DOSSIER · 13F Holders · Q1 2026
FORM

FORMFACTOR INC

426 institutions still hold FORMFACTOR INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 346375108·426 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$5.0B
visible holders
Holders
426
filers reporting
Concentration
23.78%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

FormFactor's Q2 2026 tracked ownership is almost entirely split between Versant Capital Management and MassMutual Private Wealth & Trust: Versant holds about .7K, roughly 68% of the .1K snapshot, while MassMutual holds about 31%. The underlying action is more cautious than the rising dollar values imply—Versant cut from 1,538 to 1,424 shares and MassMutual from 744 to 645, while Noble Wealth entered with only 7 shares.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$1.2B12.2M0.02%Q1 2026
02
Vanguard Portfolio Management
CIK 0002100121· Index
$570M5.9M0.03%Q1 2026
03
EARNEST PARTNERS LLC
CIK 0001102578
$473M4.9M1.95%Q1 2026
04
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$337M3.5M0.01%Q1 2026
05
STATE STREET CORP
CIK 0000093751
$284M2.9M0.01%Q1 2026
06
BANK OF AMERICA CORP /DE/
CIK 0000070858
$241M2.5M0.02%Q1 2026
07
Polar Capital Holdings Plc
CIK 0001837309
$222M2.3M0.79%Q1 2026
08
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$212M2.2M0.01%Q1 2026
09
PRIMECAP MANAGEMENT CO/CA/
CIK 0000763212
$173M1.8M0.14%Q1 2026
10
SEI INVESTMENTS CO
CIK 0000350894
$163M1.7M0.15%Q1 2026
11
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$137M1.4M0.03%Q1 2026
12
AMERIPRISE FINANCIAL INC
CIK 0000820027
$136M1.4M0.03%Q1 2026
13
MORGAN STANLEY
CIK 0000895421
$127M1.3M0.01%Q1 2026
14
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$124M2.2M0.04%Q1 2026
15
Invesco Ltd.
CIK 0000914208
$120M1.2M0.01%Q1 2026
16
FULLER & THALER ASSET MANAGEMENT, INC.
CIK 0001082327
$110M1.1M0.37%Q1 2026
17
REINHART PARTNERS, LLC.
CIK 0001080298
$102M640K2.34%Q2 2026
18
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$98M1.0M0.01%Q1 2026
19
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$92M948K0.01%Q1 2026
20
GOLDMAN SACHS GROUP INC
CIK 0000886982
$85M874K0.01%Q1 2026
Page 1 of 22
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Insiders at FORMFACTOR INC
Slessor MikeSt Dennis ThomasRhodes SheriMckinnis Aric BrendanObregon-Jimenez RebecaWhite Brian CTitinger JorgeSteven-Waiss Kelley