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Tower Research Capital LLC (TRC)

Position in SPOK — Spok Holdings, Inc

CIK 1533421 NEW YORK, NY

Position in SPOK

as of Jun 30, 2026 · filed Aug 11, 2026
Position Value
$24,524
-$20,907 QoQ
Shares Held
2,395
-42.5% QoQ
Ownership
0.011%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#94
of 133 holders
Holding Since
Jun 2020
24 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in SPOK Over Time

Shares Held

Position Value (USD)

Position in Health Information Services

Healthcare · as of Jun 30, 2026

Tower Research Capital LLC (TRC) holds $4,956,734 across 39 Health Information Services names. SPOK ranks #25 (0.5% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SPOK

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24 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $24,524 2,395
2026-03-31 $45,431 4,168
2025-12-31 $35,639 2,702
2025-09-30 $18,888 1,095
2025-06-30 $49,043 2,774
2025-03-31 $10,866 661
2024-12-31 $22,213 1,384
2024-09-30 $139,741 9,279
2024-06-30 $54,544 3,683
2024-03-31 $10,638 667
2023-12-31 $76,052 4,913
2023-09-30 $12,985 910
2023-06-30 $3,561 268
2023-03-31 $67,202 6,634
2022-12-31 $30,556 3,731
2022-09-30 $24,195 3,167
2022-03-31 $124,160 15,559
2021-12-31 $141,190 15,133
2021-09-30 $20,511 2,007
2021-06-30 $76,584 7,961
2021-03-31 $51,924 4,950
2020-12-31 $40,579 3,646
2020-09-30 $182,943 19,237
2020-06-30 $42,382 4,533