Aaron Cowen’s Zura Bio ZURA Stock Holding History

Aaron Cowen’s Portfolio ZURA Stock Details ZURA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$55.7M	Buy	9,443,001 +376,000	+4%	+$1.79M	1.02%	28
2026 Q1	$53.9M	Buy	9,067,001 +3,500,000	+63%	+$21.1M	1.38%	28
2025 Q4	$29.2M	Buy	5,567,001 +94,110	+2%	+$372K	0.6%	47
2025 Q3	$23.7M	Buy	5,472,891 +611,952	+13%	+$1.1M	0.61%	50
2025 Q2	$5.1M	Hold	4,860,939	–	–	0.15%	62
2025 Q1	$6.27M	Hold	4,860,939	–	–	0.23%	61
2024 Q4	$12.2M	Hold	4,860,939	–	–	0.41%	53
2024 Q3	$19.7M	Hold	4,860,939	–	–	0.63%	48
2024 Q2	$17M	Buy	4,860,939 +2,010,939	+71%	+$8.2M	0.63%	42
2024 Q1	$7.32M	Hold	2,850,000	–	–	0.27%	57
2023 Q4	$13.3M	Hold	2,850,000	–	–	0.6%	43
2023 Q3	$18.8M	Hold	2,850,000	–	–	1.02%	31
2023 Q2	$23.4M	Buy	+2,850,000	New	+$22.9M	1.25%	29

Other funds holding ZURA

VR Adviser New York $3.3B AUM 525.74% 1-Year Est. Return

MPM BioImpact Boston, Massachusetts $1.64B AUM 245.64% 1-Year Est. Return

GPP

Great Point Partners Greenwich, Connecticut $529M AUM 337.4% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Braidwell Stamford, Connecticut $2.7B AUM 88.53% 1-Year Est. Return

Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Commodore Capital New York $1.68B AUM 375.52% 1-Year Est. Return

Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return

SVCM

Saturn V Capital Management Austin, Texas $697M AUM 628.57% 1-Year Est. Return

Aaron Cowen's ZURA Position: Q2 2026 in Review

Aaron Cowen increased its Zura Bio (ZURA) stake by 4.1% in Q2 2026, buying an estimated $1.79M and bringing the position to 9,443,001 shares worth $55.7M. The position accounts for 1.02% of the portfolio, ranked #28.

Aaron Cowen first reported a position in ZURA in Q2 2023 and has held it in 13 quarters since. 94 funds tracked by Wall St. Rank hold ZURA as of Q2 2026.

Aaron Cowen held 9,443,001 shares of Zura Bio worth $55.7M as of Q2 2026.
Aaron Cowen bought 376,000 Zura Bio shares in Q2 2026, an estimated $1.79M.
Zura Bio made up 1.02% of Aaron Cowen's portfolio in Q2 2026, its #28 holding.
Aaron Cowen first reported a position in Zura Bio in Q2 2023 and has held it in 13 quarters since.
94 funds tracked by Wall St. Rank held Zura Bio as of Q2 2026.

Based on Suvretta Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.