Dolby Laboratories, Inc.
US ˙ NYSE ˙ US25659T1079

SecurityDLB / Dolby Laboratories, Inc.
InstitutionSignaturefd, Llc
Latest Disclosed Ownership4,823 shares
Latest Disclosed Value $ 289,669
Signaturefd, Llc reports 40.29% increase in ownership of DLB / Dolby Laboratories, Inc.

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 4,823 shares of Dolby Laboratories, Inc. (US:DLB) valued at $289,669 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 3,438 shares of Dolby Laboratories, Inc.. This represents a change in shares of 40.29% during the quarter. The current value of the position is $259,381 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-07 2026-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 4,823 1,385 40.29 290 31.36 0.0044
2026-01-20 2025-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 3,438 1,298 60.65 221 42.86 0.0034
2025-10-21 2025-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 2,140 -25 -1.15 155 -3.75 0.0024
2025-07-16 2025-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 2,165 -86 -3.82 161 -11.11 0.0027
2025-05-02 2025-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 2,251 43 1.95 181 4.65 0.0034
2025-02-10 2024-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 2,208 -107 -4.62 172 -2.82 0.0033
2024-10-21 2024-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 2,315 -852 -26.90 177 -29.20 0.0034
2024-07-29 2024-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 3,167 153 5.08 251 -0.79 0.0051
2024-05-03 2024-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 3,014 -372 -10.99 252 -13.40 0.0053
2024-02-01 2023-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 3,386 -324 -8.73 292 -1.02 0.0067
2023-11-03 2023-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 3,710 398 12.02 294 6.14 0.0077
2023-08-01 2023-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 3,312 185 5.92 277 3.75 0.0071
2023-04-28 2023-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 3,127 157 5.29 267 27.75 0.0073
2023-01-30 2022-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 2,970 440 17.39 210 26.67 0.0061
2022-11-08 2022-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 2,530 -826 -24.61 165 -31.25 0.0056
2022-08-10 2022-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 3,356 811 31.87 240 20.60 0.0082
2022-05-02 2022-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 2,545 477 23.07 199 1.02 0.0060
2022-01-25 2021-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 2,068 133 6.87 197 15.88 0.0061
2021-10-28 2021-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,935 -24 -1.23 170 -11.92 0.0059
2021-07-26 2021-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,959 -16 -0.81 193 -1.03 0.0077
2021-04-30 2021-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,975 47 2.44 195 4.28 0.0086
2021-02-11 2020-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,928 -18 -0.92 187 44.96 0.0088
2020-11-03 2020-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,946 55 2.91 129 3.20 0.0069
2020-07-30 2020-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,891 -104 -5.21 125 15.74 0.0076
2020-04-23 2020-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,995 94 4.94 108 -17.56 0.0093
2020-02-05 2019-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,901 285 17.64 131 25.96 0.0097
2019-10-16 2019-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,616 -196 -10.82 104 -11.11 0.0085
2019-07-31 2019-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,812 269 17.43 117 20.62 0.0101
2019-05-09 2019-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,543 -107 -6.48 97 -4.90 0.0083
2019-02-13 2018-12-31 13F DOLBY LABORATORIES COM 25659T107 1,650 -28 -1.67 102 -12.82 0.0095
2018-11-14 2018-09-30 13F DOLBY LABORATORIES COM 25659T107 1,678 -48 -2.78 117 10.38 0.0119
2018-08-14 2018-06-30 13F DOLBY LABORATORIES COM 25659T107 1,726 329 23.55 106 19.10 0.0118
2018-05-08 2018-03-31 13F DOLBY LABORATORIES COM 25659T107 1,397 1,397 89 0.0104
2017-02-14 2016-12-31 13F DOLBY LABORATORIES COM 25659T107 0 -320 -100.00 0 -100.00
2016-11-14 2016-09-30 13F DOLBY LABORATORIES COM 25659T107 320 122 61.62 17 88.89 0.0025
2016-07-29 2016-06-30 13F DOLBY LABORATORIES COM 25659T107 198 0 0.00 9 0.00 0.0013
2016-05-12 2016-03-31 13F DOLBY LABORATORIES COM 25659T107 198 93 88.57 9 125.00 0.0015
2016-01-22 2015-12-31 13F DOLBY LABORATORIES COM 25659T107 105 0 0.00 4 33.33 0.0008
2015-10-23 2015-09-30 13F DOLBY LABORATORIES COM 25659T107 105 72 218.18 3 200.00 0.0007
2015-07-15 2015-06-30 13F DOLBY LABORATORIES COM 25659T107 33 0 0.00 1 0.00 0.0002
2015-04-15 2015-03-31 13F DOLBY LABORATORIES COM 25659T107 33 33 0.00 1 0.0002
2015-02-13 2014-12-31 13F DOLBY LABORATORIES COM 25659T107 0 -430 -100.00 0 -100.00
2014-11-13 2014-09-30 13F DOLBY LABORATORIES COM 25659T107 430 430 18 0.0059
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.