Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Spok Holdings, Inc

SPOK · Nasdaq · CIK 0001289945 · Communication Services · Health Information Services

INSIDER SIGNAL

33.9 / 100

2 buyers · 4 purchase transaction lines · $473.4K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeLow
RoleModerate
RecencyLow
ConvictionLow
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+14.0 / 35
Purchase size+4.7 / 25
Role+13.0 / 20
Recency+1.3 / 10
Conviction+0.9 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 2 insider(s), not 4+
  • ⚠ Purchase size is modest relative to the model scale
  • ⚠ Role scores low · most senior buyer: President & CEO (CEO, chair and 10% owners score lowest)
  • ⚠ Purchase activity is becoming less recent
  • ⚠ Buying conviction is reduced by concurrent selling

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
COURNOYER CHRISTINEDirector
○▼○
Stein Todd JDirector
●○○
Hyun RandyDirector
○○
Byrne Barbara PetersonDirector
○○
Woods-Keisling SharonCorporate Secretary, Treasurer
▼▼
SHOCKLEY BRETT ADirector
○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 1 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS2
PURCHASE CONCENTRATION77%Largest buyer: Stein Todd J · $366.5K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-05-11–2026-05-12

Roles in the peak window: President & CEO. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

33.9 / 100

Latest recorded score

→ +0.0 ptsversus the previous recorded snapshot
  1. 34.1
  2. 34.1
  3. 34.0
  4. 33.9
  5. 33.9

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

4Purchases
3Sales
45Other Form 4 lines
34SEC filings · 365 days
BUYING4 qualifying P line(s) · 180 days
SELLING3 sale line(s) · context only
OTHER12 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot detected in parsed evidence

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
+0.9%
3M
+1.7%
6M
-3.4%
12M
-32.6%

Volatility & liquidity

Volatility
29.2%
Beta
—
Avg daily value
USD 1.6M

Valuation

Market cap
USD 224.5M
P/E
14.1×

Fundamentals

Profit margin
11.4%
ROE
10.8%
Industry
Health Information Services

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, P/E, Profit margin, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-07-24 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
691,441
Previous report
679,661
Avg daily volume
132,798
Days to cover
5.2

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-16Stein Todd JPurchase (P)Common Stock35,211USD 10.41USD 366,547SEC filing ↗
2026-05-12KELLY VINCENT DPurchase (P)Common Stock5,000USD 10.70USD 53,500SEC filing ↗
2026-05-11KELLY VINCENT DPurchase (P)Common Stock5,000USD 10.67USD 53,350SEC filing ↗
2023-11-06Byrne Barbara PetersonPurchase (P)Common Stock10,000USD 15.96USD 159,600SEC filing ↗
2023-06-01Rice CalvinPurchase (P)Common Stock420USD 11.90USD 4,998SEC filing ↗
2023-03-17Stein Todd JPurchase (P)Common Stock9,567USD 9.64USD 92,226SEC filing ↗
2023-03-17Rice CalvinPurchase (P)Common Stock1,000USD 9.67USD 9,670SEC filing ↗
2023-03-16Stein Todd JPurchase (P)Common Stock5,382USD 9.43USD 50,752SEC filing ↗
2023-03-15Stein Todd JPurchase (P)Common Stock1,348USD 9.72USD 13,103SEC filing ↗
2023-03-13Stein Todd JPurchase (P)Common Stock7,751USD 9.84USD 76,270SEC filing ↗
2023-03-10Stein Todd JPurchase (P)Common Stock3,500USD 10.39USD 36,365SEC filing ↗
2023-03-09Stein Todd JPurchase (P)Common Stock2,883USD 10.43USD 30,070SEC filing ↗
2023-03-08Stein Todd JPurchase (P)Common Stock6,190USD 10.26USD 63,509SEC filing ↗
2023-03-08WALLACE MICHAEL WPurchase (P)Common Stock2,500USD 10.25USD 25,625SEC filing ↗
2023-03-07Rice CalvinPurchase (P)Common Stock1,000USD 10.77USD 10,770SEC filing ↗

Form 4 evidence

52 transaction lines in the latest 365-day window; 595 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01Stein Todd JAward / grant (A)Common Stock2,383USD 10.49USD 24,998SEC filing ↗
2026-10-01SHOCKLEY BRETT AAward / grant (A)Common Stock2,383USD 10.49USD 24,998SEC filing ↗
2026-10-01Hyun RandyAward / grant (A)Common Stock2,383USD 10.49USD 24,998SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01Stein Todd JAward / grant (A)Common Stock2,383USD 10.49USD 24,998SEC filing ↗
2026-10-01SHOCKLEY BRETT AAward / grant (A)Common Stock2,383USD 10.49USD 24,998SEC filing ↗
2026-10-01Hyun RandyAward / grant (A)Common Stock2,383USD 10.49USD 24,998SEC filing ↗
2026-10-01COURNOYER CHRISTINEAward / grant (A)Common Stock2,383USD 10.49USD 24,998SEC filing ↗
2026-10-01Byrne Barbara PetersonAward / grant (A)Common Stock2,383USD 10.49USD 24,998SEC filing ↗
2026-08-10Woods-Keisling SharonSale (S)Common Stock20,000USD 11.30USD 226,000SEC filing ↗
2026-08-10COURNOYER CHRISTINESale (S)Common Stock8,320USD 11.28USD 93,850SEC filing ↗
2026-07-01Stein Todd JAward / grant (A)Common Stock2,441USD 10.24USD 24,996SEC filing ↗
2026-07-01SHOCKLEY BRETT AAward / grant (A)Common Stock2,441USD 10.24USD 24,996SEC filing ↗
2026-07-01Hyun RandyAward / grant (A)Common Stock2,441USD 10.24USD 24,996SEC filing ↗
2026-07-01COURNOYER CHRISTINEAward / grant (A)Common Stock2,441USD 10.24USD 24,996SEC filing ↗
2026-07-01Byrne Barbara PetersonAward / grant (A)Common Stock2,441USD 10.24USD 24,996SEC filing ↗
2026-06-16Stein Todd JPurchase (P)Common Stock35,211USD 10.41USD 366,547SEC filing ↗
2026-05-12KELLY VINCENT DPurchase (P)Common Stock5,000USD 10.70USD 53,500SEC filing ↗
2026-05-11KELLY VINCENT DPurchase (P)Common Stock5,000USD 10.67USD 53,350SEC filing ↗
2026-05-05Woods-Keisling SharonSale (S)Common Stock10,000USD 11.00USD 110,000SEC filing ↗
2026-04-14Rice CalvinAward / grant (A)Common Stock—USD —USD —SEC filing ↗
2026-04-01Stein Todd JAward / grant (A)Common Stock2,294USD 10.90USD 25,005SEC filing ↗
2026-04-01SHOCKLEY BRETT AAward / grant (A)Common Stock2,294USD 10.90USD 25,005SEC filing ↗
2026-04-01Hyun RandyAward / grant (A)Common Stock2,294USD 10.90USD 25,005SEC filing ↗
2026-04-01COURNOYER CHRISTINEAward / grant (A)Common Stock2,294USD 10.90USD 25,005SEC filing ↗
2026-04-01Byrne Barbara PetersonAward / grant (A)Common Stock2,294USD 10.90USD 25,005SEC filing ↗
2026-03-04Woods-Keisling SharonOption exercise / conversion (M)Common Stock11,447USD 12.14USD 138,967SEC filing ↗
2026-03-04Woods-Keisling SharonTax withholding (F)Common Stock4,469USD 12.14USD 54,254SEC filing ↗
2026-03-04Woods-Keisling SharonAward / grant (A)Common Stock3,434USD 12.14USD 41,689SEC filing ↗
2026-03-04WALLACE MICHAEL WOption exercise / conversion (M)Common Stock30,525USD 12.14USD 370,574SEC filing ↗
2026-03-04WALLACE MICHAEL WTax withholding (F)Common Stock17,897USD 12.14USD 217,270SEC filing ↗
2026-03-04WALLACE MICHAEL WAward / grant (A)Common Stock9,157USD 12.14USD 111,166SEC filing ↗
2026-03-04Rice CalvinOption exercise / conversion (M)Common Stock13,736USD 12.14USD 166,755SEC filing ↗
2026-03-04Rice CalvinTax withholding (F)Common Stock8,759USD 12.14USD 106,334SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerSPOK
CIK0001289945
SectorCommunication Services
IndustryHealth Information Services Yahoo Finance
SEC SIC4812 Radiotelephone Communications
ExchangeNasdaq

Data coverage

Local Form 4 history595 transaction lines from 2020-01-02 to 2026-10-01
156 P purchase lines · 91 S sale lines · 348 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.