Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-19 · Built: 2026-10-19 · 中文

← United States · Coverage record

US · SEC FORM 4

Dolby Laboratories, Inc.

DLB · NYSE · CIK 0001308547 · Industrials · Specialty Business Services

INSIDER SIGNAL

No active buy signal

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

31 Form 4 transaction lines observed in the same window
19 sales · 12 option, withholding, award, gift or other lines

Last qualifying purchase2024-06-17 · YEAMAN KEVIN J · $200

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
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.

Purchase breadth, concentration & cluster buying

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

Insider activity timeline

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

AprMayJunJulAugSepOct
Couling John DSVP, Entertainment
▼○▼○▼○▼○▼○▼○○▼
Nicholson RyanVP, CAO and Corp. Controller
▼▼▼
Revankar ShriramSVP, Advanced Technology Group
▼○▼
DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999; Dolby DagmarTenPercentOwner
○○
Whitten MarcPresident and CEO
○
SHERMAN MARK ANDREWEVP, Gen. Counsel & Secretary
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 2 additional owner(s) remain in Form 4 evidence.

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: 2024-06-17 · YEAMAN KEVIN J.

Recent Form 4 activity

0Purchases
38Sales
57Other Form 4 lines
44SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING19 sale line(s) · context only
OTHER12 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
5,938,004
Previous report
5,530,847
Avg daily volume
1,012,718
Days to cover
5.9

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
2024-06-17YEAMAN KEVIN JPurchase (P)Class A Common Stock3USD 78.15USD 200SEC filing ↗

Form 4 evidence

95 transaction lines in the latest 365-day window; 709 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01Couling John DSale (S)Class A Common Stock7,667USD 58.78USD 450,690SEC filing ↗
2026-10-01Couling John DOption exercise / conversion (M)Class A Common Stock7,667USD 45.50USD 348,848SEC filing ↗
2026-09-15Whitten MarcAward / grant (A)Class A Common Stock160,256USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01Couling John DSale (S)Class A Common Stock7,667USD 58.78USD 450,690SEC filing ↗
2026-10-01Couling John DOption exercise / conversion (M)Class A Common Stock7,667USD 45.50USD 348,848SEC filing ↗
2026-09-15Whitten MarcAward / grant (A)Class A Common Stock160,256USD 0.00USD 0SEC filing ↗
2026-09-15SHERMAN MARK ANDREWAward / grant (A)Class A Common Stock48,076USD 0.00USD 0SEC filing ↗
2026-09-15Couling John DAward / grant (A)Class A Common Stock48,076USD 0.00USD 0SEC filing ↗
2026-09-01Couling John DSale (S)Class A Common Stock7,667USD 61.05USD 468,070SEC filing ↗
2026-09-01Couling John DOption exercise / conversion (M)Class A Common Stock7,667USD 45.50USD 348,848SEC filing ↗
2026-08-28DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999; Dolby DagmarGift (G)Class A Common Stock300,000USD 0.00USD 0SEC filing ↗
2026-08-28DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999; Dolby DagmarC (C)Class A Common Stock300,000USD 0.00USD 0SEC filing ↗
2026-08-25Nicholson RyanSale (S)Class A Common Stock1,183USD 65.28USD 77,226SEC filing ↗
2026-08-14Revankar ShriramSale (S)Class A Common Stock3,000USD 62.71USD 188,130SEC filing ↗
2026-08-10Nicholson RyanSale (S)Class A Common Stock1,348USD 62.04USD 83,630SEC filing ↗
2026-08-04Nicholson RyanSale (S)Class A Common Stock357USD 60.63USD 21,645SEC filing ↗
2026-08-03Couling John DSale (S)Class A Common Stock7,667USD 60.00USD 460,018SEC filing ↗
2026-08-03Couling John DOption exercise / conversion (M)Class A Common Stock7,667USD 45.50USD 348,848SEC filing ↗
2026-07-01Couling John DSale (S)Class A Common Stock7,667USD 53.20USD 407,884SEC filing ↗
2026-07-01Couling John DOption exercise / conversion (M)Class A Common Stock7,667USD 45.50USD 348,848SEC filing ↗
2026-06-01Couling John DSale (S)Class A Common Stock7,666USD 55.63USD 426,442SEC filing ↗
2026-06-01Couling John DOption exercise / conversion (M)Class A Common Stock7,666USD 45.50USD 348,803SEC filing ↗
2026-05-22Pendleton ToddSale (S)Class A Common Stock11,876USD 54.55USD 647,836SEC filing ↗
2026-05-18Revankar ShriramTax withholding (F)Class A Common Stock4,329USD 54.21USD 234,675SEC filing ↗
2026-05-15Revankar ShriramSale (S)Class A Common Stock3,000USD 54.90USD 164,700SEC filing ↗
2026-05-12Park Robert JSale (S)Class A Common Stock4,895USD 56.68USD 277,440SEC filing ↗
2026-05-05Couling John DSale (S)Class A Common Stock7,666USD 57.55USD 441,207SEC filing ↗
2026-05-05Couling John DOption exercise / conversion (M)Class A Common Stock7,666USD 45.50USD 348,803SEC filing ↗
2026-05-04Couling John DSale (S)Class A Common Stock4,688USD 58.47USD 274,107SEC filing ↗
2026-04-01Rollins EmilySale (S)Class A Common Stock1,000USD 60.08USD 60,080SEC filing ↗
2026-02-25DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999; Dolby DagmarGift (G)Class A Common Stock10,000USD 0.00USD 0SEC filing ↗
2026-02-25DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999; Dolby DagmarC (C)Class A Common Stock10,000USD 0.00USD 0SEC filing ↗
2026-02-17Revankar ShriramSale (S)Class A Common Stock3,000USD 66.14USD 198,420SEC 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 date2026-10-19
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerDLB
CIK0001308547
SectorIndustrials
IndustrySpecialty Business Services Yahoo Finance
SEC SIC6794 Patent Owners & Lessors
ExchangeNYSE

Data coverage

Local Form 4 history709 transaction lines from 2020-01-02 to 2026-10-01
1 P purchase lines · 297 S sale lines · 411 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.