Optiver Holding’s ProAssurance PRA Stock Holding History

Optiver Holding’s Portfolio PRA Stock Details PRA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-26	Closed	-$628	–	2648
2025 Q4	$628	Sell	26 -196	-88%	-$4.71K	﹤0.01%	2270
2025 Q3	$5.33K	Buy	+222	New	+$5.28K	﹤0.01%	1696

Other funds holding PRA

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

Magnetar Financial Evanston, Illinois $11B AUM 3.37% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return

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

HSBC Holdings London, United Kingdom $192B AUM 27.2% 1-Year Est. Return

GCL

Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return

WCMNY

Westchester Capital Management (New York) Valhalla, New York $2.04B AUM 31.03% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Optiver Holding's PRA Position: Q1 2026 in Review

Optiver Holding sold out of ProAssurance (PRA) in Q1 2026, closing a stake of 26 shares — an estimated $628 sold.

Optiver Holding first reported a position in PRA in Q3 2025 and held it in 2 quarters. The position peaked at $5.33K in Q3 2025. 222 funds tracked by Wall St. Rank hold PRA as of Q1 2026.

Optiver Holding reported no remaining ProAssurance position as of Q1 2026 after selling out during the quarter.
Optiver Holding sold 26 ProAssurance shares in Q1 2026, an estimated $628.
Optiver Holding first reported a position in ProAssurance in Q3 2025 and held it in 2 quarters.
Optiver Holding's ProAssurance position peaked at $5.33K in Q3 2025.
222 funds tracked by Wall St. Rank held ProAssurance as of Q1 2026.

Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.