Dolby Laboratories, Inc.
US ˙ NYSE ˙ US25659T1079

SecurityDLB / Dolby Laboratories, Inc.
InstitutionSepio Capital, LP
Latest Disclosed Ownership13,857 shares
Latest Disclosed Value $ 832,251
Sepio Capital, LP reports 81.04% increase in ownership of DLB / Dolby Laboratories, Inc.

On May 13, 2026 - Sepio Capital, LP filed a 13F-HR form disclosing ownership of 13,857 shares of Dolby Laboratories, Inc. (US:DLB) valued at $832,251 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 7,654 shares of Dolby Laboratories, Inc.. This represents a change in shares of 81.04% during the quarter. The current value of the position is $745,229 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)
2026-05-13 2026-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 13,857 6,203 81.04 832 69.45 0.0452
2026-02-12 2025-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 7,654 -9,464 -55.29 492 -60.34 0.0269
2025-11-13 2025-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 17,118 0 0.00 1,239 -2.60 0.0733
2025-08-13 2025-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 17,118 -1,070 -5.88 1,271 -12.95 0.0905
2025-05-15 2025-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 18,188 7,403 68.64 1,461 73.40 0.1156
2025-02-13 2024-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 10,785 -6,636 -38.09 842 -36.83 0.0674
2024-11-14 2024-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 17,421 -9 -0.05 1,333 -3.48 0.1038
2024-08-15 2024-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 17,430 -190 -1.08 1,381 -6.44 0.1266
2024-05-15 2024-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 17,620 3,403 23.94 1,476 20.49 0.1266
2024-02-09 2023-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 14,217 -491 -3.34 1,225 5.15 0.1029
2023-11-08 2023-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 14,708 0 0.00 1,166 -5.28 0.1007
2023-08-08 2023-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 14,708 -454 -2.99 1,231 -5.02 0.0999
2023-05-10 2023-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 15,162 3,619 31.35 1,295 59.09 0.1194
2023-02-03 2022-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 11,543 -4,922 -29.89 814 -24.14 0.0704
2022-10-28 2022-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 16,465 -1,528 -8.49 1,073 -16.69 0.1065
2022-07-26 2022-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 17,993 -444 -2.41 1,288 -10.68 0.1294
2022-05-09 2022-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 18,437 -2,574 -12.25 1,442 -27.94 0.1265
2022-01-25 2021-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 21,011 1,820 9.48 2,001 18.47 0.1478
2021-11-03 2021-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 19,191 -648 -3.27 1,689 -13.38 0.1392
2021-07-29 2021-06-30 13F/A-1 DOLBY LABORATORIES COM CL A 25659T107 19,839 4,065 25.77 1,950 25.24 0.1606
2021-07-26 2021-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 19,839 4,065 1,950 0.1681
2021-05-10 2021-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 15,774 6,627 72.45 1,557 75.34 0.1434
2021-02-10 2020-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 9,147 203 2.27 888 49.75 0.0766
2020-11-12 2020-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 8,944 0 0.00 593 0.68 0.0644
2020-08-04 2020-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 8,944 1,890 26.79 589 54.19 0.0692
2020-04-29 2020-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 7,054 7,054 382 0.0506
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.