Dolby Laboratories, Inc.
US ˙ NYSE ˙ US25659T1079

SecurityDLB / Dolby Laboratories, Inc.
InstitutionBoston Partners
Latest Disclosed Ownership352,388 shares
Latest Disclosed Value $ 21,248,621
Boston Partners ownership in DLB / Dolby Laboratories, Inc.

On May 11, 2026 - Boston Partners filed a 13F-HR form disclosing ownership of 352,388 shares of Dolby Laboratories, Inc. (US:DLB) valued at $21,164,423 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 8, 2023 disclosing 0 shares of Dolby Laboratories, Inc.. The current value of the position is $19,342,577 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)
2026-05-11 2026-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 352,388 352,388 21,249 0.0095
2023-02-08 2022-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 0 -7,638 -100.00 0 -100.00
2022-11-09 2022-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 7,638 172 2.30 498 -6.74 0.0007
2022-08-10 2022-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 7,466 0 0.00 534 -8.56 0.0007
2022-05-10 2022-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 7,466 217 2.99 584 -15.36 0.0007
2022-02-04 2021-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 7,249 0 0.00 690 8.15 0.0008
2021-11-05 2021-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 7,249 -1,044 -12.59 638 -21.72 0.0008
2021-08-12 2021-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 8,293 -174 -2.06 815 -2.51 0.0010
2021-05-10 2021-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 8,467 -710 -7.74 836 -6.17 0.0011
2021-02-10 2020-12-31 13F/A-1 DOLBY LABORATORIES COM CL A 25659T107 9,177 -4,816 -34.42 891 -3.88 0.0014
2021-02-04 2020-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 9,177 -4,816 891 534.5470
2020-11-13 2020-09-30 13F/A-1 DOLBY LABORATORIES COM CL A 25659T107 13,993 -6,012 -30.05 927 -29.67 0.0017
2020-11-09 2020-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 20,005 0 1,318 967.5690
2020-08-12 2020-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 20,005 -9,457 -32.10 1,318 -17.47 0.0024
2020-05-13 2020-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 29,462 -2,315 -7.29 1,597 -26.94 0.0032
2020-02-06 2019-12-31 13F/A-1 DOLBY LABORATORIES COM CL A 25659T107 31,777 -4,107 -11.45 2,186 -5.78 0.0029
2020-02-05 2019-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 31,777 -4,107 2,186 1,229.0330
2019-11-20 2019-09-30 13F/A-1 DOLBY LABORATORIES COM CL A 25659T107 35,884 1,888 5.55 2,320 5.65 0.0031
2019-11-08 2019-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 33,996 0 2,196 0.0029
2019-08-26 2019-06-30 13F/A-1 DOLBY LABORATORIES COM CL A 25659T107 33,996 -6,938 -16.95 2,196 -14.82 0.0029
2019-08-09 2019-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 33,996 -6,938 2,196
2019-05-13 2019-03-31 13F/A-1 DOLBY LABORATORIES COM CL A 25659T107 40,934 530 1.31 2,578 3.16 0.0034
2019-05-03 2019-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 40,934 530 2,578
2019-02-07 2018-12-31 13F DOLBY LABORATORIES COM 25659T107 40,404 -20,552 -33.72 2,499 -41.41 0.0036
2018-11-14 2018-09-30 13F DOLBY LABORATORIES COM 25659T107 60,956 -1,710 -2.73 4,265 10.32 0.0050
2018-08-03 2018-06-30 13F DOLBY LABORATORIES COM 25659T107 62,666 -11,489 -15.49 3,866 -17.97 0.0046
2018-05-04 2018-03-31 13F DOLBY LABORATORIES COM 25659T107 74,155 -8,464 -10.24 4,713 -7.99 0.0057
2018-02-14 2017-12-31 13F/A-1 DOLBY LABORATORIES COM 25659T107 82,619 -5,513 -6.26 5,122 1.05 0.0060
2018-02-01 2017-12-31 13F DOLBY LABORATORIES COM 25659T107 82,619 -5,513 5,122
2017-11-02 2017-09-30 13F DOLBY LABORATORIES COM 25659T107 88,132 -2,702 -2.97 5,069 13.99 0.0063
2017-08-02 2017-06-30 13F DOLBY LABORATORIES COM 25659T107 90,834 0 0.00 4,447 -6.60 0.0057
2017-05-03 2017-03-31 13F DOLBY LABORATORIES COM 25659T107 90,834 0 0.00 4,761 15.98 0.0061
2017-02-06 2016-12-31 13F DOLBY LABORATORIES COM 25659T107 90,834 -33,937 -27.20 4,105 -39.40 0.0054
2016-11-09 2016-09-30 13F DOLBY LABORATORIES COM 25659T107 124,771 -20,566 -14.15 6,774 -2.59 0.0095
2016-08-05 2016-06-30 13F DOLBY LABORATORIES COM 25659T107 145,337 -122 -0.08 6,954 10.00 0.0100
2016-05-12 2016-03-31 13F DOLBY LABORATORIES COM 25659T107 145,459 26,557 22.34 6,322 58.01 0.0093
2016-02-08 2015-12-31 13F DOLBY LABORATORIES COM 25659T107 118,902 31,167 35.52 4,001 39.90 0.0057
2015-11-10 2015-09-30 13F DOLBY LABORATORIES COM 25659T107 87,735 -12,358 -12.35 2,860 -28.00 0.0044
2015-08-10 2015-06-30 13F DOLBY LABORATORIES COM 25659T107 100,093 100,093 3,972 0.0057
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.