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

Reported 418,816 shares, down 308,050 (42.4%) from the prior quarter.

Reported value -48.9%; share count -42.4% vs. the prior quarter.

Reduced
% of reported 13F value 0.29% This manager · Q4 2025
Shares 418,816 Quarter-end amount reported
Reported value $26,896,343 Fair value at quarter end
Consecutive quarters held 5 Through Q4 2025

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

463 managers reported DOLBY LABORATORIES INC for Q4 2025.

Manager Activity Shares Change % of reported 13F Reported value Tenure
VANGUARD GROUP INC Reduced 7,720,542 -36,382 < 0.01% $495,813,208 51 qtrs
MORGAN STANLEY Reduced 6,171,310 -679,901 0.02% $396,321,619 51 qtrs
BlackRock Inc Added 6,100,747 +144,720 < 0.01% $391,789,940 6 qtrs
THE BANK OF NEW YORK MELLON CORPORATION Reduced 5,232,346 -317,136 0.06% $336,021,225 51 qtrs
STATE STREET CORPORATION Added 2,242,082 +7,678 < 0.01% $143,986,506 51 qtrs
GEODE CAPITAL MANAGEMENT LLC Added 1,885,246 +254,250 < 0.01% $122,749,331 51 qtrs
FIRST TRUST ADVISORS LP Added 1,880,528 +361,871 0.09% $120,767,553 29 qtrs
SNYDER CAPITAL MANAGEMENT L P Added 1,427,093 +279,743 1.71% $91,647,912 14 qtrs
DISCIPLINED GROWTH INVESTORS INC MN Reduced 1,342,492 -31,070 1.65% $86,214,836 51 qtrs
DIMENSIONAL FUND ADVISORS LP Added 1,237,572 +87,645 0.02% $79,482,286 51 qtrs
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Filing details and methodology As reported
Report period
December 31, 2025
Filed
February 17, 2026
Filing type
13F-HR
Position type
COM CL A

Voting authority reported

Sole
264,879
Shared
0
None
153,937

“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.