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

Digimarc CORP

DMRC · — · CIK 0001438231 · Technology · Software—Application

INSIDER SIGNAL

No active buy signal

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

23 Form 4 transaction lines observed in the same window
0 sales · 23 option, withholding, award, gift or other lines

Last qualifying purchase2023-05-18 · Sickles Ken · $20.0K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
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
Quinn Carle AnnEVP, Chief Operating Officer
○○
Beck CharlesEVP, Chief Financial Officer
○○
Rodriguez TonyEVP, Chief Technology Officer
○○
Sickles KenEVP, Chief Product Officer
○○
Bajaj RishiDirector,TenPercentOwner
○
Anderson-Williams LaShondaDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 5 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: 2023-05-18 · Sickles Ken.

Recent Form 4 activity

0Purchases
0Sales
55Other Form 4 lines
34SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER23 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
2,550,721
Previous report
2,483,811
Avg daily volume
180,492
Days to cover
14.1

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
2023-05-18Sickles KenPurchase (P)Common Stock648USD 30.85USD 20,003SEC filing ↗
2022-03-09mccormack rileyPurchase (P)Common Stock10,000USD 25.27USD 252,684SEC filing ↗
2022-03-08mccormack rileyPurchase (P)Common Stock20,000USD 23.99USD 479,775SEC filing ↗
2022-03-08Syrett AliciaPurchase (P)Common Stock2,500USD 22.53USD 56,325SEC filing ↗
2021-08-09Syrett AliciaPurchase (P)Common Stock4,000USD 28.60USD 114,400SEC filing ↗
2021-05-06Dadlani SandeepPurchase (P)Common Stock100USD 30.28USD 3,028SEC filing ↗
2021-05-05Dadlani SandeepPurchase (P)Common Stock700USD 31.86USD 22,299SEC filing ↗
2021-05-04Dadlani SandeepPurchase (P)Common Stock100USD 32.95USD 3,295SEC filing ↗
2020-09-30Walter AndrewPurchase (P)Common Stock5,000USD 22.42USD 112,100SEC filing ↗

Form 4 evidence

55 transaction lines in the latest 365-day window; 384 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-15Sickles KenTax withholding (F)Common Stock1,393USD 9.80USD 13,651SEC filing ↗
2026-05-15Sickles KenAward / grant (A)Common Stock19,611USD 9.80USD 192,188SEC filing ↗
2026-05-15Rodriguez TonyTax withholding (F)Common Stock1,797USD 9.80USD 17,611SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-15Sickles KenTax withholding (F)Common Stock1,393USD 9.80USD 13,651SEC filing ↗
2026-05-15Sickles KenAward / grant (A)Common Stock19,611USD 9.80USD 192,188SEC filing ↗
2026-05-15Rodriguez TonyTax withholding (F)Common Stock1,797USD 9.80USD 17,611SEC filing ↗
2026-05-15Rodriguez TonyAward / grant (A)Common Stock24,459USD 9.80USD 239,698SEC filing ↗
2026-05-15Quinn Carle AnnTax withholding (F)Common Stock5,749USD 9.80USD 56,340SEC filing ↗
2026-05-15Quinn Carle AnnAward / grant (A)Common Stock28,807USD 9.80USD 282,309SEC filing ↗
2026-05-15Beck CharlesTax withholding (F)Common Stock2,815USD 9.80USD 27,587SEC filing ↗
2026-05-15Beck CharlesAward / grant (A)Common Stock28,807USD 9.80USD 282,309SEC filing ↗
2026-04-30Bajaj RishiAward / grant (A)Common Stock13,643USD 7.33USD 100,003SEC filing ↗
2026-04-30Park MichaelAward / grant (A)Common Stock13,643USD 7.33USD 100,003SEC filing ↗
2026-04-30McIlwain DanaAward / grant (A)Common Stock13,643USD 7.33USD 100,003SEC filing ↗
2026-04-30Kool KathleenAward / grant (A)Common Stock13,643USD 7.33USD 100,003SEC filing ↗
2026-04-30Dadlani SandeepAward / grant (A)Common Stock13,643USD 7.33USD 100,003SEC filing ↗
2026-04-30CHESTON SHEILA C.Award / grant (A)Common Stock13,643USD 7.33USD 100,003SEC filing ↗
2026-04-30Anderson-Williams LaShondaAward / grant (A)Common Stock13,643USD 7.33USD 100,003SEC filing ↗
2026-04-01Sickles KenAward / grant (A)Common Stock3,375USD 5.06USD 17,078SEC filing ↗
2026-04-01Rodriguez TonyAward / grant (A)Common Stock3,375USD 5.06USD 17,078SEC filing ↗
2026-04-01Quinn Carle AnnAward / grant (A)Common Stock3,894USD 5.06USD 19,704SEC filing ↗
2026-04-01Beck CharlesAward / grant (A)Common Stock3,894USD 5.06USD 19,704SEC filing ↗
2026-04-01Park MichaelAward / grant (A)Common Stock1,272USD 4.91USD 6,246SEC filing ↗
2026-04-01McIlwain DanaAward / grant (A)Common Stock1,654USD 4.91USD 8,121SEC filing ↗
2026-04-01Dadlani SandeepAward / grant (A)Common Stock2,545USD 4.91USD 12,496SEC filing ↗
2026-04-01Anderson-Williams LaShondaAward / grant (A)Common Stock1,654USD 4.91USD 8,121SEC filing ↗
2026-02-15Sickles KenTax withholding (F)Common Stock591USD 4.86USD 2,872SEC filing ↗
2026-02-15Sickles KenAward / grant (A)Common Stock10,847USD 4.86USD 52,716SEC filing ↗
2026-02-15Rodriguez TonyTax withholding (F)Common Stock823USD 4.86USD 4,000SEC filing ↗
2026-02-15Rodriguez TonyAward / grant (A)Common Stock9,901USD 4.86USD 48,119SEC filing ↗
2026-02-15Quinn Carle AnnTax withholding (F)Common Stock4,054USD 4.86USD 19,702SEC filing ↗
2026-02-15Quinn Carle AnnAward / grant (A)Common Stock9,257USD 4.86USD 44,989SEC filing ↗
2026-02-15Karamanos GeorgeTax withholding (F)Common Stock1,097USD 4.86USD 5,331SEC 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 · —
TickerDMRC
CIK0001438231
SectorTechnology
IndustrySoftware—Application Yahoo Finance
SEC SIC7373 Services-Computer Integrated Systems Design
Exchange—

Data coverage

Local Form 4 history384 transaction lines from 2020-02-15 to 2026-05-15
15 P purchase lines · 45 S sale lines · 324 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.