% | $20.8M | unchanged | 2014 Q2 |
| Sio Capital Management, LLC | 265.5k | 1.23% | $20.4M | added +204.3% | 2024 Q1 |
| Freestone Grove Partners LP | 254.2k | 1.18% | $19.5M | added +80.2% | 2024 Q4 |
| Charles Schwab Investment Management | 234.3k | 1.09% | $18.0M | trimmed -6.9% | 2014 Q2 |
| Bank OF Montreal /CAN/ | 230.1k | 1.07% | $17.7M | added +4.9% | 2024 Q3 |
| Oberweis Asset Management INC/ | 221.4k | 1.03% | $17.0M | added +17.2% | 2023 Q3 |
| Teacher Retirement System OF Texas | 220.2k | 1.02% | $16.9M | added +45.6% | 2023 Q3 |
| Morgan Stanley | 219.8k | 1.02% | $16.9M | trimmed -21.9% | 2013 Q4 |
| Goldman Sachs | 219.8k | 1.02% | $16.9M | trimmed -45.1% | 2015 Q1 |
| Royal Bank OF Canada | 213.9k | 0.99% | $16.4M | trimmed -3.3% | 2013 Q3 |
| D. E. Shaw | 213.4k | 0.99% | $16.4M | trimmed -15.8% | 2024 Q2 |
| Mizuho Markets Americas LLC | 210.8k | 0.98% | $16.2M | added +4.3% | 2024 Q3 |
| Qube Research & Technologies LTD | 210.1k | 0.97% | $16.2M | trimmed -3.6% | 2023 Q3 |
| Man Group | 208.7k | 0.97% | $16.0M | added +158.5% | 2025 Q2 |
| Aberdeen Group plc | 206.1k | 0.96% | $15.8M | trimmed -14.4% | 2024 Q4 |
| American Century Companies INC | 191.6k | 0.89% | $14.7M | added +228.9% | 2023 Q2 |
| Renaissance Technologies | 186.1k | 0.86% | $14.3M | trimmed -40.8% | 2023 Q2 |
| Schonfeld Strategic Advisors | 185.6k | 0.86% | $14.3M | trimmed -3.3% | 2025 Q1 |
| Northern Trust | 184.9k | 0.86% | $14.2M | added +4.5% | 2013 Q4 |
| Walleye Capital LLC | 183.1k | 0.85% | $14.1M | added +56.1% | 2024 Q2 |
| Penn Capital Management Company, LLC | 179.7k | 0.83% | $13.8M | added +30.8% | 2025 Q1 |
| Loomis Sayles & CO L P | 163.0k | 0.76% | $12.5M | trimmed -3.5% | 2023 Q1 |
| Bank OF America CORP /DE/ | 150.5k | 0.70% | $11.6M | added +229.4% | 2013 Q3 |
| Ikarian Capital, LLC | 147.1k | 0.68% | $11.3M | opened | 2026 Q1 |
| Citigroup INC | 144.3k | 0.67% | $11.1M | trimmed -16.1% | 2014 Q2 |
| Russell Investments Group, LTD. | 138.9k | 0.65% | $10.7M | added +9.8% | 2019 Q3 |
| Caption Management, LLC | 135.9k | 0.63% | $10.4M | added +135.2% | 2025 Q4 |
| Principal Financial Group INC | 129.1k | 0.60% | $9.9M | added +19.1% | 2015 Q1 |
Largest 50 of 268 shown; the full ranked, searchable register is at boothcheck.com/holders/ANIP. 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.