Jane Street’s Spok Holdings SPOK Stock Holding History

Jane Street’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	$943K	Buy	86,524 +72,760	+529%	+$926K	﹤0.01%	6637
2025 Q4	$182K	Sell	13,764 -26,336	-66%	-$373K	﹤0.01%	9807
2025 Q3	$692K	Buy	+40,100	New	+$714K	﹤0.01%	7123
2025 Q2	–	Sell	-28,394	Closed	-$467K	–	10807
2025 Q1	$467K	Buy	+28,394	New	+$462K	﹤0.01%	6995
2024 Q4	–	Sell	-13,306	Closed	-$200K	–	10518
2024 Q3	$200K	Sell	13,306 -4,246	-24%	-$64.5K	﹤0.01%	8645
2024 Q2	$260K	Buy	17,552 +988	+6%	+$14.9K	﹤0.01%	8013
2024 Q1	$264K	Buy	16,564 +1,687	+11%	+$27.8K	﹤0.01%	7751
2023 Q4	$230K	Buy	+14,877	New	+$229K	﹤0.01%	8015
2023 Q2	–	Sell	-109,059	Closed	-$1.1M	–	9520
2023 Q1	$1.1M	Buy	+109,059	New	+$996K	﹤0.01%	4816
2021 Q3	–	Sell	-40,661	Closed	-$391K	–	10676
2021 Q2	$391K	Buy	+40,661	New	+$434K	﹤0.01%	7703
2017 Q3	–	Sell	-26,894	Closed	-$476K	–	5023
2017 Q2	$476K	Buy	26,894 +8,336	+45%	+$149K	﹤0.01%	3094
2017 Q1	$353K	Buy	+18,558	New	+$360K	﹤0.01%	3253
2014 Q2	–	Sell	-12,344	Closed	-$224K	–	3086
2014 Q1	$224K	Buy	+12,344	New	+$183K	﹤0.01%	2260

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

Jane Street's SPOK Position: Q1 2026 in Review

Jane Street increased its Spok Holdings (SPOK) stake by 529% in Q1 2026, buying an estimated $926K and bringing the position to 86,524 shares worth $943K. The position accounts for ﹤0.01% of the portfolio, ranked #6637.

Jane Street first reported a position in SPOK in Q1 2014 and has held it in 13 quarters since. The position peaked at $1.1M in Q1 2023. 139 funds tracked by Wall St. Rank hold SPOK as of Q1 2026.

Jane Street held 86,524 shares of Spok Holdings worth $943K as of Q1 2026.
Jane Street bought 72,760 Spok Holdings shares in Q1 2026, an estimated $926K.
Spok Holdings made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #6637 holding.
Jane Street first reported a position in Spok Holdings in Q1 2014 and has held it in 13 quarters since.
Jane Street's Spok Holdings position peaked at $1.1M in Q1 2023.
139 funds tracked by Wall St. Rank held Spok Holdings as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.