SPOK

Spok Holdings, Inc

Company with tickers: SPOK

CIK

1289945

CUSIP

84863T106

Shares Outstanding

20,887,010

13F Activity (30d)

94 filings 89 filers

Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.

1M 3M 6M 1Y 5Y All

Off-Exchange Volume History

Week Start	ATS Volume	Non-ATS OTC Volume	Total Off-Exchange	% of FINRA Weekly Volume
2026-05-04	108,039	244,919	352,958	47.1%
2026-04-27	136,006	269,803	405,809	50.9%
2026-04-20	58,448	136,573	195,021	36.6%
2026-04-13	78,476	194,190	272,666	44.8%
2026-04-06	77,432	229,456	306,888	37.5%
2026-03-30	69,793	234,045	303,838	44.0%
2026-03-23	108,242	208,018	316,260	41.0%
2026-03-16	102,976	251,023	353,999	39.8%
2026-03-09	148,193	263,230	411,423	46.3%
2026-03-02	168,679	219,798	388,477	40.3%
2026-02-23	263,105	461,459	724,564	41.4%
2026-02-16	94,857	237,351	332,208	41.9%
2026-02-09	107,195	167,578	274,773	41.8%
2026-02-02	106,550	253,569	360,119	42.7%
2026-01-26	121,679	130,415	252,094	39.7%
2026-01-19	112,735	265,904	378,639	44.8%
2026-01-12	96,460	223,554	320,014	43.0%
2026-01-05	137,491	225,771	363,262	44.5%
2025-12-29	139,923	253,273	393,196	54.5%
2025-12-22	85,385	112,041	197,426	40.5%
2025-12-15	119,422	365,941	485,363	46.5%

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