Water Island Capital’s Aura Biosciences AURA Stock Holding History

Water Island Capital’s Portfolio AURA Stock Details AURA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-10,372	Closed	-$64.1K	–	93
2025 Q3	$64.1K	Buy	+10,372	New	+$67.8K	0.01%	83
2023 Q4	–	Sell	-22,650	Closed	-$203K	–	60
2023 Q3	$203K	Buy	22,650 +2,900	+15%	+$31.2K	0.02%	73
2023 Q2	$244K	Sell	19,750 -3,916	-17%	-$41.9K	0.02%	67
2023 Q1	$220K	Buy	23,666 +166	+0.7%	+$1.72K	0.02%	69
2022 Q4	$247K	Buy	23,500 +12,800	+120%	+$163K	0.02%	75
2022 Q3	$194K	Sell	10,700 -3,841	-26%	-$58.1K	0.01%	81
2022 Q2	$206K	Buy	+14,541	New	+$241K	0.01%	77

Other funds holding AURA

MCMC

Matrix Capital Management Company Portsmouth, New Hampshire $46.3M AUM 114.38% 1-Year Est. Return

FLSM

Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return

Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return

LFCM

Long Focus Capital Management San Juan, Puerto Rico $3.8B AUM 7.31% 1-Year Est. Return

SCM

Suvretta Capital Management New York $3.92B AUM 86.67% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

MVM

Medicxi Ventures Management St. Helier, Jersey $982M AUM 210.17% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return

NCM

Nantahala Capital Management New Canaan, Connecticut $2.72B AUM 121.58% 1-Year Est. Return

Water Island Capital's AURA Position: Q4 2025 in Review

Water Island Capital sold out of Aura Biosciences (AURA) in Q4 2025, closing a stake of 10,372 shares — an estimated $64.1K sold.

Water Island Capital first reported a position in AURA in Q2 2022 and held it in 7 quarters. The position peaked at $247K in Q4 2022. 117 funds tracked by Wall St. Rank hold AURA as of Q4 2025.

Water Island Capital reported no remaining Aura Biosciences position as of Q4 2025 after selling out during the quarter.
Water Island Capital sold 10,372 Aura Biosciences shares in Q4 2025, an estimated $64.1K.
Water Island Capital first reported a position in Aura Biosciences in Q2 2022 and held it in 7 quarters.
Water Island Capital's Aura Biosciences position peaked at $247K in Q4 2022.
117 funds tracked by Wall St. Rank held Aura Biosciences as of Q4 2025.

Based on Water Island Capital's 13F filing for Q4 2025, filed 17 Feb 2026.