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

Strata Critical Medical, Inc.

SRTA · Nasdaq · CIK 0001779128 · Healthcare · Medical Care Facilities

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

45 Form 4 transaction lines observed in the same window
8 sales · 37 option, withholding, award, gift or other lines

Last qualifying purchase2025-12-09 · Heyburn William A. · $76.0K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesModerate
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

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

AprMayJunJulAugSepOct
Cohen AmirChief Accounting Officer
○○▼▼▼○▼○○○
Tomkiel Melissa M.Co-CEO and General Counsel
○○○▼○○○○○
Heyburn William A.Co-CEO and CFO
○○○▼○○○○○
Wunsch Scott MCEO, Logistics
○○○▼○○○
Love ReginaldDirector
○▼
Verdetto Louis R.CEO, Clinical Services
○
● Purchase▼ Sale○ Other

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

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-12-09 · Heyburn William A..

Recent Form 4 activity

2Purchases
10Sales
61Other Form 4 lines
55SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING8 sale line(s) · context only
OTHER37 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

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 has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

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

Shares short
4,331,692
Previous report
4,358,719
Avg daily volume
713,311
Days to cover
6.1

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
2025-12-09Heyburn William A.Purchase (P)Class A common stock, $0.0001 par value per share17,000USD 4.47USD 75,990SEC filing ↗
2025-12-05LAUCK ANDREWPurchase (P)Class A common stock, $0.0001 par value per share5,000USD 4.37USD 21,850SEC filing ↗
2024-06-10Love ReginaldPurchase (P)Class A common stock, $0.0001 par value per share5,091USD 2.99USD 15,222SEC filing ↗
2024-06-10Borthwick JohnPurchase (P)Class A common stock, $0.0001 par value per share7,743USD 2.97USD 22,997SEC filing ↗
2023-11-13Affeldt EricPurchase (P)Class A common stock, $0.0001 par value per share50,000USD 3.20USD 160,000SEC filing ↗
2021-05-27Affeldt EricPurchase (P)Class A Common Stock10,000USD 9.42USD 94,200SEC filing ↗
2021-05-07Experience Sponsor LLC; RESNICK ERIC CHARLESPurchase (P)Class A Common Stock2,005,000USD 10.00USD 20,050,000SEC filing ↗

Form 4 evidence

73 transaction lines in the latest 365-day window; 409 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-24Tomkiel Melissa M.Tax withholding (F)Class A common stock, $0.0001 par value per share90,797USD 5.27USD 478,500SEC filing ↗
2026-09-24Tomkiel Melissa M.Award / grant (A)Class A common stock, $0.0001 par value per share177,858USD 0.00USD 0SEC filing ↗
2026-09-24Heyburn William A.Tax withholding (F)Class A common stock, $0.0001 par value per share98,356USD 5.27USD 518,336SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-24Tomkiel Melissa M.Tax withholding (F)Class A common stock, $0.0001 par value per share90,797USD 5.27USD 478,500SEC filing ↗
2026-09-24Tomkiel Melissa M.Award / grant (A)Class A common stock, $0.0001 par value per share177,858USD 0.00USD 0SEC filing ↗
2026-09-24Heyburn William A.Tax withholding (F)Class A common stock, $0.0001 par value per share98,356USD 5.27USD 518,336SEC filing ↗
2026-09-24Heyburn William A.Award / grant (A)Class A common stock, $0.0001 par value per share177,858USD 0.00USD 0SEC filing ↗
2026-09-08Wunsch Scott MTax withholding (F)Class A common stock, $0.0001 par value per share5,711USD 5.31USD 30,325SEC filing ↗
2026-09-08Verdetto Louis R.Tax withholding (F)Class A common stock, $0.0001 par value per share5,697USD 5.31USD 30,251SEC filing ↗
2026-09-08Tomkiel Melissa M.Tax withholding (F)Class A common stock, $0.0001 par value per share29,730USD 5.31USD 157,866SEC filing ↗
2026-09-08Heyburn William A.Tax withholding (F)Class A common stock, $0.0001 par value per share31,671USD 5.31USD 168,173SEC filing ↗
2026-09-08Cohen AmirTax withholding (F)Class A common stock, $0.0001 par value per share4,645USD 5.31USD 24,665SEC filing ↗
2026-08-10Love ReginaldSale (S)Class A common stock, $0.0001 par value per share5,091USD 5.75USD 29,273SEC filing ↗
2026-07-31Wunsch Scott MTax withholding (F)Class A common stock, $0.0001 par value per share13,992USD 5.09USD 71,219SEC filing ↗
2026-07-31Tomkiel Melissa M.Tax withholding (F)Class A common stock, $0.0001 par value per share212,309USD 5.09USD 1,080,653SEC filing ↗
2026-07-31Heyburn William A.Tax withholding (F)Class A common stock, $0.0001 par value per share199,209USD 5.09USD 1,013,974SEC filing ↗
2026-07-31Cohen AmirTax withholding (F)Class A common stock, $0.0001 par value per share34,015USD 5.09USD 173,136SEC filing ↗
2026-07-30Wunsch Scott MAward / grant (A)Class A common stock, $0.0001 par value per share57,172USD 0.00USD 0SEC filing ↗
2026-07-30WIESENTHAL ROBERT SAward / grant (A)Class A common stock, $0.0001 par value per share50,234USD 0.00USD 0SEC filing ↗
2026-07-30Tomkiel Melissa M.Award / grant (A)Class A common stock, $0.0001 par value per share415,882USD 0.00USD 0SEC filing ↗
2026-07-30PHILIP EDWARD MAward / grant (A)Class A common stock, $0.0001 par value per share30,913USD 0.00USD 0SEC filing ↗
2026-07-30Love ReginaldAward / grant (A)Class A common stock, $0.0001 par value per share37,675USD 0.00USD 0SEC filing ↗
2026-07-30LAUCK ANDREWAward / grant (A)Class A common stock, $0.0001 par value per share35,260USD 0.00USD 0SEC filing ↗
2026-07-30Heyburn William A.Award / grant (A)Class A common stock, $0.0001 par value per share360,231USD 0.00USD 0SEC filing ↗
2026-07-30Cook William L. IIIAward / grant (A)Class A common stock, $0.0001 par value per share44,438USD 0.00USD 0SEC filing ↗
2026-07-30Cohen AmirAward / grant (A)Class A common stock, $0.0001 par value per share69,206USD 0.00USD 0SEC filing ↗
2026-06-08Wunsch Scott MTax withholding (F)Class A common stock, $0.0001 par value per share5,550USD 5.87USD 32,578SEC filing ↗
2026-06-08Tomkiel Melissa M.Tax withholding (F)Class A common stock, $0.0001 par value per share29,730USD 5.87USD 174,515SEC filing ↗
2026-06-08Heyburn William A.Tax withholding (F)Class A common stock, $0.0001 par value per share31,671USD 5.87USD 185,909SEC filing ↗
2026-06-08Cohen AmirTax withholding (F)Class A common stock, $0.0001 par value per share4,655USD 5.87USD 27,325SEC filing ↗
2026-06-08Wunsch Scott MSale (S)Class A common stock, $0.0001 par value per share5,550USD 5.87USD 32,578SEC filing ↗
2026-06-08Tomkiel Melissa M.Sale (S)Class A common stock, $0.0001 par value per share29,730USD 5.87USD 174,515SEC filing ↗
2026-06-08Heyburn William A.Sale (S)Class A common stock, $0.0001 par value per share31,671USD 5.87USD 185,909SEC 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 · —
TickerSRTA
CIK0001779128
SectorHealthcare
IndustryMedical Care Facilities Yahoo Finance
SEC SIC8000 Services-Health Services
ExchangeNasdaq

Data coverage

Local Form 4 history409 transaction lines from 2021-05-07 to 2026-09-24
7 P purchase lines · 146 S sale lines · 256 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.