WALLACE MICHAEL W

Chief Financial Officer at MC INDUSTRIAL GROUP, INC. · on record since Mar 25, 2008
Chief Operating Officer at Spok Holdings, Inc · on record since Jan 3, 2018

Insider trading activity of WALLACE MICHAEL W

Transactions on record: 134; since Mar 29, 2017

Open-market buys: 8; $175.5K

Open-market sells: 8; $2.2M

Companies traded: 1; last filing Aug 4, 2026

Figures computed from official regulatory filings — .

Companies where WALLACE MICHAEL W has traded

Spok Holdings, Inc134 tx · $8.9M · Aug 4, 2026

Track record of WALLACE MICHAEL W

Statistical track record

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Open-market buys: 8

Last buy: Mar 8, 2023

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Transaction history of WALLACE MICHAEL W

Co-insiders of WALLACE MICHAEL W

989320 ALBERTA LTDMC INDUSTRIAL GROUP, INC.
ABRAMS CAPITAL LLCSpok Holdings, Inc
Abrams David CSpok Holdings, Inc
Alleman BrianMC INDUSTRIAL GROUP, INC.
ALLEN CHARLES EMC INDUSTRIAL GROUP, INC.
ALLEN CHARLES E JRMC INDUSTRIAL GROUP, INC.
ALTENAU MARKMC INDUSTRIAL GROUP, INC.
Anast Con EvanMC INDUSTRIAL GROUP, INC.
Ash GarySpok Holdings, Inc
ASHLEY JONATHANMC INDUSTRIAL GROUP, INC.

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Spok Holdings, IncListing on record	Aug 4, 2026	AwardD (derivative)	13,761	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Aug 4, 2026	AwardD (derivative)	13,761	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Mar 4, 2026	Other	-17,897	12.14 USD	$217.3K		SEC
Spok Holdings, IncListing on record	Mar 4, 2026	Exercise	30,525	12.14 USD	$370.6K		SEC
Spok Holdings, IncListing on record	Mar 4, 2026	Award	9,157	12.14 USD	$111.2K	Unusual size	SEC
Spok Holdings, IncListing on record	Mar 4, 2026	ExerciseD (derivative)	-30,525	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Jan 7, 2026	Exercise	22,865	13.19 USD	$301.6K		SEC
Spok Holdings, IncListing on record	Jan 7, 2026	ExerciseD (derivative)	-6,230	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Jan 7, 2026	Other	-10,985	13.19 USD	$144.9K		SEC
Spok Holdings, IncListing on record	Jan 7, 2026	ExerciseD (derivative)	-6,460	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Jan 7, 2026	ExerciseD (derivative)	-10,175	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Jan 5, 2026	AwardD (derivative)	34,117	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Jan 5, 2026	AwardD (derivative)	34,116	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Aug 26, 2025	SellD (derivative)	0	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Aug 26, 2025	Sell	-10,806	17.87 USD	$193.1K		SEC
Spok Holdings, IncListing on record	Aug 5, 2025	SellD (derivative)	0	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Aug 5, 2025	Sell	-10,000	18.49 USD	$184.9K		SEC
Spok Holdings, IncListing on record	May 8, 2025	Sell	-6,000	16.53 USD	$99.2K		SEC
Spok Holdings, IncListing on record	May 8, 2025	SellD (derivative)	0	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Mar 7, 2025	Exercise	34,682	16.85 USD	$584.4K	Unusual size	SEC
Spok Holdings, IncListing on record	Mar 7, 2025	ExerciseD (derivative)	-34,682	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Mar 7, 2025	Award	10,404	16.85 USD	$175.3K	Unusual size	SEC
Spok Holdings, IncListing on record	Mar 7, 2025	Other	-20,334	16.85 USD	$342.6K	Unusual size	SEC
Spok Holdings, IncListing on record	Mar 5, 2025	SellD (derivative)	0	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Mar 5, 2025	Sell	-10,000	16.53 USD	$165.3K		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Spok Holdings, IncListing on record	Aug 4, 2026	AwardD (derivative)	13,761	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Aug 4, 2026	AwardD (derivative)	13,761	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Mar 4, 2026	Other	-17,897	12.14 USD	$217.3K		SEC
Spok Holdings, IncListing on record	Mar 4, 2026	Exercise	30,525	12.14 USD	$370.6K		SEC
Spok Holdings, IncListing on record	Mar 4, 2026	Award	9,157	12.14 USD	$111.2K	Unusual size	SEC
Spok Holdings, IncListing on record	Mar 4, 2026	ExerciseD (derivative)	-30,525	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Jan 7, 2026	Exercise	22,865	13.19 USD	$301.6K		SEC
Spok Holdings, IncListing on record	Jan 7, 2026	ExerciseD (derivative)	-6,230	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Jan 7, 2026	Other	-10,985	13.19 USD	$144.9K		SEC
Spok Holdings, IncListing on record	Jan 7, 2026	ExerciseD (derivative)	-6,460	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Jan 7, 2026	ExerciseD (derivative)	-10,175	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Jan 5, 2026	AwardD (derivative)	34,117	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Jan 5, 2026	AwardD (derivative)	34,116	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Aug 26, 2025	SellD (derivative)	0	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Aug 26, 2025	Sell	-10,806	17.87 USD	$193.1K		SEC
Spok Holdings, IncListing on record	Aug 5, 2025	SellD (derivative)	0	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Aug 5, 2025	Sell	-10,000	18.49 USD	$184.9K		SEC
Spok Holdings, IncListing on record	May 8, 2025	Sell	-6,000	16.53 USD	$99.2K		SEC
Spok Holdings, IncListing on record	May 8, 2025	SellD (derivative)	0	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Mar 7, 2025	Exercise	34,682	16.85 USD	$584.4K	Unusual size	SEC
Spok Holdings, IncListing on record	Mar 7, 2025	ExerciseD (derivative)	-34,682	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Mar 7, 2025	Award	10,404	16.85 USD	$175.3K	Unusual size	SEC
Spok Holdings, IncListing on record	Mar 7, 2025	Other	-20,334	16.85 USD	$342.6K	Unusual size	SEC
Spok Holdings, IncListing on record	Mar 5, 2025	SellD (derivative)	0	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Spok Holdings, IncListing on record	Mar 5, 2025	Sell	-10,000	16.53 USD	$165.3K		SEC