Form 13-F position report

* DOLBY LABORATORIES INC

Reported by FRONTIER CAPITAL MANAGEMENT CO LLC

Company profile Manager portfolio Source filing
DLB CUSIP 25659T107 Manager CIK 0000351173
Latest reported change

First reported at 311,428 shares this quarter.

New
% of reported 13F value 0.23% This manager · Q4 2024
Shares 311,428 Quarter-end amount reported
Reported value $24,322,519 Fair value at quarter end
Consecutive quarters held 1 Through Q4 2024

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Manager history

Quarterly position history

How this manager's reported quarter-end position changed over time.

7 quarters
Quarter Activity Shares Change % of reported 13F Reported value Filed
Q2 2026 Reduced 100,203 -219,390 (-68.6%) 0.05% $5,268,689 2026-08-14
Q1 2026 Reduced 319,593 -99,223 (-23.7%) 0.2% $19,194,755 2026-05-15
Q4 2025 Reduced 418,816 -308,050 (-42.4%) 0.29% $26,896,343 2026-02-17
Q3 2025 Reduced 726,866 -510,801 (-41.3%) 0.47% $52,603,302 2025-11-14
Q2 2025 Added 1,237,667 +28,243 (2.3%) 0.85% $91,909,159 2025-08-14
Q1 2025 Added 1,209,424 +897,996 (288.3%) 1.06% $97,128,860 2025-05-15
Q4 2024 New 311,428 +311,428 (0.0%) 0.23% $24,322,519 2025-02-14
Institutional context

Who else reported the position

466 managers reported * DOLBY LABORATORIES INC for Q4 2024.

Manager Activity Shares Change % of reported 13F Reported value Tenure
VANGUARD GROUP INC Added 7,033,612 +68,771 < 0.01% $549,325,097 47 qtrs
MORGAN STANLEY Reduced 7,004,764 -111,855 0.04% $547,072,391 47 qtrs
BlackRock Inc Added 5,852,896 +88,821 < 0.01% $457,111,188 2 qtrs
THE BANK OF NEW YORK MELLON CORPORATION Added 4,826,477 +1,887,518 0.07% $376,947,821 47 qtrs
STATE STREET CORPORATION Added 2,021,386 +89,800 < 0.01% $157,870,247 47 qtrs
DISCIPLINED GROWTH INVESTORS INC MN Added 1,528,838 +62,626 2.27% $119,402,248 47 qtrs
GEODE CAPITAL MANAGEMENT LLC Reduced 1,440,351 -98,232 < 0.01% $112,515,883 47 qtrs
Clearbridge Investments LLC Reduced 1,165,919 -510,611 0.07% $91,058,250 47 qtrs
ACADIAN ASSET MANAGEMENT LLC Added 1,133,868 +18,255 0.26% $88,535,000 22 qtrs
SCHRODER INVESTMENT MANAGEMENT GROUP Reduced 1,103,697 -74,257 0.08% $86,154,588 30 qtrs
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Filing details and methodology As reported
Report period
December 31, 2024
Filed
February 14, 2025
Filing type
13F-HR
Position type
COM CL A

Voting authority reported

Sole
79,401
Shared
0
None
232,027

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.