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 319,593 shares, down 99,223 (23.7%) from the prior quarter.

Reported value -28.6%; share count -23.7% vs. the prior quarter.

Reduced
% of reported 13F value 0.2% This manager · Q1 2026
Shares 319,593 Quarter-end amount reported
Reported value $19,194,755 Fair value at quarter end
Consecutive quarters held 6 Through Q1 2026

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

467 managers reported DOLBY LABORATORIES INC for Q1 2026.

Manager Activity Shares Change % of reported 13F Reported value Tenure
BlackRock Inc Added 6,538,336 +437,589 < 0.01% $392,692,443 7 qtrs
MORGAN STANLEY Reduced 5,142,168 -1,029,142 0.02% $308,838,741 52 qtrs
VANGUARD PORTFOLIO MANAGEMENT LLC New 4,970,824 +4,970,824 0.02% $298,547,689 1 qtr
THE BANK OF NEW YORK MELLON CORPORATION Reduced 4,499,820 -732,526 0.05% $270,259,193 52 qtrs
VANGUARD CAPITAL MANAGEMENT LLC New 2,726,375 +2,726,375 < 0.01% $163,746,083 1 qtr
STATE STREET CORPORATION Added 2,290,579 +48,497 < 0.01% $137,572,175 52 qtrs
FIRST TRUST ADVISORS LP Added 2,254,933 +374,405 0.1% $135,431,169 30 qtrs
GEODE CAPITAL MANAGEMENT LLC Reduced 1,765,109 -120,137 < 0.01% $106,029,501 52 qtrs
ACADIAN ASSET MANAGEMENT LLC Added 1,571,374 +397,231 0.13% $94,347,000 27 qtrs
SNYDER CAPITAL MANAGEMENT L P Reduced 1,361,448 -65,645 1.59% $81,768,567 15 qtrs
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Filing details and methodology As reported
Report period
March 31, 2026
Filed
May 15, 2026
Filing type
13F-HR
Position type
COM CL A

Voting authority reported

Sole
154,216
Shared
0
None
165,377

“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.