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, Q3 2023
Institutional positions in ImmunoGen, Inc. as of Sep 30, 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
- 276
- +12 vs. Q2 2023
- Shares held
- 245.8M
- +21.7M (+9.7%) vs. Q2 2023
- Total value
- $3.91B
- −$313.0M (−7.4%) vs. Q2 2023
- New holders
- 46
- 118 more added
- Sold out
- 34
- 72 more reduced
2 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2023
Shares, value and share of portfolio for each institution holding ImmunoGen, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 24,482,155 | $388.5M | 0.01% | +3,583,129+17.1% | Added |
| BlackRock Inc. | 20,273,859 | $321.7M | 0.01% | −631,127−3.0% | Reduced |
| Janus Henderson Group PLC | 17,684,816 | $280.6M | 0.18% | +2,185,028+14.1% | Added |
| Redmile Group, LLC | 17,503,417 | $277.8M | 13.22% | −227,000−1.3% | Reduced |
| Ra Capital Management, L.P. | 13,322,288 | $211.4M | 4.16% | +10,992,330+471.8% | Added |
| Wellington Management Group LLP | 13,258,997 | $210.4M | 0.04% | +3,506,098+35.9% | Added |
| State Street Corp | 9,551,852 | $151.6M | 0.01% | +1,612,938+20.3% | Added |
| D. E. Shaw & Co., Inc. | 6,995,239 | $111.0M | 0.18% | +714,723+11.4% | Added |
| Fairmount Funds Management LLC | 5,929,592 | $94.1M | 11.32% | −100,000−1.7% | Reduced |
| FMR LLC | 5,788,555 | $91.9M | 0.01% | +175,813+3.1% | Added |
| Geode Capital Management, LLC | 4,899,975 | $77.8M | 0.01% | +147,425+3.1% | Added |
| Morgan Stanley | 4,829,091 | $76.6M | 0.01% | +1,490,486+44.6% | Added |
| Price T Rowe Associates Inc | 3,906,370 | $62.0M | 0.01% | +1,584,109+68.2% | Added |
| Artisan Partners Limited Partnership | 3,724,583 | $59.1M | 0.10% | −1,3380.0% | Reduced |
| Pictet Asset Management Holding SA | 3,708,139 | $58.8M | 0.07% | +3,708,139 | New |
| Nuveen Asset Management, LLC | 3,108,039 | $49.3M | 0.02% | +465,505+17.6% | Added |
| Hood River Capital Management LLC | 3,044,485 | $48.3M | 1.55% | +60,814+2.0% | Added |
| Boxer Capital, LLC | 2,961,000 | $47.0M | 2.50% | 00.0% | Unchanged |
| Maverick Capital LtdSuperinvestorMaverick Capital | 2,518,527 | $40.0M | 0.93% | −1,268,371−33.5% | Reduced |
| Voloridge Investment Management, LLC | 2,512,251 | $39.9M | 0.20% | +481,296+23.7% | Added |
| Woodline Partners LP | 2,433,161 | $38.6M | 0.45% | −114,478−4.5% | Reduced |
| Northern Trust Corp | 2,370,864 | $37.6M | 0.01% | −25,182−1.1% | Reduced |
| JPMorgan Chase & Co | 2,198,427 | $34.9M | 0.00% | +1,336,005+154.9% | Added |
| Nicholas Investment Partners, LP | 2,067,561 | $32.8M | 2.45% | +843,434+68.9% | Added |
| Norges Bank | 2,055,089 | $32.6M | 0.01% | +1,890,089+1,145.5% | Added |
| Sofinnova Investments, Inc. | 2,045,202 | $32.5M | 2.26% | +1,217,884+147.2% | Added |
| Avidity Partners Management LP | 1,917,907 | $30.4M | 1.23% | −79,893−4.0% | Reduced |
| Charles Schwab Investment Management Inc | 1,830,575 | $29.1M | 0.01% | +20,113+1.1% | Added |
| Emerald Advisers, LLC | 1,811,306 | $28.7M | 1.39% | +827,609+84.1% | Added |
| Bank of New York Mellon Corp | 1,796,110 | $28.5M | 0.01% | +703,117+64.3% | Added |
| Two Sigma Investments, LP | 1,628,217 | $25.8M | 0.07% | +812,680+99.6% | Added |
| Millennium Management LLC | 1,605,714 | $25.5M | 0.03% | −1,092,149−40.5% | Reduced |
| Artal Group S.A. | 1,512,113 | $24.0M | 1.05% | +746,616+97.5% | Added |
| Tang Capital Management LLC | 1,500,000 | $23.8M | 3.36% | +200,000+15.4% | Added |
| Emerald Mutual Fund Advisers Trust | 1,466,063 | $23.3M | 1.40% | +649,069+79.4% | Added |
| Driehaus Capital Management LLC | 1,440,052 | $22.9M | 0.30% | +263,922+22.4% | Added |
| QVT Financial LP | 1,375,900 | $21.8M | 1.30% | 00.0% | Unchanged |
| Silverarc Capital Management, LLC | 1,307,435 | $20.7M | 7.73% | −112,565−7.9% | Reduced |
| Eventide Asset Management, LLC | 1,300,000 | $20.6M | 0.37% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 1,294,518 | $20.5M | 0.05% | +108,400+9.1% | Added |
| Citadel Advisors LLC | 1,287,542 | $20.4M | 0.02% | +359,302+38.7% | Added |
| Goldman Sachs Group Inc | 1,239,099 | $19.7M | 0.00% | −372,003−23.1% | Reduced |
| Dimensional Fund Advisors LP | 1,180,744 | $18.7M | 0.01% | −8,475−0.7% | Reduced |
| Candriam Luxembourg S.C.A. | 1,122,588 | $17.8M | 0.15% | +130,006+13.1% | Added |
| Panagora Asset Management Inc | 1,098,417 | $17.4M | 0.11% | −19,552−1.7% | Reduced |
| Invesco Ltd. | 1,086,168 | $17.2M | 0.00% | +50,463+4.9% | Added |
| Pinnacle Associates Ltd | 1,016,156 | $16.1M | 0.30% | −193,767−16.0% | Reduced |
| Principal Financial Group Inc | 984,664 | $15.6M | 0.01% | −3,222−0.3% | Reduced |
| Susquehanna International Group, LLP | 974,887 | $15.5M | 0.02% | −340,771−25.9% | Reduced |
| Jane Street Group, LLC | 917,764 | $14.6M | 0.02% | +38,064+4.3% | Added |
| Ensign Peak Advisors, Inc | 875,868 | $13.9M | 0.03% | +289,275+49.3% | Added |
| PFM Health Sciences, LP | 869,889 | $13.8M | 0.66% | +869,889 | New |
| Lord, Abbett & Co. LLC | 759,450 | $12.1M | 0.04% | −159,545−17.4% | Reduced |
| Rock Springs Capital Management LP | 759,365 | $12.1M | 0.32% | +646,745+574.3% | Added |
| Renaissance Technologies LLC | 734,640 | $11.7M | 0.02% | −483,400−39.7% | Reduced |
| Altium Capital Management LP | 725,000 | $11.5M | 6.66% | +240,000+49.5% | Added |
| Parkman Healthcare Partners LLC | 717,920 | $11.4M | 2.09% | −122,891−14.6% | Reduced |
| Rhenman & Partners Asset Management AB | 700,000 | $11.1M | 1.20% | −50,000−6.7% | Reduced |
| American Century Companies Inc | 699,116 | $11.1M | 0.01% | −1,207−0.2% | Reduced |
| Granahan Investment Management Inc | 681,377 | $10.8M | 0.39% | +254,625+59.7% | Added |
| Man Group plc | – | $10.5M | 0.03% | – | – |
| Rafferty Asset Management, LLC | 566,985 | $9.00M | 0.05% | +229,699+68.1% | Added |
| Bank of America Corp | 541,802 | $8.60M | 0.00% | +127,624+30.8% | Added |
| Hennion & Walsh Asset Management, Inc. | 523,074 | $8.30M | 0.53% | +7,795+1.5% | Added |
| Voya Investment Management LLC | 515,136 | $8.18M | 0.01% | +86,946+20.3% | Added |
| CM Management, LLC | 500,000 | $7.93M | 8.42% | 00.0% | Unchanged |
| Swiss National Bank | 480,800 | $7.63M | 0.01% | +4,700+1.0% | Added |
| Bridger Management, LLC | 467,220 | $7.41M | 2.72% | 00.0% | Unchanged |
| Sectoral Asset Management Inc | 464,112 | $7.37M | 1.43% | +27,665+6.3% | Added |
| Fisher Asset Management, LLC | 450,795 | $7.15M | 0.00% | −252,122−35.9% | Reduced |
| Decheng Capital Management III (Cayman), LLC | 415,880 | $6.60M | 2.20% | +415,880 | New |
| Schonfeld Strategic Advisors LLC | 392,500 | $6.23M | 0.06% | +15,531+4.1% | Added |
| Ikarian Capital, LLC | 390,162 | $6.19M | 2.30% | −57,538−12.9% | Reduced |
| ArrowMark Colorado Holdings LLC | 383,780 | $6.09M | 0.07% | +219,288+133.3% | Added |
| Tri Locum Partners LP | 369,912 | $5.87M | 1.88% | +72,105+24.2% | Added |
| Rhumbline Advisers | 364,396 | $5.78M | 0.01% | +449+0.1% | Added |
| Fred Alger Management, LLC | 354,859 | $5.63M | 0.03% | +316,201+817.9% | Added |
| Barclays PLC | 342,727 | $5.44M | 0.00% | +76,185+28.6% | Added |
| Squarepoint Ops LLC | 336,090 | $5.33M | 0.03% | +260,714+345.9% | Added |
| New York State Common Retirement Fund | 324,926 | $5.16M | 0.01% | +40,537+14.3% | Added |
| UBS Asset Management Americas Inc | 306,020 | $4.86M | 0.00% | +12,230+4.2% | Added |
| Alliancebernstein L.P. | 300,514 | $4.77M | 0.00% | 00.0% | Unchanged |
| Healthcare of Ontario Pension Plan Trust Fund | 300,000 | $4.76M | 0.02% | +300,000 | New |
| Credit Suisse AG | 293,041 | $4.65M | 0.00% | −24,678−7.8% | Reduced |
| Hillsdale Investment Management Inc. | 285,890 | $4.54M | 0.42% | −810−0.3% | Reduced |
| Moody Aldrich Partners LLC | 283,950 | $4.51M | 0.85% | +79,094+38.6% | Added |
| First Manhattan Co | 283,400 | $4.50M | 0.02% | −1,424,100−83.4% | Reduced |
| TD Asset Management Inc | 282,400 | $4.48M | 0.01% | +184,500+188.5% | Added |
| Primecap Management Co | 273,100 | $4.33M | 0.00% | 00.0% | Unchanged |
| Blair William & Co | 254,320 | $4.04M | 0.02% | −1,685−0.7% | Reduced |
| California State Teachers Retirement System | 246,379 | $3.91M | 0.01% | −26,805−9.8% | Reduced |
| Citigroup Inc | 245,551 | $3.90M | 0.01% | +50,869+26.1% | Added |
| Wells Fargo & Company | 242,843 | $3.85M | 0.00% | +18,796+8.4% | Added |
| Seven Eight Capital, LP | 238,930 | $3.79M | 0.44% | +141,946+146.4% | Added |
| Group One Trading, L.P. | 238,327 | $3.78M | 0.15% | +142,766+149.4% | Added |
| BNP Paribas Arbitrage, SA | 236,082 | $3.75M | 0.01% | −142,409−37.6% | Reduced |
| Sio Capital Management, LLC | 232,751 | $3.69M | 1.14% | −13,170−5.4% | Reduced |
| Manufacturers Life Insurance Company, The | 229,618 | $3.64M | 0.00% | +67,919+42.0% | Added |
| Deutsche Bank AG | 225,066 | $3.57M | 0.00% | −3,079,661−93.2% | Reduced |
| State of Wisconsin Investment Board | 219,902 | $3.49M | 0.01% | +925+0.4% | Added |