Water Island Capital’s Apellis Pharmaceuticals APLS Stock Holding History

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

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-120,500	Closed	-$4.85M	–	89
2026 Q1	$4.85M	Buy	+120,500	New	+$2.6M	0.54%	41

Other funds holding APLS

IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

Water Island Capital's APLS Position: Q2 2026 in Review

Water Island Capital sold out of Apellis Pharmaceuticals (APLS) in Q2 2026, closing a stake of 120,500 shares — an estimated $4.85M sold.

Water Island Capital first reported a position in APLS in Q1 2026 and held it in 1 quarter. The position peaked at $4.85M in Q1 2026. 1 fund tracked by Wall St. Rank holds APLS as of Q2 2026.

Water Island Capital reported no remaining Apellis Pharmaceuticals position as of Q2 2026 after selling out during the quarter.
Water Island Capital sold 120,500 Apellis Pharmaceuticals shares in Q2 2026, an estimated $4.85M.
Water Island Capital first reported a position in Apellis Pharmaceuticals in Q1 2026 and held it in 1 quarter.
Water Island Capital's Apellis Pharmaceuticals position peaked at $4.85M in Q1 2026.
1 fund tracked by Wall St. Rank held Apellis Pharmaceuticals as of Q2 2026.

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