Vault-13

IMMUNOGEN INC IMGN

COM · Common Stock · CUSIP 45253H101 · ISIN US45253H1014

204 institutional holders -18 vs Q3 2022
202,844,974202.8m shares reported held*
$1.0bnreported value*
23 new 68 added 68 reduced 44 sold out net bought ≈ $9.2m (+2.1m 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 ($5.6m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $4.98. Options: 13 managers hold calls ($6.8m notional), 8 hold puts ($3.4m).

Trends to Q4 2022

Institutional holders

Managers reporting a position, each quarter

0100200300Q3 22: 222Q4 22: 204204Q3 22Q4 22
Numbers
QuarterHolders
Q3 2022222
Q4 2022204

Calls vs puts

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

CallsPuts
$0$2m$4m$6m$8mQ3 22 calls: $5.7mQ3 22 puts: $1.2mQ3 22P/C 0.21Q4 22 calls: $6.8mQ4 22 puts: $3.4mQ4 22P/C 0.51
Numbers
QuarterCallsPutsP/C
Q3 2022$5.7m$1.2m0.21
Q4 2022$6.8m$3.4m0.51

Biggest buyers

Woodline Partners LP New +5,027,027+5.0m
MAVERICK CAPITAL LTD Added +3,325,815+3.3m
ADAGE CAPITAL PARTNERS GP, L.L.C. Added +3,219,000+3.2m
JENNISON ASSOCIATES LLC Added +2,942,879+2.9m
STATE STREET CORP Added +2,913,240+2.9m
GOLDMAN SACHS GROUP INC Added +1,578,901+1.6m
SEGALL BRYANT & HAMILL, LLC Added +1,395,603+1.4m
Sofinnova Investments, Inc. Added +1,183,761+1.2m
UBS Group AG Added +800,497+800.5k
Nuveen Asset Management, LLC Added +634,141+634.1k

Biggest sellers

DEERFIELD MANAGEMENT COMPANY, L.P. Reduced -7,381,891-7.4m
Clearbridge Investments, LLC Sold out -4,825,543-4.8m
RENAISSANCE TECHNOLOGIES LLC Sold out -1,705,140-1.7m
CITADEL ADVISORS LLC Reduced -1,413,786-1.4m
VANGUARD GROUP INC Reduced -1,246,413-1.2m
HealthCor Management, L.P. Reduced -1,150,000-1.1m
MILLENNIUM MANAGEMENT LLC Reduced -907,117-907.1k
WELLINGTON MANAGEMENT GROUP LLP Reduced -780,797-780.8k
Monarch Partners Asset Management LLC Sold out -674,845-674.8k
MORGAN STANLEY Reduced -488,254-488.3k

Biggest calls

MILLENNIUM MANAGEMENT LLC Reduced $1.5m300.0k shares
SILVERARC CAPITAL MANAGEMENT, LLC New $1.2m232.0k shares
CITADEL ADVISORS LLC Added $1.1m212.4k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $992.5k200.1k shares
BOOTHBAY FUND MANAGEMENT, LLC New $706.8k142.5k shares
GROUP ONE TRADING LLC Reduced $480.6k96.9k shares
JANE STREET GROUP, LLC Added $450.9k90.9k shares
SIMPLEX TRADING, LLC Added $286.0k57.7k shares
Parallax Volatility Advisers, L.P. Reduced $161.2k32.5k shares
Worth Venture Partners, LLC New $3.8k25.5k shares

Biggest puts

BOOTHBAY FUND MANAGEMENT, LLC New $1.8m356.2k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $1.4m276.3k shares
CITADEL ADVISORS LLC Added $199.9k40.3k shares
GROUP ONE TRADING LLC Reduced $49.6k10.0k shares
SIMPLEX TRADING, LLC Reduced $22.0k4.5k shares
Cutler Group LLC / CA Reduced $12.0k41.8k shares
Worth Venture Partners, LLC New $3.2k63.9k 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.

Holders, Q4 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 RA CAPITAL MANAGEMENT, L.P. 2.20% of their portfolio BOSTON, MA 21,853,95821.9m $108.4m $108.4m 2.20% Added +112.5k +112,500
2 BlackRock Inc. 0.00% of their portfolio New York, NY 18,016,00218.0m $89.4m $89.4m 0.00% Added +571.0k +570,976
3 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 17,508,11317.5m $86.8m $86.8m 0.01% Added +2.9m +2,913,240
4 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 14,378,43514.4m $71.3m $71.3m 0.00% Reduced -1.2m -1,246,413
5 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.13% of their portfolio Boston, MA 11,119,00011.1m $55.2m $55.2m 0.13% Added +3.2m +3,219,000
6 WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio Boston, MA 9,226,7089.2m $45.8m $45.8m 0.01% Reduced -780.8k -780,797
7 JENNISON ASSOCIATES LLC 0.05% of their portfolio NEW YORK, NY 9,140,3599.1m $45.3m $45.3m 0.05% Added +2.9m +2,942,879
8 Redmile Group, LLC 1.73% of their portfolio LARKSPUR, CA 8,532,8178.5m $42.3m $42.3m 1.73% Reduced -15.3k -15,328
9 MAVERICK CAPITAL LTD 0.83% of their portfolio DALLAS, TX 6,878,9436.9m $34.1m $34.1m 0.83% Added +3.3m +3,325,815
10 DEERFIELD MANAGEMENT COMPANY, L.P. 0.65% of their portfolio New York, NY 6,358,3146.4m $31.5m $31.5m 0.65% Reduced -7.4m -7,381,891
11 Woodline Partners LP 0.34% of their portfolio San Francisco, CA 5,027,0275.0m $24.9m $24.9m 0.34% New
12 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 4,255,2204.3m $21.1m $21.1m 0.00% Reduced -488.3k -488,254
13 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 3,839,0903.8m $19.0m $19.0m 0.00% Added +131.8k +131,812
14 BRAIDWELL LP 0.58% of their portfolio STAMFORD, CT 3,474,4973.5m $17.2m $17.2m 0.58% First filing
15 TWO SIGMA ADVISERS, LP 0.05% of their portfolio NEW YORK, NY 3,279,1183.3m $16.3m $16.3m 0.05% Added +266.7k +266,700
16 JANUS HENDERSON GROUP PLC 0.01% of their portfolio LONDON, X0 3,147,5763.1m $15.6m $15.6m 0.01% Added +526.6k +526,592
17 DEUTSCHE BANK AG\ 0.01% of their portfolio FRANKFURT AM MAIN, 2M 3,037,5603.0m $15.1m $15.1m 0.01% Added +31.1k +31,075
18 Candriam S.C.A. 0.09% of their portfolio STRASSEN, N4 2,689,2962.7m $13.3m $13.3m 0.09% Reduced -165.3k -165,339
19 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 2,643,2692.6m $13.1m $13.1m 0.00% Added +1.6m +1,578,901
20 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 2,404,0562.4m $11.9m $11.9m 0.00% Reduced -136.8k -136,795
21 SEGALL BRYANT & HAMILL, LLC 0.13% of their portfolio CHICAGO, IL 2,274,5642.3m $11.3m $11.3m 0.13% Added +1.4m +1,395,603
22 Granahan Investment Management, LLC 0.33% of their portfolio WALTHAM, MA 2,185,9582.2m $10.8m $10.8m 0.33% Added +309.0k +308,998
23 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 2,148,5362.1m $10.7m $10.7m 0.00% Added +21.7k +21,682
24 TWO SIGMA INVESTMENTS, LP 0.03% of their portfolio NEW YORK, NY 1,977,1272.0m $9.8m $9.8m 0.03% Reduced -447.6k -447,630
25 Sofinnova Investments, Inc. 0.51% of their portfolio Menlo Park, CA 1,686,1541.7m $8.4m $8.4m 0.51% Added +1.2m +1,183,761
26 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 1,654,8741.7m $8.2m $8.2m 0.00% Added +468.5k +468,537
27 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 1,561,5841.6m $7.7m $7.7m 0.00% Added +36.5k +36,478
28 Rhenman & Partners Asset Management AB 0.78% of their portfolio Stockholm, V7 1,500,0001.5m $7.4m $7.4m 0.78% Added +400.0k +400,000
29 QVT Financial LP 0.41% of their portfolio New York, NY 1,375,9001.4m $6.8m $6.8m 0.41% Unchanged
30 Rafferty Asset Management, LLC 0.06% of their portfolio New York, NY 1,368,2131.4m $6.8m $6.8m 0.06% Added +420.8k +420,762
31 PINNACLE ASSOCIATES LTD 0.14% of their portfolio NEW YORK, NY 1,333,5581.3m $6.6m $6.6m 0.14% Reduced -15.4k -15,405
32 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 1,288,1801.3m $6.4m $6.4m 0.00% Added +634.1k +634,141
33 TANG CAPITAL MANAGEMENT LLC 0.92% of their portfolio SAN DIEGO, CA 1,274,8531.3m $6.3m $6.3m 0.92% Reduced -225.1k -225,147
34 FMR LLC 0.00% of their portfolio BOSTON, MA 1,197,2231.2m $5.9m $5.9m 0.00% Added +91.5k +91,494
35 PRUDENTIAL FINANCIAL INC 0.01% of their portfolio NEWARK, NJ 1,132,0781.1m $5.6m $5.6m 0.01% Reduced -29.3k -29,316
36 PUTNAM INVESTMENTS LLC 0.01% of their portfolio BOSTON, MA 1,121,3121.1m $5.6m $5.6m 0.01% Added +90.2k +90,220
37 PANAGORA ASSET MANAGEMENT INC 0.03% of their portfolio BOSTON, MA 1,071,3511.1m $5.3m $5.3m 0.03% Reduced -9.7k -9,657
38 UBS Group AG 0.00% of their portfolio ZURICH, V8 945,688945.7k $4.7m $4.7m 0.00% Added +800.5k +800,497
39 Lombard Odier Asset Management (Switzerland) SA 0.37% of their portfolio PETIT-LANCY, V8 936,501936.5k $4.6m $4.6m 0.37% Unchanged
40 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 933,720933.7k $4.6m $4.6m 0.01% Reduced -907.1k -907,117
41 Fisher Asset Management, LLC 0.00% of their portfolio PLANO, TX 852,032852.0k $4.2m $4.2m 0.00% Added +267.3k +267,257
42 SECTORAL ASSET MANAGEMENT INC 0.77% of their portfolio MONTREAL, A8 803,944803.9k $4.0m $4.0m 0.77% Reduced -44.8k -44,800
43 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 789,306789.3k $3.9m $3.9m 0.00% Reduced -26.8k -26,766
44 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 780,649780.6k $3.9m $3.9m 0.00% First filing
45 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 728,183728.2k $3.6m $3.6m 0.00% Reduced -304.3k -304,318
46 PRIMECAP MANAGEMENT CO/CA/ 0.00% of their portfolio PASADENA, CA 700,227700.2k $3.5m $3.5m 0.00% Reduced -28.1k -28,100
47 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 602,926602.9k $3.0m $3.0m 0.00% Reduced -301.6k -301,572
48 CM Management, LLC 2.96% of their portfolio GULF BREEZE, FL 500,000500.0k $2.5m $2.5m 2.96% Unchanged
49 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 485,378485.4k $2.4m $2.4m 0.00% Reduced -193.8k -193,754
50 Swiss National Bank 0.00% of their portfolio ZURICH, V8 479,600479.6k $2.4m $2.4m 0.00% Added +8.9k +8,900
51 KENNEDY CAPITAL MANAGEMENT LLC 0.07% of their portfolio ST LOUIS, MO 477,242477.2k $2.4m $2.4m 0.07% Reduced -417 -417
52 Hennion & Walsh Asset Management, Inc. 0.14% of their portfolio Parsippany, NJ 469,637469.6k $2.3m $2.3m 0.14% Added +136.8k +136,763
53 SILVERARC CAPITAL MANAGEMENT, LLC 0.70% of their portfolio BOSTON, MA 407,269407.3k $2.0m $2.0m 0.70% Reduced -31.4k -31,426
54 Balyasny Asset Management L.P. 0.01% of their portfolio Chicago, IL 386,794386.8k $1.9m $1.9m 0.01% New
55 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 363,564363.6k $1.8m $1.8m 0.00% Added +19.3k +19,324
56 BLAIR WILLIAM & CO/IL 0.01% of their portfolio CHICAGO, IL 344,595344.6k $1.7m $1.7m 0.01% Added +77.8k +77,750
57 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 324,636324.6k $1.6m $1.6m 0.00% Reduced -250.0k -250,003
58 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 322,548322.5k $1.6m $1.6m 0.00% Added +3.2k +3,220
59 CREDIT SUISSE AG/ 0.00% of their portfolio ZURICH, V8 290,105290.1k $1.4m $1.4m 0.00% Added +12.4k +12,436
60 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 288,664288.7k $1.4m $1.4m 0.00% Reduced -35.4k -35,409
61 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 287,749287.7k $1.4m $1.4m 0.00% Added +163.0k +162,984
62 Kercheville Advisors, LLC 0.95% of their portfolio San Antonio, TX 278,627278.6k $1.4m $1.4m 0.95% Added +40.3k +40,325
63 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 258,567258.6k $1.3m $1.3m 0.00% Added +3.0k +2,993
64 Cubist Systematic Strategies, LLC 0.01% of their portfolio STAMFORD, CT 257,772257.8k $1.3m $1.3m 0.01% Reduced -103.0k -102,998
65 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 247,079247.1k $1.2m $1.2m 0.00% Added +2.5k +2,477
66 Squarepoint Ops LLC 0.01% of their portfolio NEW YORK, NY 243,195243.2k $1.2m $1.2m 0.01% Reduced -106.8k -106,815
67 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 228,415228.4k $1.1m $1.1m 0.00% Reduced -7.8k -7,785
68 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 218,627218.6k $1.1m $1.1m 0.00% Added +11.6k +11,597
69 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 216,467216.5k $1.1m $1.1m 0.00% Added +83.0k +82,963
70 Man Group plc 0.00% of their portfolio LONDON, X0 215,762215.8k $1.1m $1.1m 0.00% New
71 IRONWOOD INVESTMENT MANAGEMENT LLC 0.65% of their portfolio BOSTON, MA 198,833198.8k $986.2k $986.2k 0.65% Added +21.2k +21,233
72 STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio MADISON, WI 192,475192.5k $954.7k $954.7k 0.00% Reduced -12.2k -12,242
73 TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.01% of their portfolio FRANKFORT, KY 173,255173.3k $859.0k $859.0k 0.01% Added +15.6k +15,570
74 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 169,094169.1k $838.0k $838.0k 0.00% Added +2.4k +2,409
75 HealthCor Management, L.P. 0.68% of their portfolio NEW YORK, NY 150,000150.0k $744.0k $744.0k 0.68% Reduced -1.1m -1,150,000
76 Birchview Capital, LP 0.53% of their portfolio BURLINGTON, VT 150,000150.0k $744.0k $744.0k 0.53% Unchanged
77 ALPS ADVISORS INC 0.01% of their portfolio Denver, CO 149,640149.6k $742.2k $742.2k 0.01% Added +29.2k +29,172
78 Fernwood Investment Management, LLC 0.30% of their portfolio QUINCY, MA 146,180146.2k $725.1k $725.1k 0.30% Reduced -2.7k -2,660
79 GROUP ONE TRADING LLC 0.02% of their portfolio CHICAGO, IL 139,058139.1k $689.7k $689.7k 0.02% Added +74.2k +74,158
80 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 122,316122.3k $606.7k $606.7k 0.00% Reduced -411.3k -411,324
81 ClariVest Asset Management LLC 0.03% of their portfolio SAN DIEGO, CA 117,000117.0k $581.0k $581.0k 0.03% Reduced -1.8k -1,800
82 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 113,008113.0k $560.0k $560.0k 0.00% Reduced -4.7k -4,722
83 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 110,444110.4k $547.8k $547.8k 0.00% Unchanged
84 MACKENZIE FINANCIAL CORP 0.00% of their portfolio TORONTO ONTARIO, A6 105,903105.9k $525.3k $525.3k 0.00% Added +8.9k +8,868
85 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 105,050105.0k $521.0k $521.0k 0.00% Added +4.2k +4,227
86 AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio New York, NY 101,562101.6k $503.7k $503.7k 0.00% Reduced -370 -370
87 Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio SEOUL, M5 94,12894.1k $466.9k $466.9k 0.00% Added +78 +78
88 TWIN FOCUS CAPITAL PARTNERS, LLC 0.10% of their portfolio Boston, MA 93,87593.9k $465.6k $465.6k 0.10% Reduced -138 -138
89 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 91,86991.9k $460.3k $460.3k 0.00% Added +76.1k +76,110
90 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 91,08091.1k $451.8k $451.8k 0.00% Reduced -379 -379
91 Legal & General Group Plc 0.00% of their portfolio London, X0 86,19186.2k $427.5k $427.5k 0.00% Added +1.2k +1,236
92 BAXTER BROS INC 0.07% of their portfolio RIVERSIDE, CT 85,55085.5k $424.0k $424.0k 0.07% Reduced -1.4k -1,450
93 STRS OHIO 0.00% of their portfolio COLUMBUS, OH 84,40084.4k $418.0k $418.0k 0.00% Reduced -47.6k -47,600
94 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 83,38983.4k $413.6k $413.6k 0.00% Reduced -446 -446
95 E Fund Management Co., Ltd. 0.03% of their portfolio GUANGZHOU, F4 71,70571.7k $356.0k $356.0k 0.03% Added +6.6k +6,577
96 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio TALLAHASSEE, FL 70,38770.4k $349.1k $349.1k 0.00% Reduced -7.1k -7,100
97 DekaBank Deutsche Girozentrale 0.00% of their portfolio FRANKFURT, 2M 69,90069.9k $355.0k $355.0k 0.00% Unchanged
98 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 68,88768.9k $341.7k $341.7k 0.00% Added +40.9k +40,873
99 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 67,91267.9k $336.2k $336.2k 0.00% Reduced -10.7k -10,735
100 Parallax Volatility Advisers, L.P. 0.01% of their portfolio San Francisco, CA 67,15367.2k $333.1k $333.1k 0.01% New