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%
2025-12-08	150,938	284,384	435,322	49.3%
2025-12-01	117,523	270,098	387,621	51.6%
2025-11-24	109,012	190,457	299,469	49.1%
2025-11-17	151,516	362,100	513,616	46.8%
2025-11-10	104,543	223,300	327,843	46.3%
2025-11-03	200,517	256,959	457,476	47.0%
2025-10-27	242,564	319,005	561,569	42.2%
2025-10-20	77,121	97,567	174,688	36.4%
2025-10-13	83,235	134,457	217,692	37.2%
2025-10-06	69,463	163,771	233,234	46.1%
2025-09-29	56,792	177,438	234,230	37.9%
2025-09-22	49,537	61,131	110,668	32.3%
2025-09-15	68,089	103,557	171,646	33.8%
2025-09-08	68,564	127,910	196,474	39.7%
2025-09-01	90,576	78,307	168,883	30.4%
2025-08-25	142,917	104,753	247,670	40.3%
2025-08-18	121,997	183,382	305,379	37.6%
2025-08-11	159,665	187,974	347,639	32.4%
2025-08-04	200,059	205,373	405,432	45.0%
2025-07-28	118,700	144,596	263,296	39.7%
2025-07-21	74,497	70,842	145,339	39.4%
2025-07-14	101,344	76,409	177,753	34.4%
2025-07-07	132,386	120,285	252,671	43.1%
2025-06-30	108,481	114,023	222,504	43.0%
2025-06-23	109,185	206,246	315,431	38.2%
2025-06-16	59,516	82,550	142,066	40.0%

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