Michael W. Wallace

CIK: 0001070123

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)5 (23.8%)

Position reduction

Option Exercises (M)4 (19.0%)

Derivative conversions

Awards (A)8 (38.1%)

Compensation grants

Other (G, F, J, C, D, …)4 (19.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

SPOK

Spok Holdings, Inc

Officer

Discretionary Trading P&L

Holdings

Transaction History (21 total)

SPOK
Spok Holdings, Inc
Aug 3, 2026
Award(A)
Restricted Stock Unit
Direct
13.8K shares-
SPOK
Spok Holdings, Inc
Aug 3, 2026
Award(A)
Restricted Stock Unit
Direct
13.8K shares-
SPOK
Spok Holdings, Inc
Mar 4, 2026
Award(A)
Direct
9.2K shares at avg. $12.14$111K
SPOK
Spok Holdings, Inc
Mar 4, 2026
Exercise(M)
Direct
30.5K shares at avg. $12.14$371K
SPOK
Spok Holdings, Inc
Mar 4, 2026
Tax Payment(F)
Direct
17.9K shares at avg. $12.14$217K
SPOK
Spok Holdings, Inc
Jan 5, 2026
Exercise(M)
Direct
22.9K shares at avg. $13.19$302K
SPOK
Spok Holdings, Inc
Jan 5, 2026
Tax Payment(F)
Direct
11K shares at avg. $13.19$145K
SPOK
Spok Holdings, Inc
Jan 2, 2026
Award(A)
Restricted Stock Unit
Direct
34.1K shares-
SPOK
Spok Holdings, Inc
Jan 2, 2026
Award(A)
Restricted Stock Unit
Direct
34.1K shares-
SPOK
Spok Holdings, Inc
Aug 25, 2025
Sale(S)
Direct
10.8K shares at avg. $17.87$193K
SPOK
Spok Holdings, Inc
Aug 4, 2025
Sale(S)
Direct
10K shares at avg. $18.49$185K
SPOK
Spok Holdings, Inc
May 7, 2025
Sale(S)
Direct
6K shares at avg. $16.53$99K
SPOK
Spok Holdings, Inc
Mar 7, 2025
Tax Payment(F)
Direct
20.3K shares at avg. $16.85$343K
SPOK
Spok Holdings, Inc
Mar 7, 2025
Exercise(M)
Direct
34.7K shares at avg. $16.85$584K
SPOK
Spok Holdings, Inc
Mar 7, 2025
Award(A)
Direct
10.4K shares at avg. $16.85$175K
SPOK
Spok Holdings, Inc
Mar 4, 2025
Sale(S)
Direct
10K shares at avg. $16.53$165K
SPOK
Spok Holdings, Inc
Jan 3, 2025
Award(A)
Restricted Stock Unit
Direct
18.7K shares-
SPOK
Spok Holdings, Inc
Jan 3, 2025
Award(A)
Restricted Stock Unit
Direct
18.7K shares-
SPOK
Spok Holdings, Inc
Jan 3, 2025
Exercise(M)
Direct
28.2K shares at avg. $16.05$453K
SPOK
Spok Holdings, Inc
Jan 3, 2025
Tax Payment(F)
Direct
13.2K shares at avg. $16.05$212K
SPOK
Spok Holdings, Inc
Nov 19, 2024
Sale(S)
Direct
12K shares at avg. $15.95$191K

		Type	Shares	Price		Ownership
Aug 3, 2026	SPOK Spok Holdings, Inc	Award(A) Restricted Stock Unit	13,761	-	-	Direct
Aug 3, 2026	SPOK Spok Holdings, Inc	Award(A) Restricted Stock Unit	13,761	-	-	Direct
Mar 4, 2026	SPOK Spok Holdings, Inc	Award(A)	9,157	$12.14	$111,166	Direct
Mar 4, 2026	SPOK Spok Holdings, Inc	Exercise(M)	30,525	$12.14	$370,574	Direct
Mar 4, 2026	SPOK Spok Holdings, Inc	Tax Payment(F)	17,897	$12.14	$217,270	Direct
Jan 5, 2026	SPOK Spok Holdings, Inc	Exercise(M)	22,865	$13.19	$301,589	Direct
Jan 5, 2026	SPOK Spok Holdings, Inc	Tax Payment(F)	10,985	$13.19	$144,892	Direct
Jan 2, 2026	SPOK Spok Holdings, Inc	Award(A) Restricted Stock Unit	34,116	-	-	Direct
Jan 2, 2026	SPOK Spok Holdings, Inc	Award(A) Restricted Stock Unit	34,117	-	-	Direct
Aug 25, 2025	SPOK Spok Holdings, Inc	Sale(S)	10,806	$17.87	$193,118	Direct
Aug 4, 2025	SPOK Spok Holdings, Inc	Sale(S)	10,000	$18.49	$184,869	Direct
May 7, 2025	SPOK Spok Holdings, Inc	Sale(S)	6,000	$16.53	$99,167	Direct
Mar 7, 2025	SPOK Spok Holdings, Inc	Tax Payment(F)	20,334	$16.85	$342,628	Direct
Mar 7, 2025	SPOK Spok Holdings, Inc	Exercise(M)	34,682	$16.85	$584,392	Direct
Mar 7, 2025	SPOK Spok Holdings, Inc	Award(A)	10,404	$16.85	$175,307	Direct
Mar 4, 2025	SPOK Spok Holdings, Inc	Sale(S)	10,000	$16.53	$165,331	Direct
Jan 3, 2025	SPOK Spok Holdings, Inc	Award(A) Restricted Stock Unit	18,691	-	-	Direct
Jan 3, 2025	SPOK Spok Holdings, Inc	Award(A) Restricted Stock Unit	18,692	-	-	Direct
Jan 3, 2025	SPOK Spok Holdings, Inc	Exercise(M)	28,195	$16.05	$452,530	Direct
Jan 3, 2025	SPOK Spok Holdings, Inc	Tax Payment(F)	13,237	$16.05	$212,454	Direct
Nov 19, 2024	SPOK Spok Holdings, Inc	Sale(S)	12,000	$15.95	$191,382	Direct

1-21 of 21 transactions

About WALLACE MICHAEL W

WALLACE MICHAEL W (SEC CIK 0001070123) files insider reports with the SEC as Chief Operating Officer of Spok Holdings, Inc (SPOK).

Signal8 holds 12 ownership filings by WALLACE MICHAEL W, all Form 4s, filed between Nov 20, 2024 and Aug 4, 2026. Those filings report 21 transactions, from Nov 19, 2024 to Aug 3, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on WALLACE MICHAEL W's filings is in PLANO, TX.

Recent filings by WALLACE MICHAEL W

Aug 3, 2026: Grants or awards of SPOK derivative securities (2 lines, Form 4, code A).
Mar 4, 2026: Grant or award of SPOK shares (Form 4, code A).
Mar 4, 2026: Option exercise of SPOK shares (Form 4, code M).
Mar 4, 2026: Tax withholding of SPOK shares (Form 4, code F).
Jan 5, 2026: Option exercise of SPOK shares (Form 4, code M).

Other insiders filing for Spok Holdings, Inc (SPOK)

Stein Todd J, Director
Hyun Randy, Director
SHOCKLEY BRETT A, Director
Byrne Barbara Peterson, Director
COURNOYER CHRISTINE, Director
Woods-Keisling Sharon, Corporate Secretary, Treasurer

How to read Form 4 transaction codes