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SIMPLEX TRADING, LLC

Position in SPOK — Spok Holdings, Inc

CIK 1488542 CHICAGO, IL

Position in SPOK

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$207
-$716 QoQ
Shares Held
19
-72.9% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2020
13 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

SIMPLEX TRADING, LLC holds $6,097,665 across 17 Health Information Services names.

# Ticker Company Shares Value (USD) Open

All Filings in SPOK

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13 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $207 19
2025-12-31 $923 70
2025-09-30 $8,418 488
2024-03-31 $29,970 1,879
2023-12-31 $47,817 3,089
2023-03-31 $46,385 4,579
2022-12-31 $100,818 12,310
2022-06-30 $43,173 6,853
2022-03-31 $47,329 5,931
2021-12-31 $76,580 8,208
2021-09-30 $4,098 401
2021-06-30 $3,857 401
2020-06-30 $4,824 516