Vault-13

ZURA BIO LTD ZURA

CLASS A ORD SHS · Common Stock · CUSIP G9TY5A101

95 institutional holders +1 vs Q1 2026
72,935,66972.9m shares reported held*
76.1% of all shares outstanding*
$428.9mreported value*
26 new 32 added 19 reduced 24 sold out net bought ≈ $36.1m (+6.1m 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. Holder counts are more reliable. Shares outstanding: 95.8m as of 2026-08-11, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $5.88. Options: 3 managers hold calls ($837.8k notional), 2 hold puts ($630.7k).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

050100Q1 23: 3Q2 23: 39Q3 23: 42Q4 23: 45Q1 24: 46Q2 24: 58Q3 24: 78Q4 24: 88Q1 25: 74Q2 25: 65Q3 25: 66Q4 25: 74Q1 26: 94Q2 26: 9595Q1 23Q4 23Q3 24Q2 25Q2 26
Numbers
QuarterHolders
Q1 20233
Q2 202339
Q3 202342
Q4 202345
Q1 202446
Q2 202458
Q3 202478
Q4 202488
Q1 202574
Q2 202565
Q3 202566
Q4 202574
Q1 202694
Q2 202695

Buyers vs sellers

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

Bought or addedCut or sold out
1000100Q3 24: 53 bought or addedQ3 24: 13 cut or sold outQ4 24: 51 bought or addedQ4 24: 24 cut or sold outQ4 24Q1 25: 29 bought or addedQ1 25: 38 cut or sold outQ2 25: 33 bought or addedQ2 25: 49 cut or sold outQ2 25Q3 25: 31 bought or addedQ3 25: 38 cut or sold outQ4 25: 45 bought or addedQ4 25: 30 cut or sold outQ4 25Q1 26: 59 bought or addedQ1 26: 35 cut or sold outQ2 26: 58 bought or addedQ2 26: 43 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 20245313
Q4 20245124
Q1 20252938
Q2 20253349
Q3 20253138
Q4 20254530
Q1 20265935
Q2 20265843

Calls vs puts

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

CallsPuts
$0$2m$4m$6mQ3 25 calls: $372.5kQ3 25 puts: $610.1kQ3 25P/C 1.64Q4 25 calls: $96.4kQ4 25 puts: $4.2mQ4 25P/C 43.96Q1 26 calls: $595Q1 26 puts: $2.6mQ1 26P/C 4344.00Q2 26 calls: $837.8kQ2 26 puts: $630.7kQ2 26P/C 0.75
Numbers
QuarterCallsPutsP/C
Q3 2025$372.5k$610.1k1.64
Q4 2025$96.4k$4.2m43.96
Q1 2026$595$2.6m4344.00
Q2 2026$837.8k$630.7k0.75

Biggest buyers

MPM BIOIMPACT LLC New +4,472,843+4.5m
BlackRock, Inc. Added +3,157,336+3.2m
Saturn V Capital Management LP Added +1,361,159+1.4m
ADAR1 Capital Management, LLC Added +1,128,892+1.1m
GEODE CAPITAL MANAGEMENT, LLC Added +1,056,518+1.1m
STATE STREET CORP Added +806,674+806.7k
Vestal Point Capital, LP Added +662,956+663.0k
QVT Financial LP Added +584,560+584.6k
GOLDMAN SACHS GROUP INC Added +421,031+421.0k
VANGUARD PORTFOLIO MANAGEMENT LLC New +407,532+407.5k

Biggest sellers

Pfizer Inc Reduced -2,300,072-2.3m
Cormorant Asset Management, LP Sold out -1,450,000-1.4m
MILLENNIUM MANAGEMENT LLC Reduced -1,370,424-1.4m
Affinity Asset Advisors, LLC Reduced -1,100,000-1.1m
Point72 Asset Management, L.P. Sold out -872,662-872.7k
MARSHALL WACE, LLP Sold out -852,340-852.3k
SILVERARC CAPITAL MANAGEMENT, LLC Sold out -560,651-560.7k
Qube Research & Technologies Ltd Sold out -450,311-450.3k
MORGAN STANLEY Reduced -366,997-367.0k
JANE STREET GROUP, LLC Sold out -278,890-278.9k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP New $516.8k87.6k shares
JANE STREET GROUP, LLC New $180.5k30.6k shares
SIMPLEX TRADING, LLC Added $140.4k23.8k shares

Biggest puts

SIMPLEX TRADING, LLC Reduced $349.3k59.2k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $281.4k47.7k 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
AI Biotechnology LLC 13D · may seek influence -1.7 pts · filed 2026-03-02 18.2% -1.7 pts 19.7m≈ $113.2m 2026-03-02
Athanor Capital 13D · may seek influence no change · filed 2026-01-27
Stated purposeThe securities reported herein were acquired by the Reporting Persons for investment purposes in the ordinary course of business. The Reporting Persons acquired the securities without the purpose or effect of changing or influencing the control of the Issuer and do not have any present plans or proposals that relate to or would result in any of the actions described in Items 4(a) through 4(j) of Schedule 13D. The Reporting Persons may, from time to time, review their investment in the Issuer and may engage in discussions with management or the board of directors of the Issuer regarding the Issuer's business, operations and prospects, subject to applicable law. The Reporting Persons reserve the right to determine in the future whether to change the purpose or purposes described above or wh… Full filing
15.7% no change 11.6m≈ $68.3m 2026-01-27
Venrock Healthcare Capital Partners III, L.P. 13G · passive investor no change · filed 2026-05-15 9.9% no change 9.8m≈ $57.9m 2026-05-15
SUVRETTA CAPITAL MANAGEMENT, LLC 13G · passive investor +1.3 pts · filed 2026-05-12 9.9% +1.3 pts 9.5m≈ $56.2m 2026-05-12

Fell to 5% or below in the last year: GREAT POINT PARTNERS LLC (4.4%, 2026-05-15), JPMORGAN CHASE & CO (4.7%, 2026-05-06), Deep Track Capital, LP (0.4%, 2025-11-14)

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q4 24: 0 buyingQ4 24: 1 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—1$2.7m—
Q1 20250—0——
Q2 20250—0——
Q3 20250—0——
Q4 20250—0——
Q1 20260—0——
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 MONTANOVA CAPITAL, LLC 1.17% of their portfolio New York, NY 9,443,0019.4m $55.7m $55.7m 1.17% Added +376.0k +376,000
2 Venrock Adviser, LLC 1.15% of their portfolio NEW YORK, NY 6,434,9906.4m $38.0m $38.0m 1.15% Unchanged
3 MPM BIOIMPACT LLC 1.61% of their portfolio BOSTON, MA 4,472,8434.5m $26.4m $26.4m 1.61% New
4 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 4,354,7154.4m $24.5m $24.5m 0.00% Reduced -104.1k -104,136
5 GREAT POINT PARTNERS LLC 5.86% of their portfolio Greenwich, CT 4,215,9304.2m $24.9m $24.9m 5.86% Unchanged
6 BRAIDWELL LP 0.87% of their portfolio STAMFORD, CT 3,980,2954.0m $23.5m $23.5m 0.87% Reduced -8.7k -8,694
7 Siren, L.L.C. 0.45% of their portfolio New York, NY 3,734,8663.7m $22.0m $22.0m 0.45% Unchanged
8 BlackRock, Inc. 0.00% of their portfolio New York, NY 3,614,6953.6m $21.3m $21.3m 0.00% Added +3.2m +3,157,336
9 Commodore Capital LP 1.14% of their portfolio NEW YORK, NY 3,250,0003.2m $19.2m $19.2m 1.14% Unchanged
10 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.02% of their portfolio Boston, MA 2,750,0002.8m $16.2m $16.2m 0.02% Unchanged
11 Saturn V Capital Management LP 1.78% of their portfolio AUSTIN, TX 2,101,1192.1m $12.4m $12.4m 1.78% Added +1.4m +1,361,159
12 QVT Financial LP 0.72% of their portfolio New York, NY 1,895,1531.9m $11.2m $11.2m 0.72% Added +584.6k +584,560
13 ADAR1 Capital Management, LLC 0.49% of their portfolio AUSTIN, TX 1,759,2951.8m $10.4m $10.4m 0.49% Added +1.1m +1,128,892
14 ARMISTICE CAPITAL, LLC 0.27% of their portfolio NEW YORK, NY 1,636,0001.6m $9.7m $9.7m 0.27% Added +129.0k +129,000
15 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 1,584,2091.6m $9.3m $9.3m 0.00% Added +1.1m +1,056,518
16 Affinity Asset Advisors, LLC 0.42% of their portfolio NEW YORK, NY 1,464,3031.5m $8.6m $8.6m 0.42% Reduced -1.1m -1,100,000
17 STEMPOINT CAPITAL LP 1.40% of their portfolio NEW YORK, NY 1,368,2151.4m $8.1m $8.1m 1.40% Reduced -138.8k -138,825
18 Ikarian Capital, LLC 1.18% of their portfolio DALLAS, TX 1,218,4921.2m $7.2m $7.2m 1.18% Added +25.0k +25,000
19 EcoR1 Capital, LLC 0.35% of their portfolio San Francisco, CA 1,179,7151.2m $7.0m $7.0m 0.35% Unchanged
20 Vestal Point Capital, LP 0.16% of their portfolio NEW YORK, NY 1,173,9561.2m $6.9m $6.9m 0.16% Added +663.0k +662,956
21 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 1,001,6371.0m $5.9m $5.9m 0.00% Added +806.7k +806,674
22 Boxer Capital Management, LLC 0.40% of their portfolio San Diego, CA 900,000900.0k $5.3m $5.3m 0.40% Unchanged
23 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 747,352747.4k $4.4m $4.4m 0.00% Added +260.5k +260,502
24 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 573,946573.9k $3.4m $3.4m 0.00% Added +421.0k +421,031
25 Pfizer Inc 1.69% of their portfolio New York, NY 538,841538.8k $2.9m $2.9m 1.69% Reduced -2.3m -2,300,072
26 FMR LLC 0.00% of their portfolio BOSTON, MA 528,284528.3k $3.1m $3.1m 0.00% Reduced -1.1k -1,062
27 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 505,953506.0k $3.0m $3.0m 0.00% Reduced -367.0k -366,997
28 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 500,086500.1k $3.0m $3.0m 0.00% Added +396.0k +395,956
29 Foresite Capital Management VI LLC 0.41% of their portfolio WEST HOLLYWOOD, CA 450,000450.0k $2.7m $2.7m 0.41% Unchanged
30 VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 407,532407.5k $2.4m $2.4m 0.00% New
31 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 406,450406.4k $2.4m $2.4m 0.00% Added +174.6k +174,588
32 BOOTHBAY FUND MANAGEMENT, LLC 0.04% of their portfolio NEW YORK, NY 379,177379.2k $2.2m $2.2m 0.04% Added +4.7k +4,671
33 KVP Capital Advisors, LP 1.62% of their portfolio SAN FRANCISCO, CA 373,128373.1k $2.2m $2.2m 1.62% Unchanged
34 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 350,902350.9k $2.1m $2.1m 0.00% Added +32.7k +32,716
35 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 321,702321.7k $1.9m $1.9m 0.00% Added +8.4k +8,402
36 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 300,719300.7k $1.8m $1.8m 0.00% Added +282.8k +282,821
37 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 282,207282.2k $1.7m $1.7m 0.00% Unchanged
38 UBS Group AG 0.00% of their portfolio ZURICH, V8 265,314265.3k $1.6m $1.6m 0.00% Added +24.3k +24,287
39 Jump Financial, LLC 0.01% of their portfolio Chicago, IL 231,600231.6k $1.4m $1.4m 0.01% Added +203.5k +203,537
40 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 174,395174.4k $1.0m $1.0m 0.00% Added +143.3k +143,299
41 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 137,639137.6k $812.1k $812.1k 0.00% Reduced -1.4m -1,370,424
42 XTX Topco Ltd 0.01% of their portfolio LONDON, X0 136,224136.2k $803.7k $803.7k 0.01% Added +16.5k +16,512
43 Alberta Investment Management Corp 0.00% of their portfolio EDMONTON, A0 133,200133.2k $785.9k $785.9k 0.00% Unchanged
44 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 126,204126.2k $744.6k $744.6k 0.00% New
45 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 124,365124.4k $733.8k $733.8k 0.00% New
46 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 105,746105.7k $623.9k $623.9k 0.00% Reduced -64.1k -64,087
47 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 97,03397.0k $572.5k $572.5k 0.00% Reduced -39.5k -39,490
48 ALPS ADVISORS INC 0.00% of their portfolio Denver, CO 96,41496.4k $568.8k $568.8k 0.00% Added +26.2k +26,222
49 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio HOUSTON, TX 85,34885.3k $503.6k $503.6k 0.01% Unchanged
50 Verdad Advisers, LP 0.38% of their portfolio BOSTON, MA 66,91966.9k $394.8k $394.8k 0.38% Reduced -30.2k -30,183
51 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 65,88865.9k $388.7k $388.7k 0.00% New
52 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 59,43759.4k $350.7k $350.7k 0.00% Added +52.1k +52,102
53 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 58,64858.6k $346.0k $346.0k 0.00% New
54 RBF Capital, LLC 0.01% of their portfolio RENO, NV 58,19358.2k $343.3k $343.3k 0.01% Unchanged
55 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 55,12955.1k $325.3k $325.3k 0.00% Added +12.0k +11,994
56 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 53,77653.8k $317.3k $317.3k 0.00% New
57 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 48,38548.4k $286.0k $286.0k 0.00% New
58 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 40,46140.5k $238.7k $238.7k 0.00% Added +6.7k +6,728
59 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 38,80038.8k $228.9k $228.9k 0.00% Reduced -77.9k -77,886
60 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 36,74936.7k $216.8k $216.8k 0.00% New
61 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 32,02932.0k $189.0k $189.0k 0.00% New
62 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 31,74031.7k $188.9k $188.9k 0.00% New
63 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 28,82028.8k $170.0k $170.0k 0.00% Added +1.9k +1,928
64 EntryPoint Capital, LLC 0.04% of their portfolio NEW YORK, NY 28,80628.8k $170.0k $170.0k 0.04% New
65 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 27,76327.8k $163.8k $163.8k 0.00% Added +18.4k +18,354
66 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 27,16427.2k $160.3k $160.3k 0.00% Reduced -17.8k -17,775
67 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 27,03027.0k $159.5k $159.5k 0.00% New
68 Forefront Analytics, LLC 0.17% of their portfolio WEST CONSHOHOCKEN, PA 26,96827.0k $159.1k $159.1k 0.17% Added +12.1k +12,067
69 Mariner, LLC 0.00% of their portfolio Overland Park, KS 23,10223.1k $136.3k $136.3k 0.00% Reduced -1.6k -1,632
70 INSIGNEO ADVISORY SERVICES, LLC 0.00% of their portfolio MIAMI, FL 20,65020.6k $121.8k $121.8k 0.00% Reduced -5.0k -5,000
71 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 17,38717.4k $102.6k $102.6k 0.00% New
72 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 17,04217.0k $100.5k $100.5k 0.00% New
73 LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio LOS ANGELES, CA 16,91616.9k $99.8k $99.8k 0.00% New
74 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 16,82116.8k $99.2k $99.2k 0.00% Unchanged
75 China Universal Asset Management Co., Ltd. 0.01% of their portfolio SHANGHAI, F4 16,00016.0k $94.4k $94.4k 0.01% Reduced -5.6k -5,600
76 Abel Hall, LLC 0.01% of their portfolio BATON ROUGE, LA 13,22913.2k $78.1k $78.1k 0.01% Added +40 +40
77 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 13,20013.2k $77.9k $77.9k 0.00% New
78 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 11,61611.6k $68.5k $68.5k 0.00% New
79 State of Wyoming 0.01% of their portfolio CHEYENNE, WY 9,8789.9k $58.3k $58.3k 0.01% Added +9.8k +9,823
80 Allworth Financial LP 0.00% of their portfolio FOLSOM, CA 5,7885.8k $34.1k $34.1k 0.00% Reduced -7.5k -7,528
81 Legal & General Group Plc 0.00% of their portfolio London, X0 5,7265.7k $33.8k $33.8k 0.00% New
82 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 5,3505.3k $31.6k $31.6k 0.00% New
83 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 4,7144.7k $27.8k $27.8k 0.00% New
84 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 3,3833.4k $20.0k $20.0k 0.00% New
85 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 2,8192.8k $17.0k $17.0k 0.00% New
86 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 2,6402.6k $15.6k $15.6k 0.00% Reduced -15.9k -15,851
87 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 1,0001.0k $5.9k $5.9k 0.00% Unchanged
88 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 812812 $4.8k $4.8k 0.00% New
89 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 702702 $4.1k $4.1k 0.00% Unchanged
90 Quarry LP 0.00% of their portfolio NEW YORK, NY 323323 $1.9k $1.9k 0.00% New
91 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 318318 $1.9k $1.9k 0.00% Unchanged
92 Sterling Capital Management LLC 0.00% of their portfolio CHARLOTTE, NC 207207 $1.2k $1.2k 0.00% New
93 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 7777 $454 $454 0.00% Reduced -29 -29
94 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 5050 $295 $295 0.00% Added +49 +49
95 Arax Advisory Partners 0.00% of their portfolio NEW YORK, NY 2424 $142 $142 0.00% Unchanged