Public ownership evidence

Dolby Laboratories, Inc.Class A (DLB) Ownership Disclosures

Read DLB insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Dolby Laboratories, Inc.Class A: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-10-06
Trade date
2026-10-01
Reporting owners
Couling John D
Code
S
Shares
836
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001193125-26-414725
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read DLB fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read DLB fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity

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2026-10-062026-10-01Couling John DS836Not reported
2026-10-062026-10-01Couling John DS6,831Not reported
2026-09-172026-09-15Whitten MarcA600,000Not reported
2026-09-172026-09-15Whitten MarcA160,256Not reported
2026-09-172026-09-15Couling John DA48,076Not reported
2026-09-172026-09-15SHERMAN MARK ANDREWA48,076Not reported
2026-09-042026-09-01Couling John DS7,667Not reported
2026-08-282026-08-25Nicholson RyanS1,183Not reported
2026-08-192026-08-14Revankar ShriramS3,000Not reported
2026-08-132026-08-10Nicholson RyanS1,348Not reported
2026-08-072026-08-04Nicholson RyanS357Not reported
2026-08-062026-08-03Couling John DS6,884Not reported
2026-08-062026-08-03Couling John DS783Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2026-03-312026-08-298$480None
B. Riley Wealth Advisors, Inc.2025-03-312026-08-292,804$225,178None
Advisors Asset Management, Inc.2022-12-312026-08-282,740$193,280None
Corient Private Wealth LP2026-06-302026-08-284,449$233,930None
Advisors Asset Management, Inc.2024-03-312026-08-272,778$232,713None
Advisors Asset Management, Inc.2025-03-312026-08-274,830$387,897None
Advisors Asset Management, Inc.2022-09-302026-08-271,559$102,000None
Advisors Asset Management, Inc.2023-06-302026-08-273,773$315,725None
Advisors Asset Management, Inc.2023-09-302026-08-274,300$340,818None
Advisors Asset Management, Inc.2023-03-312026-08-273,286$280,690None
Advisors Asset Management, Inc.2025-09-302026-08-273,931$284,486None
Advisors Asset Management, Inc.2023-12-312026-08-273,167$272,932None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-264,100$215,578None
Advisors Asset Management, Inc.2025-06-302026-08-254,564$338,923None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2570,467$3,705,155None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-253,705,155$70,467,000None
Advisors Asset Management, Inc.2024-09-302026-08-223,560$272,447None
Advisors Asset Management, Inc.2024-06-302026-08-222,807$222,399None
Advisors Asset Management, Inc.2024-12-312026-08-224,539$354,496None
Advisors Asset Management, Inc.2025-12-312026-08-223,078$197,669None
Assenagon Asset Management S.A.2026-06-302026-08-22104,202$5,478,941None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-204,557$239,608None
Ensign Peak Advisors, Inc2026-03-312026-08-193,368$202,282None
Ensign Peak Advisors, Inc2025-12-312026-08-193,368$216,293None
Ensign Peak Advisors, Inc2025-09-302026-08-1910,718$775,662None
Fulcrum Asset Management LLP2026-06-302026-08-19172$8,965None
Corient Private Wealth LP2026-06-302026-08-184,456$234,295None
Empowered Funds, LLC2026-06-302026-08-1837,411$1,967,070None
Empowered Funds, LLC2026-06-302026-08-186,528$343,242None
Empowered Funds, LLC2026-06-302026-08-182,632$138,391None
Empowered Funds, LLC2026-06-302026-08-18144$7,572None
Transamerica Financial Advisors, LLC2026-06-302026-08-1830$1,611None
UNITED CAPITAL FINANCIAL ADVISORS, LLC2026-06-302026-08-184,022$211,477None
FORMULA GROWTH LTD2026-06-302026-08-1815,900$836,022None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-1818,086$950,962None
Graham Capital Management, L.P.2026-06-302026-08-1568,192$3,585,535None
SEI INVESTMENTS CO2026-06-302026-08-1593,751$4,929,428None
SEI INVESTMENTS CO2026-06-302026-08-1530,762$1,617,890None
SEI INVESTMENTS CO2026-06-302026-08-15181,473$9,541,850None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15127$6,680None
Federation des caisses Desjardins du Quebec2026-06-302026-08-154,244$223,150None
Advisors Asset Management, Inc.2026-06-302026-08-1528,516$1,499,371None
Quarry LP2026-06-302026-08-1568$3,576None
Ameritas Advisory Services, LLC2026-06-302026-08-155,701$299,759None
XTX Topco Ltd2026-06-302026-08-1519,231$1,011,166None
Aquatic Capital Management LLC2026-06-302026-08-1548,537$2,552,075None
Treasurer of the State of North Carolina2026-06-302026-08-1525,343$1,333,000None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15808,225$42,496,471None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15808,225$42,496,471None
WORLDQUANT MILLENNIUM ADVISORS LLC2026-06-302026-08-1565,680$3,453,454None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗B. Riley Wealth Advisors, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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