Castle Hook Partners’s Seagate STX Stock Holding History

Castle Hook Partners’s Portfolio STX Stock Details STX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$527M	Sell	546,287 -15,360	-3%	-$11.7M	2.42%	6
2026 Q1	$220M	Sell	561,647 -240,767	-30%	-$91.9M	0.94%	13
2025 Q4	$221M	Sell	802,414 -133,337	-14%	-$34.6M	0.92%	18
2025 Q3	$221M	Buy	935,751 +203,948	+28%	+$34.8M	1.12%	16
2025 Q2	$106M	Buy	+731,803	New	+$75.8M	0.6%	30

Other funds holding STX

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

WCM Investment Management Laguna Beach, California $55.2B AUM 57.07% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 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

Castle Hook Partners's STX Position: Q2 2026 in Review

Castle Hook Partners reduced its Seagate (STX) stake by 2.7% in Q2 2026, selling an estimated $11.7M and leaving 546,287 shares worth $527M. The position accounts for 2.42% of the portfolio, ranked #6.

Castle Hook Partners first reported a position in STX in Q2 2025 and has held it in 5 quarters since. 1,957 funds tracked by Wall St. Rank hold STX as of Q2 2026.

Castle Hook Partners held 546,287 shares of Seagate worth $527M as of Q2 2026.
Castle Hook Partners sold 15,360 Seagate shares in Q2 2026, an estimated $11.7M.
Seagate made up 2.42% of Castle Hook Partners's portfolio in Q2 2026, its #6 holding.
Castle Hook Partners first reported a position in Seagate in Q2 2025 and has held it in 5 quarters since.
1,957 funds tracked by Wall St. Rank held Seagate as of Q2 2026.

Based on Castle Hook Partners's 13F filing for Q2 2026, filed 14 Aug 2026.