Vault-13

IGM BIOSCIENCES INC IGMS

COM · Common Stock · CUSIP 449585108

83 institutional holders -5 vs Q1 2024
22,266,70722.3m shares reported held*
$153.0mreported value*
11 new 39 added 16 reduced 18 sold out net sold ≈ $5.4m (-778.7k 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 ($22.7k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $6.87. Options: 3 managers hold calls ($271.4k notional), 3 hold puts ($113.4k).

Trends to Q2 2024

Institutional holders

Managers reporting a position, each quarter

050100Q3 22: 93Q4 22: 82Q1 23: 75Q2 23: 80Q3 23: 80Q4 23: 73Q1 24: 88Q2 24: 8383Q3 22Q1 23Q3 23Q1 24Q2 24
Numbers
QuarterHolders
Q3 202293
Q4 202282
Q1 202375
Q2 202380
Q3 202380
Q4 202373
Q1 202488
Q2 202483

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q4 22: 40 bought or addedQ4 22: 39 cut or sold outQ4 22Q1 23: 35 bought or addedQ1 23: 40 cut or sold outQ2 23: 57 bought or addedQ2 23: 31 cut or sold outQ2 23Q3 23: 41 bought or addedQ3 23: 35 cut or sold outQ4 23: 37 bought or addedQ4 23: 45 cut or sold outQ4 23Q1 24: 48 bought or addedQ1 24: 33 cut or sold outQ2 24: 50 bought or addedQ2 24: 34 cut or sold outQ2 24
Numbers
QuarterBought or addedCut or sold out
Q4 20224039
Q1 20233540
Q2 20235731
Q3 20234135
Q4 20233745
Q1 20244833
Q2 20245034

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$100k$200k$300kQ3 23 calls: $144.6kQ3 23 puts: $9.2kQ3 23P/C 0.06Q4 23 calls: $221.9kQ4 23 puts: $31.7kQ4 23P/C 0.14Q1 24 calls: $107.1kQ1 24 puts: $49.2kQ1 24P/C 0.46Q2 24 calls: $271.4kQ2 24 puts: $113.4kQ2 24P/C 0.42
Numbers
QuarterCallsPutsP/C
Q3 2023$144.6k$9.2k0.06
Q4 2023$221.9k$31.7k0.14
Q1 2024$107.1k$49.2k0.46
Q2 2024$271.4k$113.4k0.42

Biggest buyers

Artal Group S.A. Added +250,000+250.0k
PRICE T ROWE ASSOCIATES INC /MD/ Added +187,068+187.1k
STATE STREET CORP Added +138,347+138.3k
BlackRock Inc. Added +125,118+125.1k
Corton Capital Inc. New +63,336+63.3k
RENAISSANCE TECHNOLOGIES LLC Added +60,593+60.6k
GOLDMAN SACHS GROUP INC Added +55,294+55.3k
ExodusPoint Capital Management, LP Added +51,180+51.2k
Hudson Bay Capital Management LP New +46,119+46.1k
GSA CAPITAL PARTNERS LLP Added +43,583+43.6k

Biggest sellers

RA CAPITAL MANAGEMENT, L.P. Sold out -937,500-937.5k
FMR LLC Reduced -498,468-498.5k
MILLENNIUM MANAGEMENT LLC Reduced -303,848-303.8k
MORGAN STANLEY Reduced -191,774-191.8k
JACOBS LEVY EQUITY MANAGEMENT, INC Sold out -78,580-78.6k
Trexquant Investment LP Sold out -24,177-24.2k
Walleye Capital LLC Sold out -20,050-20.1k
JANE STREET GROUP, LLC Reduced -17,377-17.4k
EntryPoint Capital, LLC Sold out -15,801-15.8k
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC Reduced -11,703-11.7k

Biggest calls

MILLENNIUM MANAGEMENT LLC New $206.1k30.0k shares
CITADEL ADVISORS LLC Reduced $65.3k9.5k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP New $86.6k12.6k shares
CITADEL ADVISORS LLC Reduced $26.8k3.9k 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.

HolderStakeChangeShares Last filed
PRICE T ROWE ASSOCIATES INC /MD/ 13G · institution +10.3 pts · filed 2025-02-14 10.5% +10.3 pts 3.6m 2025-02-14

Fell to 5% or below in the last year: GLAZER CAPITAL, LLC (0.0%, 2025-11-13)

Holders, Q2 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BAKER BROS. ADVISORS LP 0.36% of their portfolio NEW YORK, NY 4,090,3164.1m $28.1m $28.1m 0.36% Added +2.0k +1,994
2 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 4,075,0914.1m $28.0m $28.0m 0.00% Added +187.1k +187,068
3 Artal Group S.A. 0.59% of their portfolio LUXEMBOURG, N4 3,330,4223.3m $22.9m $22.9m 0.59% Added +250.0k +250,000
4 Redmile Group, LLC 1.28% of their portfolio LARKSPUR, CA 3,072,4783.1m $21.1m $21.1m 1.28% Unchanged
5 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 1,333,9131.3m $9.2m $9.2m 0.00% Added +55.3k +55,294
6 BlackRock Inc. 0.00% of their portfolio New York, NY 883,081883.1k $6.1m $6.1m 0.00% Added +125.1k +125,118
7 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 878,621878.6k $6.0m $6.0m 0.00% Added +25.0k +24,963
8 FMR LLC 0.00% of their portfolio BOSTON, MA 818,873818.9k $5.6m $5.6m 0.00% Reduced -498.5k -498,468
9 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 457,616457.6k $3.1m $3.1m 0.00% Added +138.3k +138,347
10 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 391,213391.2k $2.7m $2.7m 0.00% Reduced -303.8k -303,848
11 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 367,681367.7k $2.5m $2.5m 0.00% Added +31.7k +31,676
12 Rhenman & Partners Asset Management AB 0.13% of their portfolio Stockholm, V7 195,000195.0k $1.3m $1.3m 0.13% Unchanged
13 TD Asset Management Inc 0.00% of their portfolio Toronto, A6 164,472164.5k $1.1m $1.1m 0.00% Added +5.3k +5,350
14 SAMSARA BIOCAPITAL, LLC 0.22% of their portfolio PALO ALTO, CA 154,664154.7k $1.1m $1.1m 0.22% Unchanged
15 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 134,727134.7k $925.6k $925.6k 0.00% Reduced -2.5k -2,509
16 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 132,330132.3k $909.1k $909.1k 0.00% Added +11.2k +11,212
17 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 131,065131.1k $900.4k $900.4k 0.00% Added +37.9k +37,902
18 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 111,511111.5k $766.1k $766.1k 0.00% Reduced -191.8k -191,774
19 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 108,693108.7k $746.7k $746.7k 0.00% Added +60.6k +60,593
20 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 107,267107.3k $736.9k $736.9k 0.00% Added +36.5k +36,491
21 Bruce & Co., Inc. 0.23% of their portfolio CHICAGO, IL 100,000100.0k $687.0k $687.0k 0.23% Added +35.0k +35,000
22 Woodline Partners LP 0.00% of their portfolio San Francisco, CA 75,00075.0k $515.2k $515.2k 0.00% Unchanged
23 ExodusPoint Capital Management, LP 0.01% of their portfolio NEW YORK, NY 71,50371.5k $491.0k $491.0k 0.01% Added +51.2k +51,180
24 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 68,96569.0k $473.8k $473.8k 0.00% Added +11.8k +11,775
25 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 68,92968.9k $473.5k $473.5k 0.00% Reduced -1.6k -1,572
26 Pennant Investors, LP 0.12% of their portfolio Summit, NJ 64,90064.9k $445.9k $445.9k 0.12% Unchanged
27 Corton Capital Inc. 0.23% of their portfolio Carrying Place, A6 63,33663.3k $435.1k $435.1k 0.23% New
28 GSA CAPITAL PARTNERS LLP 0.03% of their portfolio LONDON, X0 61,98162.0k $426.0k $426.0k 0.03% Added +43.6k +43,583
29 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 53,98054.0k $370.8k $370.8k 0.00% Added +4.4k +4,427
30 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 50,34750.3k $345.9k $345.9k 0.00% Added +33.0k +33,012
31 Hudson Bay Capital Management LP 0.00% of their portfolio STAMFORD, CT 46,11946.1k $316.8k $316.8k 0.00% New
32 Eagle Bay Advisors LLC 0.19% of their portfolio NEW YORK, NY 44,63544.6k $306.6k $306.6k 0.19% Unchanged
33 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 41,23041.2k $283.2k $283.2k 0.00% Added +8.9k +8,930
34 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 40,74940.7k $279.9k $279.9k 0.00% Unchanged
35 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 37,03437.0k $254.4k $254.4k 0.00% Reduced -2.4k -2,419
36 Susquehanna Portfolio Strategies, LLC 0.01% of their portfolio Bala Cynwyd, PA 30,20930.2k $207.5k $207.5k 0.01% Unchanged
37 Point72 Asset Management, L.P. 0.00% of their portfolio STAMFORD, CT 27,24627.2k $187.2k $187.2k 0.00% New
38 Verition Fund Management LLC 0.00% of their portfolio GREENWICH, CT 26,12026.1k $179.4k $179.4k 0.00% New
39 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 24,31924.3k $167.1k $167.1k 0.00% Added +2.0k +2,047
40 PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio BOSTON, MA 23,40623.4k $160.8k $160.8k 0.00% Added +87 +87
41 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 22,72622.7k $156.1k $156.1k 0.00% Added +2.6k +2,635
42 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 22,34022.3k $154.0k $154.0k 0.00% Added +22.0k +22,038
43 EXCHANGE TRADED CONCEPTS, LLC 0.00% of their portfolio Oklahoma City, OK 21,30721.3k $146.4k $146.4k 0.00% Reduced -6.6k -6,628
44 XTX Topco Ltd 0.01% of their portfolio LONDON, X0 20,40820.4k $140.2k $140.2k 0.01% Added +8.5k +8,467
45 Jump Financial, LLC 0.00% of their portfolio Chicago, IL 19,20019.2k $131.9k $131.9k 0.00% New
46 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 16,79816.8k $115.4k $115.4k 0.00% Reduced -309 -309
47 SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.00% of their portfolio BALA CYNWYD, PA 16,02816.0k $110.1k $110.1k 0.00% Reduced -11.7k -11,703
48 TUDOR INVESTMENT CORP ET AL 0.00% of their portfolio STAMFORD, CT 14,53714.5k $99.9k $99.9k 0.00% New
49 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 14,52714.5k $99.8k $99.8k 0.00% Reduced -4.5k -4,527
50 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 14,14614.1k $97.2k $97.2k 0.00% Added +2.5k +2,474
51 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 13,74313.7k $94.4k $94.4k 0.00% Reduced -17.4k -17,377
52 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 12,23012.2k $84.0k $84.0k 0.00% New
53 AlphaQuest LLC 0.01% of their portfolio New York, NY 11,91311.9k $81.8k $81.8k 0.01% Added +5.0k +4,961
54 VIRTUS ADVISERS, LLC 0.04% of their portfolio HARTFORD, CT 11,40111.4k $78.3k $78.3k 0.04% Reduced -1.9k -1,931
55 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 10,84910.8k $74.5k $74.5k 0.00% Added +5.3k +5,302
56 CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio RALEIGH, NC 10,20010.2k $70.1k $70.1k 0.00% Unchanged
57 UBS Group AG 0.00% of their portfolio ZURICH, V8 8,4078.4k $57.8k $57.8k 0.00% Reduced -4.9k -4,924
58 Corebridge Financial, Inc. 0.00% of their portfolio HOUSTON, TX 8,1628.2k $56.1k $56.1k 0.00% First filing
59 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 6,5126.5k $44.7k $44.7k 0.00% Added +18 +18
60 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 6,5086.5k $44.7k $44.7k 0.00% First filing
61 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 5,1335.1k $35.3k $35.3k 0.00% Added +294 +294
62 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 3,9063.9k $26.8k $26.8k 0.00% Reduced -6 -6
63 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 3,6283.6k $24.9k $24.9k 0.00% Added +3.4k +3,370
64 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 3,3203.3k $22.8k $22.8k 0.00% Added +796 +796
65 Cubist Systematic Strategies, LLC 0.00% of their portfolio STAMFORD, CT 3,3003.3k $22.7k $22.7k 0.00% New
66 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 1,9792.0k $13.6k $13.6k 0.00% Reduced -11.2k -11,184
67 Legal & General Group Plc 0.00% of their portfolio London, X0 1,3611.4k $9.3k $9.3k 0.00% Added +338 +338
68 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 1,3271.3k $9.1k $9.1k 0.00% Unchanged
69 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 1,0991.1k $7.5k $7.5k 0.00% Reduced -237 -237
70 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 759759 $5.0k $5.0k 0.00% New
71 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 737737 $5.1k $5.1k 0.00% Added +662 +662
72 COMERICA BANK 0.00% of their portfolio DALLAS, TX 617617 $4.2k $4.2k 0.00% Unchanged
73 LANARK FINANCIAL, INC. 0.00% of their portfolio BIRMINGHAM, AL 500500 $3.0k $3.0k 0.00% Added +350 +350
74 Quarry LP 0.00% of their portfolio NEW YORK, NY 394394 $2.7k $2.7k 0.00% New
75 AMALGAMATED BANK 0.00% of their portfolio NEW YORK, NY 351351 $2.0k $2.0k 0.00% Unchanged
76 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 304304 $2.1k $2.1k 0.00% Added +300 +300
77 SIGNATUREFD, LLC 0.00% of their portfolio ATLANTA, GA 191191 $1.3k $1.3k 0.00% Added +4 +4
78 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 5959 $405 $405 0.00% New
79 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 2323 $158 $158 0.00% Added +16 +16
80 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 1717 $117 $117 0.00% Unchanged
81 CWM, LLC 0.00% of their portfolio OMAHA, NE 99 $0 $0 0.00% Added +8 +8
82 Farther Finance Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 99 $61 $61 0.00% Unchanged
83 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged