IGM BIOSCIENCES INC IGMS
COM · Common Stock · CUSIP 449585108
82
institutional holders
-11 vs Q3 2022
18.0m
shares reported held*
$305.7mreported value*
5 new
35 added
23 reduced
16 sold out
net bought ≈ $4.8m (+285.1k shares)
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($67.5k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $17.01. Options: 6 managers hold calls ($1.1m notional), 3 hold puts ($164.6k).
Trends to Q4 2022
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 93 |
| Q4 2022 | 82 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
CallsPuts
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $1.5m | $670.0k | 0.44 |
| Q4 2022 | $1.1m | $164.6k | 0.15 |
Biggest buyers
| FMR LLC | Added | +690.4k |
| Candriam S.C.A. | Added | +110.2k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +80.2k |
| VANGUARD GROUP INC | Added | +57.2k |
| D. E. Shaw & Co., Inc. | Added | +52.7k |
| Rhenman & Partners Asset Management AB | New | +50.0k |
| BlackRock Inc. | Added | +49.3k |
| MILLENNIUM MANAGEMENT LLC | Added | +43.0k |
| MARSHALL WACE, LLP | Added | +40.7k |
| Nuveen Asset Management, LLC | Added | +37.9k |
Biggest sellers
| T. Rowe Price Investment Management, Inc. | Sold out | -586.7k |
| ALKEON CAPITAL MANAGEMENT LLC | Reduced | -128.4k |
| GOLDMAN SACHS GROUP INC | Reduced | -50.3k |
| Woodline Partners LP | Reduced | -50.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | -39.6k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Sold out | -38.9k |
| Jump Financial, LLC | Sold out | -26.9k |
| SIMPLEX TRADING, LLC | Reduced | -20.4k |
| Cubist Systematic Strategies, LLC | Sold out | -19.8k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | Sold out | -14.7k |
Biggest calls
| Artal Group S.A. | Unchanged | $851.0k50.0k shares |
| CITADEL ADVISORS LLC | New | $199.0k11.7k shares |
| GROUP ONE TRADING LLC | Reduced | $11.9k700 shares |
| SIMPLEX TRADING, LLC | Reduced | $6.0k400 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
| Cutler Group LLC / CA | Reduced | $0100 shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $161.6k9.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $3.0k200 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ 13G · institution +10.3 pts · filed 2025-02-14 | 10.5% |
Fell to 5% or below in the last year: GLAZER CAPITAL, LLC (0.0%, 2025-11-13)
Holders, Q4 2022
| Manager | Shares | Change |
|---|---|---|
| Redmile Group, LLC 2.32% of their portfolio | 3.3m $56.7m | Unchanged |
| BAKER BROS. ADVISORS LP 0.32% of their portfolio | 3.2m $53.7m | Unchanged |
| Artal Group S.A. 2.40% of their portfolio | 2.5m $41.7m | Unchanged |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 2.2m $37.5m | Reduced -11.4k |
| ALKEON CAPITAL MANAGEMENT LLC 0.11% of their portfolio | 833.2k $14.2m | Reduced -128.4k |
| BlackRock Inc. 0.00% of their portfolio | 789.2k $13.4m | Added +49.3k |
| FMR LLC 0.00% of their portfolio | 691.0k $11.8m | Added +690.4k |
| VANGUARD GROUP INC 0.00% of their portfolio | 577.2k $9.8m | Added +57.2k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 484.7k $8.2m | Reduced -39.6k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 389.9k $6.6m | Added +52.7k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 334.2k $5.7m | Added +43.0k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 287.4k $4.9m | Added +40.7k |
| STATE STREET CORP 0.00% of their portfolio | 226.2k $3.8m | Added +4.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 198.9k $3.4m | Reduced -50.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 193.8k $3.3m | Added +10.7k |
| Candriam S.C.A. 0.02% of their portfolio | 159.0k $2.7m | Added +110.2k |
| SAMSARA BIOCAPITAL, LLC 0.57% of their portfolio | 154.7k $2.6m | Unchanged |
| Woodline Partners LP 0.04% of their portfolio | 150.0k $2.6m | Reduced -50.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 120.0k $2.0m | Added +6.4k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 92.8k $1.6m | Added +80.2k |
| MORGAN STANLEY 0.00% of their portfolio | 91.7k $1.6m | Reduced -8.3k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 90.2k $1.5m | Added +9.8k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 83.1k $1.4m | Added +37.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 71.3k $1.2m | Added +1.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 67.1k $1.1m | Added +787 |
| Bruce & Co., Inc. 0.24% of their portfolio | 55.0k $935.5k | Unchanged |
| Rhenman & Partners Asset Management AB 0.09% of their portfolio | 50.0k $850.5k | New |
| ExodusPoint Capital Management, LP 0.01% of their portfolio | 47.1k $801.0k | Added +21.6k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 45.7k $777.0k | Added +8 |
| RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio | 42.5k $723.2k | Added +1.9k |
| Eagle Bay Advisors LLC 0.40% of their portfolio | 41.6k $708.2k | Unchanged |
| Vident Investment Advisory, LLC 0.03% of their portfolio | 39.5k $671.6k | Reduced -4.7k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 37.7k $614.4k | Added +35 |
| TD Asset Management Inc 0.00% of their portfolio | 32.6k $553.8k | Unchanged |
| Endurant Capital Management LP 0.21% of their portfolio | 30.3k $515.7k | New |
| GSA CAPITAL PARTNERS LLP 0.06% of their portfolio | 29.9k $508.0k | Added +11.7k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.00% of their portfolio | 26.8k $456.4k | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 25.9k $440.6k | Added +1.6k |
| Swiss National Bank 0.00% of their portfolio | 24.5k $416.7k | Added +1.8k |
| New York Life Investment Management LLC 0.00% of their portfolio | 21.2k $360.1k | Added +2.3k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 19.9k $338.0k | Reduced -1.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 18.0k $305.7k | Added +10.1k |
| PUTNAM INVESTMENTS LLC 0.00% of their portfolio | 15.1k $257.7k | Reduced -5.1k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 14.7k $251.0k | Added +491 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 13.0k $221.6k | Added +597 |
| SIMPLEX TRADING, LLC 0.01% of their portfolio | 11.4k $193.0k | Reduced -20.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 11.2k $191.0k | Added +223 |
| PDT Partners, LLC 0.03% of their portfolio | 10.6k $181.0k | Reduced -2.5k |
| DekaBank Deutsche Girozentrale 0.00% of their portfolio | 9.1k $147.0k | Unchanged |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 8.4k $142.7k | Added +2.9k |
| VIRTUS ADVISERS, LLC 0.06% of their portfolio | 7.1k $120.4k | Reduced -241 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 6.5k $110.5k | Added +6 |
| BARCLAYS PLC 0.00% of their portfolio | 5.8k $98.0k | First filing |
| MetLife Investment Management, LLC 0.00% of their portfolio | 5.7k $97.0k | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 5.4k $91.0k | Added +1.1k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 5.3k $90.6k | Reduced -4.4k |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 5.0k $85.1k | Reduced -19 |
| Legal & General Group Plc 0.00% of their portfolio | 4.0k $68.9k | Added +399 |
| UBS Group AG 0.00% of their portfolio | 4.0k $67.3k | Added +3.7k |
| Allspring Global Investments Holdings, LLC 0.00% of their portfolio | 2.7k $45.4k | Reduced -59 |
| Aquatic Capital Management LLC 0.00% of their portfolio | 2.5k $42.0k | New |
| AMALGAMATED BANK 0.00% of their portfolio | 1.6k $27.0k | Unchanged |
| SIGNATUREFD, LLC 0.00% of their portfolio | 777 $13.2k | Reduced -113 |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 756 $12.9k | Unchanged |
| CITIGROUP INC 0.00% of their portfolio | 695 $11.8k | Reduced -46 |
| Lindbrook Capital, LLC 0.00% of their portfolio | 690 $11.7k | Reduced -70 |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 627 $15.1k | Unchanged |
| Metropolitan Life Insurance Co/NY 0.00% of their portfolio | 626 $10.6k | Unchanged |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 598 $10.0k | Reduced -1.4k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 569 $10.0k | Unchanged |
| US BANCORP \DE\ 0.00% of their portfolio | 432 $7.3k | Reduced -1.0k |
| Endurance Wealth Management, Inc. 0.00% of their portfolio | 300 $5.0k | Unchanged |
| China Universal Asset Management Co., Ltd. 0.00% of their portfolio | 296 $5.0k | Added +24 |
| QUADRANT CAPITAL GROUP LLC 0.00% of their portfolio | 212 $3.6k | Added +116 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 125 $2.1k | Reduced -284 |
| Cutler Group LLC / CA 0.00% of their portfolio | 100 $1.0k | Reduced -10 |
| Daiwa Securities Group Inc. 0.00% of their portfolio | 88 $1.0k | Unchanged |
| Ellevest, Inc. 0.00% of their portfolio | 29 $493 | Reduced -42 |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 24 $0 | New |
| Parallel Advisors, LLC 0.00% of their portfolio | 13 $221 | Unchanged |
| DARK FOREST CAPITAL MANAGEMENT LP 0.00% of their portfolio | 11 $187 | Added +9 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |