Mizuho Securities USA’s GP-Act III Acquisition Corp GPAT Stock Holding History

Mizuho Securities USA’s Portfolio GPAT Stock Details GPAT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$6.03M	Buy	558,486 +498,388	+829%	+$5.41M	0.1%	187
2026 Q1	$649K	Sell	60,098 -259,811	-81%	-$2.8M	0.02%	614
2025 Q4	$3.38M	Buy	319,909 +119,909	+60%	+$1.28M	0.06%	291
2025 Q3	$2.1M	Sell	200,000 -107,200	-35%	-$1.13M	0.04%	403
2025 Q2	$3.21M	Buy	307,200 +277,200	+924%	+$2.9M	0.07%	280
2025 Q1	$303K	Buy	+30,000	New	+$307K	0.01%	613

Other funds holding GPAT

AIMCA

Alberta Investment Management Corp (AIMCo) Edmonton, Alberta, Canada $17.9B AUM 27.57% 1-Year Est. Return

Deutsche Bank Frankfurt Am Main Ge, Germany $344B AUM 42.99% 1-Year Est. Return

LIM

Longfellow Investment Management Boston, Massachusetts $489M AUM 9.58% 1-Year Est. Return

Mizuho Securities USA's GPAT Position: Q2 2026 in Review

Mizuho Securities USA increased its GP-Act III Acquisition Corp (GPAT) stake by 829% in Q2 2026, buying an estimated $5.41M and bringing the position to 558,486 shares worth $6.03M. The position accounts for 0.1% of the portfolio, ranked #187.

Mizuho Securities USA first reported a position in GPAT in Q1 2025 and has held it in 6 quarters since. 4 funds tracked by Wall St. Rank hold GPAT as of Q2 2026.

Mizuho Securities USA held 558,486 shares of GP-Act III Acquisition Corp worth $6.03M as of Q2 2026.
Mizuho Securities USA bought 498,388 GP-Act III Acquisition Corp shares in Q2 2026, an estimated $5.41M.
GP-Act III Acquisition Corp made up 0.1% of Mizuho Securities USA's portfolio in Q2 2026, its #187 holding.
Mizuho Securities USA first reported a position in GP-Act III Acquisition Corp in Q1 2025 and has held it in 6 quarters since.
4 funds tracked by Wall St. Rank held GP-Act III Acquisition Corp as of Q2 2026.

Based on Mizuho Securities USA's 13F filing for Q2 2026, filed 24 Jul 2026.