Spok Holdings, Inc.
US ˙ NasdaqGS ˙ US84863T1060

SecuritySPOK / Spok Holdings, Inc.
InsiderMichael W Wallace
This page shows the track record and history of WALLACE MICHAEL W insider trades in Spok Holdings, Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Michael W Wallace in SPOK / Spok Holdings, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Max		 Price at
Max		 Max
Profit ($)		 Max Return (%)
2023-03-08 2,500 10.2500 2,500 10.2500 25,625 358 17.9700 19,300 75.32
2022-12-06 2,000 7.7600 2,000 7.7600 15,520
2022-08-19 1,690 7.1400 1,690 7.1400 12,067
2022-05-03 2,313 7.1900 2,313 7.1900 16,630
2020-11-30 2,000 9.8100 2,000 9.8100 19,620
2020-08-03 3,000 10.0600 3,000 10.0600 30,180
2020-03-09 2,000 10.0100 2,000 10.0100 20,020
2019-10-29 3,000 11.9500 3,000 11.9500 35,850

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

SPOK / Spok Holdings, Inc. Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Michael W Wallace in SPOK / Spok Holdings, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Min		 Price at
Min		 Max Loss
Avoided ($)		 Max Loss
Avoided (%)
2025-08-25 10,806 17.8714 10,806 17.8714 193,118 16 17.2900 -6,282 -3.25
2025-08-04 10,000 18.4869 10,000 18.4869 184,869
2025-05-07 6,000 16.5278 6,000 16.5278 99,167
2025-03-04 10,000 16.5331 10,000 16.5331 165,331
2024-11-19 12,000 15.9485 12,000 15.9485 191,382
2024-08-20 25,000 14.7980 25,000 14.7980 369,950
2024-03-01 40,000 17.2356 40,000 17.2356 689,424
2023-12-01 20,000 16.6400 20,000 16.6400 332,800

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

SPOK / Spok Holdings, Inc. Insider Trades
Insider Transaction History
File
Date		 Trade
Date		 Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price		 Unit
Price		 Units
Changed		 Value
Changed (1K)		 Remaining
Options		 Remaining
Shares
2025-08-26 2025-08-25 4 WALLACE MICHAEL W SPOK Common Stock S - Sale D 17.8714 -10,806 -193 40,369
2025-08-05 2025-08-04 4 WALLACE MICHAEL W SPOK Common Stock S - Sale D 18.4869 -10,000 -185 51,175
2025-05-08 2025-05-07 4 WALLACE MICHAEL W SPOK Common Stock S - Sale D 16.5278 -6,000 -99 61,175
2025-03-07 2025-03-07 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 16.8500 -20,334 -343 67,175
2025-03-07 2025-03-07 4 WALLACE MICHAEL W SPOK Common Stock A - Award D 16.8500 10,404 175 87,509
2025-03-07 2025-03-07 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 16.8500 34,682 584 77,105
2025-03-05 2025-03-04 4 WALLACE MICHAEL W SPOK Common Stock S - Sale D 16.5331 -10,000 -165 42,423
2025-01-03 2025-01-03 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 16.0500 -13,237 -212 52,423
2025-01-03 2025-01-03 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 16.0500 28,195 453 65,660
2024-11-20 2024-11-19 4 WALLACE MICHAEL W SPOK Common Stock S - Sale D 15.9485 -12,000 -191 37,465
2024-08-21 2024-08-20 4 WALLACE MICHAEL W SPOK Common Stock S - Sale D 14.7980 -25,000 -370 49,465
2024-03-04 2024-03-01 4 WALLACE MICHAEL W SPOK Common Stock S - Sale D 17.2356 -40,000 -689 74,465
2024-03-01 2024-02-29 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 16.9200 -11,865 -201 114,465
2024-03-01 2024-02-29 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 16.9200 26,307 445 126,330
2024-01-04 2024-01-02 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 15.4800 -14,415 -223 100,023
2024-01-04 2024-01-02 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 15.4800 30,721 476 114,438
2023-12-05 2023-12-01 4 WALLACE MICHAEL W SPOK Common Stock S - Sale D 16.6400 -20,000 -333 83,717
2023-03-08 2023-03-08 4 WALLACE MICHAEL W SPOK Common Stock P - Purchase D 10.2500 2,500 26 103,717
2023-03-03 2023-03-02 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 9.3000 -9,271 -86 101,217
2023-03-03 2023-03-02 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 9.3000 20,556 191 110,488
2023-01-04 2023-01-03 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 8.1900 -13,948 -114 89,932
2023-01-04 2023-01-03 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 8.1900 28,722 235 103,880
2022-12-06 2022-12-06 4 WALLACE MICHAEL W SPOK Common Stock P - Purchase D 7.7600 2,000 16 75,158
2022-08-22 2022-08-19 4 WALLACE MICHAEL W SPOK Common Stock P - Purchase D 7.1400 1,690 12 73,158
2022-05-03 2022-05-03 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 0 146,995
2022-05-03 2022-05-03 4 WALLACE MICHAEL W SPOK Common Stock P - Purchase D 7.1900 2,313 17 71,468
2022-02-25 2022-02-25 4 WALLACE MICHAEL W SPOK Restricted Stock F - Taxes D -917 146,995
2022-02-25 2022-02-25 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -10,395 147,912
2022-02-25 2022-02-25 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 8.6500 -4,689 -41 69,155
2022-02-25 2022-02-25 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 8.6500 10,395 90 73,844
2022-02-24 2022-02-22 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 34,682 158,307
2022-02-24 2022-02-22 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 34,682 158,307
2022-01-04 2021-12-31 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -8,984 17,970
2022-01-04 2021-12-31 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -8,176 8,177
2022-01-04 2021-12-31 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -3,771 0
2022-01-04 2021-12-31 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 9.3300 -10,230 -95 62,637
2022-01-04 2021-12-31 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 9.3300 20,931 195 72,867
2021-07-09 2021-07-09 4 WALLACE MICHAEL W SPOK Restricted Stock Unit A - Award D 0 109,874
2021-07-09 2021-07-09 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 10.0000 -228 -2 51,936
2021-07-09 2021-07-09 4 WALLACE MICHAEL W SPOK Common Stock A - Award D 504 52,164
2021-04-02 2021-04-02 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 10.6800 -210 -2 51,660
2021-04-02 2021-04-02 4 WALLACE MICHAEL W SPOK Common Stock A - Award D 466 51,870
2021-02-26 2021-02-26 4 WALLACE MICHAEL W SPOK Restricted Stock F - Taxes D -627 109,874
2021-02-26 2021-02-26 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -10,555 110,501
2021-02-26 2021-02-26 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 10.1000 -4,761 -48 51,404
2021-02-26 2021-02-26 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 10.1000 10,555 107 56,165
2021-01-22 2021-01-22 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 12.1300 -183 -2 45,610
2021-01-22 2021-01-22 4 WALLACE MICHAEL W SPOK Common Stock A - Award D 406 45,793
2021-01-06 2021-01-04 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 26,954 121,056
2021-01-06 2021-01-04 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 26,954 121,056
2021-01-05 2020-12-31 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -8,176 16,353
2021-01-05 2020-12-31 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -3,771 3,771
2021-01-05 2020-12-31 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -3,728 0
2021-01-05 2020-12-31 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 11.1300 -7,641 -85 46,199
2021-01-05 2020-12-31 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 11.1300 15,675 174 53,840
2020-12-01 2020-11-30 4 WALLACE MICHAEL W SPOK Common Stock P - Purchase D 9.8100 2,000 20 38,165
2020-08-03 2020-08-03 4 WALLACE MICHAEL W SPOK Common Stock P - Purchase D 10.0600 3,000 30 36,165
2020-03-09 2020-03-09 4 WALLACE MICHAEL W SPOK Common Stock P - Purchase D 10.0100 2,000 20 33,165
2020-03-09 2020-03-06 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -7,355 82,823
2020-03-09 2020-03-06 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 9.9600 -3,408 -34 31,165
2020-03-09 2020-03-06 4 WALLACE MICHAEL W SPOK Common Stock A - Award D 9.9600 198 2 34,573
2020-03-09 2020-03-06 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 9.9600 7,355 73 34,375
2020-01-06 2020-01-02 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 24,529 90,178
2020-01-06 2020-01-02 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 24,530 65,649
2020-01-03 2019-12-31 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -3,770 7,542
2020-01-03 2019-12-31 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -3,727 3,728
2020-01-03 2019-12-31 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -2,452 0
2020-01-03 2019-12-31 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 12.2300 -5,016 -61 27,020
2020-01-03 2019-12-31 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 12.2300 9,949 122 32,036
2019-11-01 2019-10-29 4/A WALLACE MICHAEL W SPOK Common Stock P - Purchase D 11.9500 3,000 36 73,155
2019-10-30 2019-10-29 4 WALLACE MICHAEL W SPOK Common Stock A - Award D 11.9500 3,000 36 73,155
2019-04-03 2019-01-11 4/A WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -14,057 51,068
2019-04-03 2019-01-11 4/A WALLACE MICHAEL W SPOK Common Stock F - Taxes D 13.5900 -6,425 -87 19,087
2019-04-03 2019-01-11 4/A WALLACE MICHAEL W SPOK Common Stock M - Exercise D 13.5900 14,057 191 25,512
2019-01-11 2019-01-11 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -14,057 54,795
2019-01-11 2019-01-11 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 13.5900 -6,425 -87 15,314
2019-01-11 2019-01-11 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 13.5900 14,057 191 21,739
2019-01-04 2019-01-02 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 11,312 65,125
2019-01-04 2019-01-02 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 11,312 65,125
2019-01-04 2018-12-31 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -6,179 42,501
2019-01-04 2018-12-31 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 13.2600 -3,115 -41 11,455
2019-01-04 2018-12-31 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 13.2600 6,179 82 14,570
2018-07-17 2018-07-17 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -12,535 48,680
2018-07-17 2018-07-17 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 15.1500 -5,654 -86 8,391
2018-07-17 2018-07-17 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 12,535 14,045
2018-01-03 2018-01-02 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 11,182 61,215
2018-01-03 2018-01-02 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 11,182 61,215
2018-01-03 2018-01-02 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 14,057 38,851
2018-01-03 2017-12-31 4 WALLACE MICHAEL W SPOK Restricted Stock Units M - Exercise D -2,452 24,794
2018-01-03 2017-12-31 4 WALLACE MICHAEL W SPOK Common Stock F - Taxes D 15.6500 -942 -15 1,509
2018-01-03 2017-12-31 4 WALLACE MICHAEL W SPOK Common Stock M - Exercise D 2,452 2,452
2017-07-19 2017-07-17 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 12,535 27,246
2017-03-29 2017-03-27 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 7,355 14,711
2017-03-29 2017-03-27 4 WALLACE MICHAEL W SPOK Restricted Stock Units A - Award D 7,356 7,356
P
Köp på öppna marknaden eller privat köp av icke-derivatsäkerhet
S
Köp på öppna marknaden eller privat försäljning av icke-derivatsäkerhet
A
Bevilja, tilldelning eller annat förvärv av värdepapper från företaget (såsom en option)
C
Omvandling av derivat
D
Försäljning eller överföring av värdepapper tillbaka til företaget
F
Betalning av lösenpris eller skatteskuld med del av värdepapper som erhållits från bolaget
G
Överlåtelse av värdepapper från eller till insidern
K
Aktieswappar och liknande säkringsaffärer
M
Utövande eller omvandling av derivatsäkerhet som erhållits från företaget (som en option)
V
En transaktion friviligt rapporterad på schema 4
J
Andra (med en fotnot som beskriver transaktionen)