杜比實驗室公司
US ˙ NYSE ˙ US25659T1079

SecurityDLB / Dolby Laboratories, Inc.
InstitutionFifth Third Bancorp
Latest Disclosed Ownership48,521 shares
Latest Disclosed Value $ 2,914,212
Fifth Third Bancorp reports 6,404.16% increase in ownership of DLB / Dolby Laboratories, Inc.

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 48,521 shares of Dolby Laboratories, Inc. (US:DLB) valued at $2,914,171 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 746 shares of Dolby Laboratories, Inc.. This represents a change in shares of 6,404.16% during the quarter. The current value of the position is $2,609,459 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)
2026-05-01 2026-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 48,521 47,775 6,404.16 2,914 6,100.00 0.0053
2026-02-02 2025-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 746 192 34.66 48 17.50 0.0002
2025-11-07 2025-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 554 -61 -9.92 40 -11.11 0.0001
2025-07-15 2025-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 615 -50 -7.52 46 -15.09 0.0002
2025-04-15 2025-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 665 305 84.72 53 89.29 0.0002
2025-01-21 2024-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 360 163 82.74 28 86.67 0.0001
2024-10-17 2024-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 197 -281 -58.79 15 -59.46 0.0001
2024-07-22 2024-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 478 -43 -8.25 38 -13.95 0.0001
2024-04-23 2024-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 521 -89 -14.59 44 -17.31 0.0002
2024-01-19 2023-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 610 164 36.77 53 48.57 0.0002
2023-10-31 2023-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 446 284 175.31 35 169.23 0.0002
2023-07-26 2023-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 162 29 21.80 14 18.18 0.0001
2023-04-24 2023-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 133 0 0.00 11 22.22 0.0001
2023-01-25 2022-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 133 -5 -3.62 9 0.00 0.0000
2022-10-25 2022-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 138 -1,030 -88.18 9 -89.29 0.0000
2022-08-04 2022-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,168 98 9.16 84 0.00 0.0004
2022-04-19 2022-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,070 32 3.08 84 -15.15 0.0003
2022-02-01 2021-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,038 0 0.00 99 8.79 0.0004
2021-10-15 2021-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,038 38 3.80 91 -7.14 0.0004
2021-08-06 2021-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,000 0 0.00 98 -1.01 0.0004
2021-05-07 2021-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,000 -161 -13.87 99 -12.39 0.0005
2021-02-16 2020-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,161 -47 -3.89 113 41.25 0.0006
2020-11-09 2020-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,208 47 4.05 80 5.26 0.0004
2020-08-05 2020-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 1,161 -1,800 -60.79 76 -52.80 0.0005
2020-05-05 2020-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 2,961 -90 -2.95 161 -23.33 0.0011
2020-02-14 2019-12-31 13F DOLBY LABORATORIES COM CL A 25659T107 3,051 0 0.00 210 6.60 0.0012
2019-11-14 2019-09-30 13F DOLBY LABORATORIES COM CL A 25659T107 3,051 -148 -4.63 197 -4.83 0.0012
2019-08-07 2019-06-30 13F DOLBY LABORATORIES COM CL A 25659T107 3,199 1,399 77.72 207 83.19 0.0013
2019-05-14 2019-03-31 13F DOLBY LABORATORIES COM CL A 25659T107 1,800 0 0.00 113 1.80 0.0007
2019-02-14 2018-12-31 13F DOLBY LABORATORIES COM 25659T107 1,800 -35 -1.91 111 -13.28 0.0008
2018-11-14 2018-09-30 13F DOLBY LABORATORIES COM 25659T107 1,835 13 0.71 128 14.29 0.0008
2018-08-14 2018-06-30 13F DOLBY LABORATORIES COM 25659T107 1,822 22 1.22 112 -1.75 0.0008
2018-05-15 2018-03-31 13F DOLBY LABORATORIES COM 25659T107 1,800 1,800 114 0.0008
2016-05-13 2016-03-31 13F DOLBY LABORATORIES COM 25659T107 0 -52 -100.00 0 -100.00
2016-02-16 2015-12-31 13F DOLBY LABORATORIES COM 25659T107 52 -63 -54.78 2 -50.00 0.0000
2015-11-13 2015-09-30 13F DOLBY LABORATORIES COM 25659T107 115 -221 -65.77 4 -69.23 0.0000
2015-08-14 2015-06-30 13F DOLBY LABORATORIES COM 25659T107 336 0 0.00 13 0.00 0.0001
2015-05-14 2015-03-31 13F DOLBY LABORATORIES COM 25659T107 336 318 1,766.67 13 1,200.00 0.0001
2015-02-13 2014-12-31 13F DOLBY LABORATORIES COM 25659T107 18 -221 -92.47 1 -90.00 0.0000
2014-11-17 2014-09-30 13F DOLBY LABORATORIES COM 25659T107 239 209 696.67 10 900.00 0.0001
2014-08-14 2014-06-30 13F DOLBY LABORATORIES COM 25659T107 30 30 -55.22 1 -50.00 0.0000
2014-02-14 2013-12-31 13F DOLBY LABORATORIES COM 25659T107 0 -67 -100.00 0 -100.00
2013-11-14 2013-09-30 13F DOLBY LABORATORIES COM 25659T107 67 67 2 0.0000
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.