Dolby Laboratories, Inc.
US ˙ NYSE ˙ US25659T1079

SecurityDLB / Dolby Laboratories, Inc.
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership1,167,121 shares
Latest Disclosed Value $ 70,097,287
Mackenzie Financial Corp reports 0.27% increase in ownership of DLB / Dolby Laboratories, Inc.

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 1,167,121 shares of Dolby Laboratories, Inc. (US:DLB) valued at $70,097,287 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 1,164,010 shares of Dolby Laboratories, Inc.. This represents a change in shares of 0.27% during the quarter. The current value of the position is $63,071,219 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 1,167,121 3,111 0.27 70,097 -7.74 0.0841
2026-02-18 2025-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,164,010 14,566 1.27 75,976 -8.67 0.0900
2025-11-13 2025-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,149,444 -12,635 -1.09 83,185 -3.60 0.1008
2025-08-13 2025-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,162,079 14,279 1.24 86,296 -6.38 0.1118
2025-05-07 2025-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,147,800 174,373 17.91 92,180 21.25 0.1311
2025-05-02 2024-12-31 13F/A-2 DOLBY LABORATORIES COM CL A 25659T107 973,427 -12,326 -1.25 76,025 0.78 0.1036
2025-02-20 2024-12-31 13F/A-1 DOLBY LABORATORIES COM CL A 25659T107 973,427 -12,326 76,025 0.0988
2025-02-14 2024-12-31 13F Dolby Laboratories Common Stock 25659T107 973,427 -12,326 65,706 0.0943
2024-11-13 2024-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 985,753 -24,477 -2.42 75,440 -5.75 0.1050
2024-08-14 2024-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,010,230 33,848 3.47 80,041 -2.14 0.1189
2024-05-10 2024-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 976,382 -297,472 -23.35 81,792 -25.50 0.1179
2024-01-30 2023-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,273,854 -203,751 -13.79 109,781 -6.13 0.1656
2023-10-25 2023-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,477,605 -35,222 -2.33 116,952 -7.60 0.1966
2023-08-03 2023-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,512,827 14,958 1.00 126,578 -1.07 0.1920
2023-04-24 2023-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,497,869 7,286 0.49 127,948 21.69 0.1976
2023-02-14 2022-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,490,583 42,418 2.93 105,146 11.44 0.1756
2022-10-07 2022-09-30 13F Dolby Laboratories Common Stock 25659T107 1,448,165 7,378 0.51 94,348 -8.49 0.1623
2022-08-10 2022-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,440,787 33,026 2.35 103,103 -6.37 0.1651
2022-05-13 2022-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,407,761 -248,789 -15.02 110,115 -30.19 0.1476
2022-02-14 2021-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,656,550 219,914 15.31 157,737 24.77 0.2125
2021-11-08 2021-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,436,636 34,694 2.47 126,424 -8.25 0.1793
2021-08-11 2021-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,401,942 -203,275 -12.66 137,797 -13.04 0.1916
2021-05-14 2021-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,605,217 -539,748 -25.16 158,467 -23.94 0.2415
2021-02-10 2020-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 2,144,965 -117,768 -5.20 208,340 38.92 0.4499
2020-11-13 2020-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 2,262,733 41,200 1.85 149,974 2.49 0.3725
2020-08-13 2020-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 2,221,533 162,352 7.88 146,332 31.09 0.3916
2020-05-14 2020-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 2,059,181 199,439 10.72 111,628 -12.76 0.3589
2020-02-13 2019-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,859,742 99,091 5.63 127,950 12.43 0.3147
2019-11-14 2019-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,760,651 116,116 7.06 113,808 7.13 0.2991
2019-08-23 2019-06-30 13F/A-1 DOLBY LABORATORIES COM CL A 25659T107 1,644,535 574,300 53.66 106,237 57.64 0.2741
2019-08-14 2019-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,644,535 574,300 106,237
2019-05-15 2019-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,070,235 252,332 30.85 67,393 33.24 0.1626
2019-02-06 2018-12-31 13F DOLBY LABORATORIES COM 25659T107 817,903 108,401 15.28 50,579 1.88 0.1330
2018-11-15 2018-09-30 13F DOLBY LABORATORIES COM 25659T107 709,502 0 0.00 49,644 13.42 0.1208
2018-08-13 2018-06-30 13F DOLBY LABORATORIES COM 25659T107 709,502 580,102 448.30 43,769 432.15 0.1117
2018-05-14 2018-03-31 13F/A-1 DOLBY LABORATORIES COM 25659T107 129,400 129,400 8,225 0.0210
2018-05-14 2018-03-31 13F DOLBY LABORATORIES COM 25659T107 129,400 8,225
2017-11-13 2017-09-30 13F DOLBY LABORATORIES COM 25659T107 0 -34,450 -100.00 0 -100.00
2017-08-14 2017-06-30 13F DOLBY LABORATORIES COM 25659T107 34,450 -133,300 -79.46 1,687 -80.81 0.0094
2017-05-25 2017-03-31 13F/A-1 DOLBY LABORATORIES COM 25659T107 167,750 29,300 21.16 8,792 40.51 0.0514
2017-05-12 2017-03-31 13F DOLBY LABORATORIES COM 25659T107 167,750 8,792
2017-02-14 2016-12-31 13F DOLBY LABORATORIES COM 25659T107 138,450 138,450 6,257 0.0375
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.