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Insider · CIK 0001537372

Dagmar Dolby

owner

Files at DLB (Dolby Laboratories, Inc.). First filing -, latest -.

Dagmar Dolby files SEC Form 4 as 10% owner at DLB (Dolby Laboratories, Inc.). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.

A track record needs three past buys with six months of prices behind them; Dagmar Dolby has 0, so none is measured yet.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 0
$0 bought, $0 sold

Signals

This insider’s open-market buys and sells, scored.

No scored open-market trades yet.

Transactions

Every row this insider has filed, 22 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Oct 2, 2026DLB
Dolby Laboratories, Inc.
GGift
Class B Common Stockderivativeindirect: By a trust
-24,108,162$0.00$0011 d ago
Oct 2, 2026DLB
Dolby Laboratories, Inc.
GGift
Class B Common Stockderivativeindirect: By a trust
+24,108,162$0.00$028,480,27911 d ago
Aug 28, 2026DLB
Dolby Laboratories, Inc.
CConversion
Class A Common Stockindirect: By Trust
+300,000$0.00$0300,000Aug 28, 2026
Aug 28, 2026DLB
Dolby Laboratories, Inc.
GGift
Class A Common Stockindirect: By Trust
-300,000$0.00$00Aug 28, 2026
Aug 28, 2026DLB
Dolby Laboratories, Inc.
GGift
Class B Common Stockderivativeindirect: By a trust
-2,000,000$0.00$04,672,117Aug 28, 2026
Aug 28, 2026DLB
Dolby Laboratories, Inc.
GGift
Class B Common Stockderivativeindirect: By a trust
+1,000,000$0.00$01,000,000Aug 28, 2026
Aug 28, 2026DLB
Dolby Laboratories, Inc.
GGift
Class B Common Stockderivativeindirect: By a trust
+1,000,000$0.00$01,000,000Aug 28, 2026
Aug 28, 2026DLB
Dolby Laboratories, Inc.
CConversion
Class B Common Stockderivativeindirect: By Trust
-300,000$0.00$04,372,117Aug 28, 2026
Feb 25, 2026DLB
Dolby Laboratories, Inc.
CConversion
Class A Common Stockindirect: By Trust
+10,000$0.00$010,000Feb 27, 2026
Feb 25, 2026DLB
Dolby Laboratories, Inc.
GGift
Class A Common Stockindirect: By Trust
-10,000$0.00$00Feb 27, 2026
Feb 25, 2026DLB
Dolby Laboratories, Inc.
GGift
Class B Common Stockderivativeindirect: By a trust
-1,000,000$0.00$06,682,117Feb 27, 2026
Feb 25, 2026DLB
Dolby Laboratories, Inc.
GGift
Class B Common Stockderivativeindirect: By a trust
+1,000,000$0.00$01,000,000Feb 27, 2026
Feb 25, 2026DLB
Dolby Laboratories, Inc.
CConversion
Class B Common Stockderivativeindirect: By Trust
-10,000$0.00$06,672,117Feb 27, 2026
Feb 11, 2026DLB
Dolby Laboratories, Inc.
CConversion
Class A Common Stockindirect: By Trust
+380,000$0.00$0380,000Feb 13, 2026
Feb 11, 2026DLB
Dolby Laboratories, Inc.
GGift
Class A Common Stockindirect: By Trust
-380,000$0.00$00Feb 13, 2026
Feb 11, 2026DLB
Dolby Laboratories, Inc.
CConversion
Class B Common Stockderivativeindirect: By Trust
-380,000$0.00$07,682,117Feb 13, 2026
Feb 19, 2025DLB
Dolby Laboratories, Inc.
CConversion
Class A Common Stockindirect: By Trust
+510,000$0.00$0510,000Feb 21, 2025
Feb 19, 2025DLB
Dolby Laboratories, Inc.
GGift
Class A Common Stockindirect: By Trust
-510,000$0.00$00Feb 21, 2025
Feb 19, 2025DLB
Dolby Laboratories, Inc.
CConversion
Class B Common Stockderivativeindirect: By Trust
-510,000$0.00$08,062,117Feb 21, 2025
Nov 21, 2024DLB
Dolby Laboratories, Inc.
CConversion
Class A Common Stockindirect: By Trust
+500,000$0.00$0500,000Nov 22, 2024
Nov 21, 2024DLB
Dolby Laboratories, Inc.
GGift
Class A Common Stockindirect: By Trust
-500,000$0.00$00Nov 22, 2024
Nov 21, 2024DLB
Dolby Laboratories, Inc.
CConversion
Class B Common Stockderivativeindirect: By Trust
-500,000$0.00$08,572,117Nov 22, 2024

Questions about Dagmar Dolby

Answered from the filings on this page, as of the latest one.

Is Dagmar Dolby buying or selling?

Dagmar Dolby has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.

How did Dagmar Dolby's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Dagmar Dolby has 0.

Where does Dagmar Dolby file Form 4?

Dagmar Dolby has filed Form 4 at DLB (Dolby Laboratories, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Dagmar Dolby: insider trades and track record | InsiderTell