Magnetar Financial’s Spok Holdings SPOK Stock Holding History

Magnetar Financial’s Portfolio SPOK Stock Details SPOK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$152K	Sell	13,904 -7,577	-35%	-$96.4K	﹤0.01%	941
2025 Q4	$283K	Buy	+21,481	New	+$304K	﹤0.01%	708
2025 Q3	–	Sell	-18,480	Closed	-$327K	–	1166
2025 Q2	$327K	Buy	+18,480	New	+$298K	﹤0.01%	676
2025 Q1	–	Sell	-40,329	Closed	-$647K	–	931
2024 Q4	$647K	Buy	+40,329	New	+$639K	0.01%	328
2024 Q3	–	Sell	-34,608	Closed	-$513K	–	681
2024 Q2	$513K	Buy	+34,608	New	+$522K	0.01%	328

Other funds holding SPOK

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

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

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

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

HighTower Advisors Chicago, Illinois $94.2B AUM 21.24% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

Magnetar Financial's SPOK Position: Q1 2026 in Review

Magnetar Financial reduced its Spok Holdings (SPOK) stake by 35% in Q1 2026, selling an estimated $96.4K and leaving 13,904 shares worth $152K. The position accounts for ﹤0.01% of the portfolio, ranked #941.

Magnetar Financial first reported a position in SPOK in Q2 2024 and has held it in 5 quarters since. The position peaked at $647K in Q4 2024. 139 funds tracked by Wall St. Rank hold SPOK as of Q1 2026.

Magnetar Financial held 13,904 shares of Spok Holdings worth $152K as of Q1 2026.
Magnetar Financial sold 7,577 Spok Holdings shares in Q1 2026, an estimated $96.4K.
Spok Holdings made up ﹤0.01% of Magnetar Financial's portfolio in Q1 2026, its #941 holding.
Magnetar Financial first reported a position in Spok Holdings in Q2 2024 and has held it in 5 quarters since.
Magnetar Financial's Spok Holdings position peaked at $647K in Q4 2024.
139 funds tracked by Wall St. Rank held Spok Holdings as of Q1 2026.

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