돌비 연구소, Inc.
US ˙ NYSE ˙ US25659T1079

SecurityDLB / Dolby Laboratories, Inc.
InstitutionAviva Plc
Latest Disclosed Ownership7,077 shares
Latest Disclosed Value $ 425,045
Aviva Plc reports 3.87% decrease in ownership of DLB / Dolby Laboratories, Inc.

On May 14, 2026 - Aviva Plc filed a 13F-HR form disclosing ownership of 7,077 shares of Dolby Laboratories, Inc. (US:DLB) valued at $425,045 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 7,362 shares of Dolby Laboratories, Inc.. This represents a change in shares of -3.87% during the quarter. The current value of the position is $382,441 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)
2026-05-14 2026-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 7,077 -285 -3.87 425 -9.96 0.0007
2026-02-12 2025-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 7,362 681 10.19 473 -2.28 0.0008
2025-11-13 2025-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 6,681 403 6.42 484 3.65 0.0009
2025-08-07 2025-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 6,278 -1,226 -16.34 466 -22.59 0.0010
2025-05-15 2025-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 7,504 -476 -5.96 603 -3.37 0.0015
2025-02-13 2024-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 7,980 -1,102 -12.13 623 -10.36 0.0016
2024-11-14 2024-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 9,082 1,323 17.05 695 13.19 0.0018
2024-08-02 2024-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 7,759 126 1.65 615 -3.91 0.0017
2024-05-14 2024-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 7,633 459 6.40 639 3.40 0.0021
2024-02-09 2023-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 7,174 -64 -0.88 618 7.85 0.0022
2023-11-13 2023-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 7,238 -9,671 -57.19 574 -59.48 0.0024
2023-08-10 2023-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 16,909 -566 -3.24 1,415 -5.23 0.0058
2023-05-12 2023-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 17,475 3,332 23.56 1,493 49.65 0.0068
2023-02-14 2022-12-31 13F/A-2 DOLBY LABORATORIES COM CL A 25659T107 14,143 -7,740 -35.37 998 -30.08 0.0049
2023-02-10 2022-12-31 13F/A-1 DOLBY LABORATORIES COM CL A 25659T107 14,143 -7,740 32,194 0.1535
2023-02-09 2022-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 14,143 -7,740 1 0.0048
2022-11-14 2022-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 21,883 -4,834 -18.09 1,426 -25.42 0.0082
2022-08-04 2022-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 26,717 -2,891 -9.76 1,912 -17.44 0.0102
2022-05-13 2022-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 29,608 937 3.27 2,316 -15.16 0.0116
2022-02-10 2021-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 28,671 10,701 59.55 2,730 72.68 0.0114
2021-11-12 2021-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 17,970 17,970 1,581 0.0071
2021-08-10 2021-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 0 -12,383 -100.00 0 -100.00
2021-05-13 2021-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 12,383 -6,729 -35.21 1,222 -34.16 0.0060
2021-02-10 2020-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 19,112 -15,498 -44.78 1,856 -19.09 0.0097
2020-11-12 2020-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 34,610 68 0.20 2,294 0.84 0.0135
2020-08-13 2020-06-30 13F/A-1 DOLBY LABORATORIES COM CL A 25659T107 34,542 -33,088 -48.93 2,275 -37.94 0.0142
2020-08-13 2020-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 34,542 -33,088 2,275 6,887.4007
2020-05-14 2020-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 67,630 40,575 149.97 3,666 96.99 0.0269
2020-02-10 2019-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 27,055 27,055 1,861 0.0113
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.