UBS O'Connor’s Arvinas ARVN Stock Holding History

UBS O'Connor’s Portfolio ARVN Stock Details ARVN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-40,000	Closed	-$15K	–	342
2024 Q4	$15K	Buy	40,000 +20,000	+100%	+$486K	﹤0.01%	387
2024 Q3	$66K	Buy	+20,000	New	+$522K	﹤0.01%	419
2023 Q4	–	Sell	-60,000	Closed	-$48K	–	519
2023 Q3	$48K	Buy	+60,000	New	+$1.47M	﹤0.01%	490

Other funds holding ARVN

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

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

LGM

Logos Global Management San Francisco, California $2.32B AUM 536.01% 1-Year Est. Return

Pfizer New York $170M AUM 191.09% 1-Year Est. Return

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

TCM

TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return

UBS O'Connor's ARVN Position: Q3 2025 in Review

UBS O'Connor sold out of Arvinas (ARVN) in Q3 2025, closing a stake of 50,000 shares — an estimated $368K sold.

UBS O'Connor first reported a position in ARVN in Q1 2023 and held it in 8 quarters. The position peaked at $3.75M in Q4 2023. 211 funds tracked by Wall St. Rank hold ARVN as of Q3 2025.

UBS O'Connor reported no remaining Arvinas position as of Q3 2025 after selling out during the quarter.
UBS O'Connor sold 50,000 Arvinas shares in Q3 2025, an estimated $368K.
UBS O'Connor first reported a position in Arvinas in Q1 2023 and held it in 8 quarters.
UBS O'Connor's Arvinas position peaked at $3.75M in Q4 2023.
211 funds tracked by Wall St. Rank held Arvinas as of Q3 2025.

Based on UBS O'Connor's 13F filing for Q3 2025, filed 14 Nov 2025.