Magnetar Financial’s Cactus WHD Stock Holding History

Magnetar Financial’s Portfolio WHD Stock Details WHD Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$756K	Buy	15,959 +8,680	+119%	+$455K	0.01%	533
2025 Q4	$333K	Buy	+7,279	New	+$304K	﹤0.01%	654
2025 Q3	–	Sell	-26,506	Closed	-$1.16M	–	1222
2025 Q2	$1.16M	Buy	26,506 +13,962	+111%	+$583K	0.01%	410
2025 Q1	$575K	Buy	12,544 +7,655	+157%	+$424K	0.01%	433
2024 Q4	$285K	Buy	+4,889	New	+$307K	0.01%	483
2019 Q2	–	Sell	-397,627	Closed	-$14.2M	–	555
2019 Q1	$14.2M	Buy	+397,627	New	+$13.5M	0.36%	40

Other funds holding WHD

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Magnetar Financial's WHD Position: Q1 2026 in Review

Magnetar Financial increased its Cactus (WHD) stake by 119% in Q1 2026, buying an estimated $455K and bringing the position to 15,959 shares worth $756K. The position accounts for 0.01% of the portfolio, ranked #533.

Magnetar Financial first reported a position in WHD in Q1 2019 and has held it in 6 quarters since. The position peaked at $14.2M in Q1 2019. 323 funds tracked by Wall St. Rank hold WHD as of Q1 2026.

Magnetar Financial held 15,959 shares of Cactus worth $756K as of Q1 2026.
Magnetar Financial bought 8,680 Cactus shares in Q1 2026, an estimated $455K.
Cactus made up 0.01% of Magnetar Financial's portfolio in Q1 2026, its #533 holding.
Magnetar Financial first reported a position in Cactus in Q1 2019 and has held it in 6 quarters since.
Magnetar Financial's Cactus position peaked at $14.2M in Q1 2019.
323 funds tracked by Wall St. Rank held Cactus as of Q1 2026.

Based on Magnetar Financial's 13F filing for Q1 2026, filed 13 May 2026.