ImmunoGen, Inc.
IMGNDelisted Feb 12, 2024- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0000855654
ImmunoGen, Inc. was delisted on Feb 12, 2024; its insiders filed their last Form 4 on Feb 12, 2024; 327 institutions reported holding it in 13F filings for Q4 2023, worth $7.54B in total; Maverick Capital was the only superinvestor holding it.
13F holders, Q4 2023
Institutional positions in ImmunoGen, Inc. as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 327
- +52 vs. Q3 2023
- Shares held
- 254.1M
- +8.75M (+3.6%) vs. Q3 2023
- Total value
- $7.54B
- +$3.63B (+93.0%) vs. Q3 2023
- New holders
- 121
- 70 more added
- Sold out
- 69
- 102 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IMGN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1 | $269 |
| Q1 2026 | 1 | $269 |
| Q4 2025 | 1 | $269 |
| Q3 2025 | 1 | $269 |
| Q2 2025 | 1 | $269 |
| Q1 2025 | 1 | $269 |
| Q4 2024 | 1 | $269 |
| Q3 2024 | 1 | $269 |
| Q2 2024 | 1 | $31 |
| Q1 2024 | 3 | $27.8K |
| Q4 2023 | 327 | $7.54B |
| Q3 2023 | 276 | $3.91B |
| Q2 2023 | 266 | $4.24B |
| Q1 2023 | 191 | $806.0M |
| Q4 2022 | 204 | $1.01B |
| Q3 2022 | 222 | $942.2M |
| Q2 2022 | 216 | $882.4M |
| Q1 2022 | 217 | $925.0M |
| Q4 2021 | 236 | $1.41B |
| Q3 2021 | 217 | $1.00B |
| Q2 2021 | 214 | $1.19B |
| Q1 2021 | 217 | $1.48B |
Institutions, Q4 2023
Shares, value and share of portfolio for each institution holding ImmunoGen, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| P Schoenfeld Asset Management LP | 165,000 | $4.89M | 1.37% | +165,000 | New |
| Ironwood Investment Management LLC | 174,540 | $5.18M | 2.72% | −106−0.1% | Reduced |
| Vestcor Inc | 175,000 | $5.19M | 0.18% | +175,000 | New |
| Exome Asset Management LLC | 186,900 | $5.54M | 5.48% | +186,900 | New |
| Birchview Capital, LP | 188,000 | $5.57M | 4.36% | −2,000−1.1% | Reduced |
| HGC Investment Management Inc. | 188,929 | $5.60M | 1.63% | +188,929 | New |
| Velan Capital Investment Management LP | 189,500 | $5.62M | 3.98% | 00.0% | Unchanged |
| Calamos Advisors LLC | 191,117 | $5.67M | 0.03% | +191,117 | New |
| Versor Investments LP | 192,295 | $5.70M | 1.16% | +192,295 | New |
| DAFNA Capital Management LLC | 193,661 | $5.74M | 1.38% | +110,661+133.3% | Added |
| Driehaus Capital Management LLC | 195,980 | $5.81M | 0.07% | −1,244,072−86.4% | Reduced |
| Highbridge Capital Management LLC | 200,000 | $5.93M | 0.31% | +200,000 | New |
| ArrowMark Colorado Holdings LLC | 200,780 | $5.95M | 0.07% | −183,000−47.7% | Reduced |
| UBS Group AG | 201,197 | $5.97M | 0.00% | −10,983−5.2% | Reduced |
| Fred Alger Management, LLC | 208,660 | $6.19M | 0.03% | −146,199−41.2% | Reduced |
| Simplex Trading, LLC | 211,467 | $6.27M | 0.20% | +967+0.5% | Added |
| Harvest Management LLC | 214,000 | $6.35M | 7.16% | +214,000 | New |
| Allianz Asset Management GmbH | 214,350 | $6.36M | 0.01% | +169,750+380.6% | Added |
| Twin Securities, Inc. | 221,622 | $6.57M | 7.10% | +221,622 | New |
| FORA Capital, LLC | 221,921 | $6.58M | 0.57% | +221,921 | New |
| State of Wisconsin Investment Board | 232,462 | $6.89M | 0.02% | +12,560+5.7% | Added |
| Legal & General Group Plc | 235,326 | $6.98M | 0.00% | +20,751+9.7% | Added |
| Kennedy Capital Management, Inc. | 241,032 | $7.15M | 0.16% | +241,032 | New |
| California State Teachers Retirement System | 250,499 | $7.43M | 0.01% | +4,120+1.7% | Added |
| Qube Research & Technologies Ltd | 263,880 | $7.82M | 0.02% | +263,880 | New |
| Glazer Capital, LLC | 268,135 | $7.95M | 0.82% | +268,135 | New |
| Primecap Management Co | 273,100 | $8.10M | 0.01% | 00.0% | Unchanged |
| Capital Fund Management S.A. | 297,985 | $8.84M | 0.11% | +233,841+364.6% | Added |
| Rafferty Asset Management, LLC | 307,369 | $9.11M | 0.04% | −259,616−45.8% | Reduced |
| First Trust Advisors LP | 307,539 | $9.12M | 0.01% | +307,539 | New |
| UBS Asset Management Americas Inc | 310,789 | $9.21M | 0.00% | +4,769+1.6% | Added |
| Citigroup Inc | 337,743 | $10.0M | 0.01% | +92,192+37.5% | Added |
| Cubist Systematic Strategies, LLC | 340,346 | $10.1M | 0.12% | +313,550+1,170.1% | Added |
| Hennion & Walsh Asset Management, Inc. | 356,997 | $10.6M | 0.61% | −166,077−31.8% | Reduced |
| Rhumbline Advisers | 361,594 | $10.7M | 0.01% | −2,802−0.8% | Reduced |
| Two Sigma Investments, LP | 363,900 | $10.8M | 0.03% | −1,264,317−77.7% | Reduced |
| Woodline Partners LP | 400,000 | $11.9M | 0.13% | −2,033,161−83.6% | Reduced |
| Panagora Asset Management Inc | 409,658 | $12.1M | 0.07% | −688,759−62.7% | Reduced |
| Segantii Capital Management Ltd | 415,000 | $12.3M | 0.72% | +415,000 | New |
| Credit Suisse AG | 417,277 | $12.4M | 0.01% | +124,236+42.4% | Added |
| Dimensional Fund Advisors LP | 454,213 | $13.5M | 0.00% | −726,531−61.5% | Reduced |
| FMR LLC | 456,168 | $13.5M | 0.00% | −5,332,387−92.1% | Reduced |
| Slotnik Capital, LLC | 460,000 | $13.6M | 9.47% | +460,000 | New |
| Carlson Capital L P | 466,188 | $13.8M | 1.11% | +466,188 | New |
| Swiss National Bank | 480,800 | $14.3M | 0.01% | 00.0% | Unchanged |
| CM Management, LLC | 500,000 | $14.8M | 11.91% | 00.0% | Unchanged |
| Picton Mahoney Asset Management | 500,000 | $14.8M | 0.69% | +500,000 | New |
| HSBC Holdings PLC | 519,779 | $15.4M | 0.01% | +519,779 | New |
| Two Sigma Advisers, LP | 523,118 | $15.5M | 0.04% | −771,400−59.6% | Reduced |
| Melqart Asset Management (UK) Ltd | 531,324 | $15.8M | 1.27% | +531,324 | New |
| Man Group plc | 535,000 | $15.9M | 0.05% | – | – |
| Canada Pension Plan Investment Board | 586,990 | $17.4M | 0.02% | +586,990 | New |
| Vivaldi Asset Management, LLC | 596,720 | $17.7M | 1.36% | +596,720 | New |
| Superstring Capital Management LP | 598,072 | $17.7M | 12.66% | +598,072 | New |
| Gabelli & Co Investment Advisers, Inc. | 624,750 | $18.5M | 3.48% | +624,750 | New |
| Jane Street Group, LLC | 634,353 | $18.8M | 0.02% | −283,411−30.9% | Reduced |
| Barclays PLC | 642,156 | $19.0M | 0.01% | +299,429+87.4% | Added |
| Sio Capital Management, LLC | 644,366 | $19.1M | 4.92% | +411,615+176.8% | Added |
| Decheng Capital LLC | 659,928 | $19.6M | 5.47% | +659,928 | New |
| Voya Investment Management LLC | 677,450 | $20.1M | 0.02% | +162,314+31.5% | Added |
| New York Life Investment Management LLC | 682,396 | $20.2M | 0.21% | +682,396 | New |
| Susquehanna International Group, LLP | 736,034 | $21.8M | 0.04% | −238,853−24.5% | Reduced |
| Gabelli Funds LLC | 745,500 | $22.1M | 0.17% | +745,500 | New |
| Eversept Partners, LP | 748,950 | $22.2M | 2.18% | +748,950 | New |
| Rock Springs Capital Management LP | 759,365 | $22.5M | 0.56% | 00.0% | Unchanged |
| Eventide Asset Management, LLC | 763,000 | $22.6M | 0.37% | −537,000−41.3% | Reduced |
| Bank of America Corp | 780,279 | $23.1M | 0.00% | +238,477+44.0% | Added |
| Citadel Advisors LLC | 795,458 | $23.6M | 0.02% | −492,084−38.2% | Reduced |
| American Century Companies Inc | 836,134 | $24.8M | 0.02% | +137,018+19.6% | Added |
| Farallon Capital Management, L.L.C. | 842,000 | $25.0M | 0.16% | +842,000 | New |
| Avoro Capital Advisors LLC | 875,000 | $25.9M | 0.36% | +875,000 | New |
| Invesco Ltd. | 885,323 | $26.2M | 0.01% | −200,845−18.5% | Reduced |
| Water Island Capital LLC | 893,758 | $26.5M | 2.72% | +893,758 | New |
| Adage Capital Partners GP, L.L.C. | 971,928 | $28.8M | 0.06% | +771,928+386.0% | Added |
| Pictet Asset Management Holding SA | 975,962 | $28.9M | 0.03% | −2,732,177−73.7% | Reduced |
| Pinnacle Associates Ltd | 1,011,792 | $30.0M | 0.50% | −4,364−0.4% | Reduced |
| Bank of New York Mellon Corp | 1,063,500 | $31.5M | 0.01% | −732,610−40.8% | Reduced |
| Deutsche Bank AG | 1,065,880 | $31.6M | 0.02% | +840,814+373.6% | Added |
| Price T Rowe Associates Inc | 1,088,213 | $32.3M | 0.00% | −2,818,157−72.1% | Reduced |
| Candriam Luxembourg S.C.A. | 1,122,598 | $33.3M | 0.23% | +100.0% | Added |
| Principal Financial Group Inc | 1,127,402 | $33.4M | 0.02% | +142,738+14.5% | Added |
| Artisan Partners Limited Partnership | 1,172,323 | $34.8M | 0.05% | −2,552,260−68.5% | Reduced |
| Marshall Wace, LLP | 1,187,027 | $35.2M | 0.07% | +1,187,027 | New |
| Emerald Mutual Fund Advisers Trust | 1,188,209 | $35.2M | 1.87% | −277,854−19.0% | Reduced |
| Goldman Sachs Group Inc | 1,189,485 | $35.3M | 0.01% | −49,614−4.0% | Reduced |
| Taconic Capital Advisors LP | 1,325,000 | $39.3M | 3.79% | +1,325,000 | New |
| Westchester Capital Management, LLC | 1,364,927 | $40.5M | 1.63% | +1,364,927 | New |
| QVT Financial LP | 1,375,900 | $40.8M | 2.46% | 00.0% | Unchanged |
| Affinity Asset Advisors, LLC | 1,404,608 | $41.6M | 8.30% | +1,404,608 | New |
| Kynam Capital Management, LP | 1,422,503 | $42.2M | 4.77% | +1,422,503 | New |
| CNH Partners LLC | 1,429,078 | $42.4M | 1.71% | +1,429,078 | New |
| Balyasny Asset Management LLC | 1,496,758 | $44.4M | 0.12% | +1,484,838+12,456.7% | Added |
| Alliancebernstein L.P. | 1,507,809 | $44.7M | 0.02% | +1,207,295+401.7% | Added |
| Sofinnova Investments, Inc. | 1,546,902 | $45.9M | 2.57% | −498,300−24.4% | Reduced |
| Magnetar Financial LLC | 1,629,285 | $48.3M | 1.23% | +1,629,285 | New |
| Renaissance Technologies LLC | 1,631,240 | $48.4M | 0.07% | +896,600+122.0% | Added |
| Emerald Advisers, LLC | 1,744,981 | $51.7M | 2.21% | −66,325−3.7% | Reduced |
| Alpine Associates Management Inc. | 1,761,300 | $52.2M | 2.68% | +1,761,300 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 1,785,296 | $52.9M | 0.19% | +1,485,296+495.1% | Added |
| Avidity Partners Management LP | 1,829,215 | $54.2M | 2.07% | −88,692−4.6% | Reduced |