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Equibles

ZURA

Zura Bio Ltd
$5.17 +0.17 (+3.30%) At close · Jul 2
Market Cap
$491.14M
Shares
94,997,710

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 93
Total Value: $393,145,996
Total Shares: 66,074,966

Institutional Ownership Trend

13 quarters

Holder Concentration

Across 93 13F filers · Δ vs Dec 31, 2025
Top Holder
13.7%
Jun 2023 → Mar 2026 · range 11.0% – 25.7%
+1.5 pts
Top 5
42.6%
Jun 2023 → Mar 2026 · range 40.5% – 80.4%
−6.6 pts
Top 10
65.5%
Jun 2023 → Mar 2026 · range 65.5% – 92.5%
−7.0 pts
HHI
556
Jun 2023 → Mar 2026 · range 556 – 1,661
Broadly held−101

Quarterly Activity

vs Dec 31, 2025
New
31
Increased
30
Decreased
25
Sold Out
12
Unchanged
7
Holder count: +19
Institutional value: +64.9%
Shares held: +45.3%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mid SUVRETTA CAPITAL MANAGEMENT, LLC +3,500,000 9,067,001
Mid Siren, L.L.C. +2,434,866 3,734,866
Mid Venrock Adviser, LLC +1,089,875 6,434,990
Small Boxer Capital Management, LLC +850,000 900,000
Mid BRAIDWELL LP +808,600 3,988,989

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega MORGAN STANLEY −636,461 872,950
Mega JANE STREET GROUP, LLC −373,764 298,790
Mega CITADEL ADVISORS LLC −358,359 32,098
Mega UBS Group AG −229,513 241,027
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP −159,611 312,786

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mid Commodore Capital LP 3,250,000 $19,337,500
Mid Cormorant Asset Management, LP 1,450,000 $8,627,500
Mid QVT Financial LP 1,310,593 $7,798,028
Mid EcoR1 Capital, LLC 1,179,715 $7,019,304
Small STEMPOINT CAPITAL LP 753,520 $4,483,444

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 568,118 $2,976,937
Large Caption Management, LLC 473,936 $2,483,424
Small Seven Fleet Capital Management LP 166,500 $872,460
Large TWO SIGMA ADVISERS, LP 80,400 $421,296
Micro Dauntless Investment Group, LLC 61,010 $319,692
Filter: New 31 Increased 30 Reduced 25 Sold out 12 Unchanged 7
Showing 96 of 96
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mid SUVRETTA CAPITAL MANAGEMENT, LLC $53,948,655 13.72% 9,067,001
Mid Venrock Adviser, LLC $38,288,190 9.74% 6,434,990
Mega JPMORGAN CHASE & CO $26,530,162 6.75% 4,458,851
Small GREAT POINT PARTNERS LLC $25,084,783 6.38% 4,215,930
Mid BRAIDWELL LP $23,734,484 6.04% 3,988,989
Mid Siren, L.L.C. $22,222,452 5.65% 3,734,866
Mid Commodore Capital LP $19,337,500 4.92% 3,250,000
Small Pfizer Inc $16,891,532 4.30% 2,838,913
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $16,362,500 4.16% 2,750,000
Mid Affinity Asset Advisors, LLC $15,257,602 3.88% 2,564,303
Mega MILLENNIUM MANAGEMENT LLC $8,972,974 2.28% 1,508,063
Mid ARMISTICE CAPITAL, LLC $8,966,650 2.28% 1,507,000
Mid Cormorant Asset Management, LP $8,627,500 2.19% 1,450,000
Mid QVT Financial LP $7,798,028 1.98% 1,310,593
Mid Ikarian Capital, LLC $7,101,277 1.81% 1,193,492
Mid EcoR1 Capital, LLC $7,019,304 1.79% 1,179,715
Small Boxer Capital Management, LLC $5,355,000 1.36% 900,000
Mega MORGAN STANLEY $5,194,050 1.32% 872,950
Large Point72 Asset Management, L.P. $5,192,338 1.32% 872,662
Large MARSHALL WACE, LLP $5,071,422 1.29% 852,340
Small STEMPOINT CAPITAL LP $4,483,444 1.14% 753,520
Small Saturn V Capital Management LP $4,402,762 1.12% 739,960
Mid ADAR1 Capital Management, LLC $3,750,897 0.95% 630,403
Small SILVERARC CAPITAL MANAGEMENT, LLC $3,335,873 0.85% 560,651
Mega FMR LLC $3,149,608 0.80% 529,346
Mega GEODE CAPITAL MANAGEMENT, LLC $3,139,760 0.80% 527,691
Mid Vestal Point Capital, LP $3,040,450 0.77% 511,000
Mega VANGUARD CAPITAL MANAGEMENT LLC $2,896,757 0.74% 486,850
Mega BlackRock, Inc. $2,721,285 0.69% 457,359
Large Qube Research & Technologies Ltd $2,679,350 0.68% 450,311
Small Foresite Capital Management VI LLC $2,677,500 0.68% 450,000
Mid BOOTHBAY FUND MANAGEMENT, LLC $2,228,310 0.57% 374,506
Small KVP Capital Advisors, LP $2,220,111 0.56% 373,128
Mega TWO SIGMA INVESTMENTS, LP $1,893,206 0.48% 318,186
Large RENAISSANCE TECHNOLOGIES LLC $1,864,135 0.47% 313,300
Mega JANE STREET GROUP, LLC $1,659,395 0.42% 278,890
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,576,155 0.40% 264,900
Mega UBS Group AG $1,434,110 0.36% 241,027
Mega VANGUARD FIDUCIARY TRUST CO Bank $1,379,578 0.35% 231,862
Mega STATE STREET CORP $1,160,029 0.30% 194,963
Mega BARCLAYS PLC $1,010,505 0.26% 169,833
Mega GOLDMAN SACHS GROUP INC $909,844 0.23% 152,915
Mega BANK OF AMERICA CORP /DE/ Bank $812,311 0.21% 136,523
Mid Alberta Investment Management Corp $792,540 0.20% 133,200
Mid XTX Topco Ltd $712,286 0.18% 119,712
Mega WELLINGTON MANAGEMENT GROUP LLP $694,280 0.18% 116,686
Mid 683 Capital Management, LLC $654,500 0.17% 110,000
Mega NORTHERN TRUST CORP Bank $619,572 0.16% 104,130
Micro Verdad Advisers, LP $577,756 0.15% 97,102
Large Hudson Bay Capital Management LP $567,362 0.14% 95,355
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $507,820 0.13% 85,348
Mid GROUP ONE TRADING LLC $504,946 0.13% 84,865
Large HRT FINANCIAL LP $461,154 0.12% 77,505
Mid Burkehill Global Management, LP $446,250 0.11% 75,000
Mid Brevan Howard Capital Management LP $428,625 0.11% 72,038
Large ALPS ADVISORS INC $417,642 0.11% 70,192
Mid RBF Capital, LLC $346,248 0.09% 58,193
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $284,921 0.07% 47,886
Small FOX RUN MANAGEMENT, L.L.C. $274,068 0.07% 46,062
Large Squarepoint Ops LLC $267,387 0.07% 44,939
Mega DIMENSIONAL FUND ADVISORS LP $256,652 0.07% 43,135
Mega AMERICAN CENTURY COMPANIES INC $200,711 0.05% 33,733
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $185,021 0.05% 31,096
Large OMERS ADMINISTRATION Corp $177,310 0.05% 29,800
Mid Jump Financial, LLC $166,974 0.04% 28,063
Small Brendel Financial Advisors LLC $166,909 0.04% 28,052
Mega RAYMOND JAMES FINANCIAL INC $160,006 0.04% 26,892
Small INSIGNEO ADVISORY SERVICES, LLC $152,617 0.04% 25,650
Mid Ghisallo Capital Management LLC $148,750 0.04% 25,000
Large Mariner, LLC $147,167 0.04% 24,734
Mid China Universal Asset Management Co., Ltd. $128,520 0.03% 21,600
Mega JANE STREET GROUP, LLC $118,405 0.03% 19,900
Mid SIMPLEX TRADING, LLC $110,021 0.03% 18,491
Mega CITADEL ADVISORS LLC $106,492 0.03% 17,898
Mega Vanguard Global Advisers, LLC $100,084 0.03% 16,821
Large Schonfeld Strategic Advisors LLC $96,068 0.02% 16,146
Small Diametric Capital, LP $93,301 0.02% 15,681
Small Catalyst Funds Management Pty Ltd $91,035 0.02% 15,300
Micro Forefront Analytics, LLC $88,660 0.02% 14,901
Mid MANGROVE PARTNERS IM, LLC $88,006 0.02% 14,791
Mega CITADEL ADVISORS LLC $84,490 0.02% 14,200
Mid Allworth Financial LP $79,230 0.02% 13,316
Small Abel Hall, LLC $78,474 0.02% 13,189
Mega CITIGROUP INC $55,983 0.01% 9,409
Large Rockefeller Capital Management L.P. $44,625 0.01% 7,500
Mega BNP PARIBAS ARBITRAGE, SA $43,643 0.01% 7,335
Mid MAI Capital Management $23,800 0.01% 4,000
Large Steward Partners Investment Advisory, LLC $5,950 0.00% 1,000
Large NISA INVESTMENT ADVISORS, LLC $4,176 0.00% 702
Large US BANCORP \DE\ Bank $1,892 0.00% 318
Large CWM, LLC $690 0.00% 116
Mid SBI Securities Co., Ltd. Broker-Dealer $630 0.00% 106
Small State of Wyoming $327 0.00% 55
Mid Arax Advisory Partners $142 0.00% 24
Mid Optiver Holding B.V. $95 0.00% 16
Small Caitong International Asset Management Co., Ltd $5 0.00% 1
Key facts CIK 1855644 CUSIP G9TY5A101 Visit website Investor relations

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