W.R. Berkley Corp’s Jackson Acquisition Co II JACS Stock Holding History

W.R. Berkley Corp’s Portfolio JACS Stock Details JACS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$9.87M	Buy	927,836 +497,474	+116%	+$5.27M	0.45%	43
2026 Q1	$4.56M	Buy	430,362 +84,097	+24%	+$883K	0.24%	82
2025 Q4	$3.61M	Hold	346,265	–	–	0.17%	97
2025 Q3	$3.59M	Hold	346,265	–	–	0.21%	93
2025 Q2	$3.57M	Buy	346,265 +99,390	+40%	+$1.01M	0.19%	103
2025 Q1	$2.48M	Buy	+246,875	New	+$2.48M	0.15%	94

Other funds holding JACS

Hudson Bay Capital Management Stamford, Connecticut $36.8B AUM 42.13% 1-Year Est. Return

GCL

Glazer Capital LLC New York $4.07B AUM 78.71% 1-Year Est. Return

WCMNY

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

AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return

Linden Advisors New York $19.3B AUM 1.47% 1-Year Est. Return

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

WAM

Wolverine Asset Management Chicago, Illinois $11.4B AUM 5.65% 1-Year Est. Return

PAMP

Polar Asset Management Partners Toronto, Ontario, Canada $6.07B AUM 34.81% 1-Year Est. Return

MSU

Mizuho Securities USA New York $6.2B AUM 35.46% 1-Year Est. Return

HCM

Highbridge Capital Management New York $4.11B AUM 26.03% 1-Year Est. Return

W.R. Berkley Corp's JACS Position: Q2 2026 in Review

W.R. Berkley Corp increased its Jackson Acquisition Co II (JACS) stake by 116% in Q2 2026, buying an estimated $5.27M and bringing the position to 927,836 shares worth $9.87M. The position accounts for 0.45% of the portfolio, ranked #43.

W.R. Berkley Corp first reported a position in JACS in Q1 2025 and has held it in 6 quarters since. 48 funds tracked by Wall St. Rank hold JACS as of Q2 2026.

W.R. Berkley Corp held 927,836 shares of Jackson Acquisition Co II worth $9.87M as of Q2 2026.
W.R. Berkley Corp bought 497,474 Jackson Acquisition Co II shares in Q2 2026, an estimated $5.27M.
Jackson Acquisition Co II made up 0.45% of W.R. Berkley Corp's portfolio in Q2 2026, its #43 holding.
W.R. Berkley Corp first reported a position in Jackson Acquisition Co II in Q1 2025 and has held it in 6 quarters since.
48 funds tracked by Wall St. Rank held Jackson Acquisition Co II as of Q2 2026.

Based on W.R. Berkley Corp's 13F filing for Q2 2026, filed 14 Aug 2026.