Campbell & Co Investment Adviser’s Spok Holdings SPOK Stock Holding History

Campbell & Co Investment Adviser’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 Q2	$492K	Sell	48,083 -2,786	-5%	-$30.3K	0.03%	775
2026 Q1	$554K	Buy	50,869 +1,831	+4%	+$23.3K	0.03%	710
2025 Q4	$647K	Buy	49,038 +19,504	+66%	+$276K	0.03%	733
2025 Q3	$509K	Buy	+29,534	New	+$526K	0.04%	722
2025 Q1	–	Sell	-21,378	Closed	-$343K	–	1325
2024 Q4	$343K	Sell	21,378 -26,085	-55%	-$413K	0.03%	803
2024 Q3	$715K	Sell	47,463 -5,748	-11%	-$87.4K	0.05%	569
2024 Q2	$788K	Sell	53,211 -8,711	-14%	-$131K	0.07%	463
2024 Q1	$988K	Buy	61,922 +5,971	+11%	+$98.3K	0.09%	404
2023 Q4	$866K	Buy	55,951 +6,392	+13%	+$98.3K	0.08%	449
2023 Q3	$707K	Buy	+49,559	New	+$665K	0.08%	388
2020 Q1	–	Sell	-13,571	Closed	-$166K	–	457
2019 Q4	$166K	Sell	13,571 -9,944	-42%	-$117K	0.05%	606
2019 Q3	$281K	Buy	+23,515	New	+$304K	0.11%	416
2019 Q1	–	Sell	-21,960	Closed	-$322K	–	605
2018 Q4	$322K	Buy	21,960 +10,960	+100%	+$158K	0.32%	131
2018 Q3	$169K	Buy	+11,000	New	+$166K	0.11%	356

Other funds holding SPOK

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

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

HighTower Advisors Chicago, Illinois $104B AUM 28.3% 1-Year Est. Return

Qube Research & Technologies (QRT) London, United Kingdom $108B AUM 37.29% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Campbell & Co Investment Adviser's SPOK Position: Q2 2026 in Review

Campbell & Co Investment Adviser reduced its Spok Holdings (SPOK) stake by 5.5% in Q2 2026, selling an estimated $30.3K and leaving 48,083 shares worth $492K. The position accounts for 0.03% of the portfolio, ranked #775.

Campbell & Co Investment Adviser first reported a position in SPOK in Q3 2018 and has held it in 14 quarters since. The position peaked at $988K in Q1 2024. 132 funds tracked by Wall St. Rank hold SPOK as of Q2 2026.

Campbell & Co Investment Adviser held 48,083 shares of Spok Holdings worth $492K as of Q2 2026.
Campbell & Co Investment Adviser sold 2,786 Spok Holdings shares in Q2 2026, an estimated $30.3K.
Spok Holdings made up 0.03% of Campbell & Co Investment Adviser's portfolio in Q2 2026, its #775 holding.
Campbell & Co Investment Adviser first reported a position in Spok Holdings in Q3 2018 and has held it in 14 quarters since.
Campbell & Co Investment Adviser's Spok Holdings position peaked at $988K in Q1 2024.
132 funds tracked by Wall St. Rank held Spok Holdings as of Q2 2026.

Based on Campbell & Co Investment Adviser's 13F filing for Q2 2026, filed 3 Aug 2026.