FormFactor Ownership | Who Owns FormFactor?


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FormFactor Ownership Summary


FormFactor is owned by 29.27% institutional investors, 0.97% insiders, and 69.76% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 14.55% of FORM shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 5.95% of its assets in FormFactor shares.

FORM Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockFormFactor29.27%0.97%69.76%
SectorTechnology Stocks 50.72%12.57%36.71%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de11.24M14.55%$409.22M
Vanguard group10.30M13.34%$375.12M
Earnest partners5.95M7.70%$216.59M
State street2.92M3.78%$106.26M
Reinhart partners2.40M3.11%$87.59M
Alliancebernstein2.40M3.10%$87.30M
Primecap management co/ca/2.32M3.01%$84.66M
Dimensional fund advisors lp2.17M2.81%$79.06M
Massachusetts financial services co /ma/2.13M2.76%$77.61M
Geode capital management1.88M2.43%$68.43M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Shannon river fund management968.16K5.68%$35.26M
Reinhart partners2.40M2.85%$87.59M
Needham investment management740.00K1.88%$26.95M
Montanaro asset management125.00K1.14%$4.55B
Earnest partners5.95M0.94%$216.59M
Herald investment management118.30K0.57%$4.31M
Royce & associates lp1.47M0.53%$53.49M
Polymer capital management (us)122.00K0.47%$4.44M
Channing capital management464.28K0.45%$16.91M
Sora investors113.54K0.38%$4.14M

Top Buyers

HolderShares% AssetsChange
Westfield capital management co lp1.03M0.16%1.03M
Shannon river fund management968.16K5.68%968.16K
Price t rowe associates inc /md/655.75K0.00%564.93K
Reinhart partners2.40M2.85%500.16K
Channing capital management464.28K0.45%464.28K

Top Sellers

HolderShares% AssetsChange
Hood river capital management---1.63M
Wellington management group llp---1.16M
Silvercrest asset management group17.91K0.00%-890.49K
Bank of new york mellon1.43M0.01%-669.07K
Timessquare capital management---583.31K

New Positions

HolderShares% AssetsChangeValue
Shannon river fund management968.16K5.68%968.16K$35.26M
Norges bank282.88K0.00%282.88K$12.45M
Polymer capital management (us)122.00K0.47%122.00K$4.44M
Herald investment management118.30K0.57%118.30K$4.31M
Point72 asset management115.12K0.01%115.12K$4.19M

Sold Out

HolderChange
Thurston, springer, miller, herd & titak-2.00
Cbiz investment advisory services-3.00
Claris advisors, llc / mo /-4.00
Global financial private client-5.00
Southstate-5.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 2025110-63.93%22,602,276-70.00%290.31%39-75.78%49-51.49%
Jun 30, 20253006.76%75,260,965-0.29%971.02%16010.34%976.59%
Mar 31, 202511-96.45%1,938,858-97.45%20.03%6-96.32%4-96.00%
Dec 31, 2024306-4.67%75,988,9612.98%981.08%160-11.11%100-0.99%
Sep 30, 20243201.59%73,788,264-1.74%951.01%17911.18%101-12.93%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
iShares Core S&P Small-Cap ETF4.58M5.95%-
Vanguard US Total Market Shares ETF2.45M3.18%1.94K
Vanguard Total Stock Mkt Idx Inv2.44M3.16%-52.09K
Vanguard Small Cap Index1.87M2.43%-9.76K
iShares Russell 2000 ETF1.87M2.43%-
Vanguard Information Technology ETF1.84M2.38%18.72K
EARNEST Partners Smid Cap Core Founders1.61M2.08%-22.77K
Harbor Small Cap Value Instl1.26M1.64%-64.30K
Vanguard Capital Opportunity Inv1.24M1.61%-187.60K
Vanguard Small Cap Growth Index Inv1.06M1.37%-956.00

Recent Insider Transactions


DateNameRoleActivityValue
Dec 02, 2025STEVEN-WAISS KELLEY-Sell$151.11K
Nov 19, 2025SLESSOR MIKE CEOSell$235.29K
Nov 19, 2025SLESSOR MIKE CEOSell$185.40K
Nov 17, 2025St Dennis Thomas-Sell$99.69K
Sep 12, 2025STEVEN-WAISS KELLEY-Sell$109.53K

Insider Transactions Trends


DateBuySell
2025 Q4-4
2025 Q3-3
2025 Q2-4
2025 Q1-6
2024 Q4-6

FORM Ownership FAQ


Who owns the most shares of FormFactor?

FormFactor’s largest shareholders are Blackrock funding, inc. /de (11.24M shares, 14.55%), Vanguard group (10.3M shares, 13.34%), and Earnest partners (5.95M shares, 7.70%). Together, they hold 35.59% of FormFactor’s total shares outstanding.

Does Blackrock own FormFactor?

BlackRock is not among the top 10 institutional shareholders of FormFactor.

Who is FormFactor’s biggest shareholder by percentage of total assets invested?

Shannon river fund management is FormFactor’s biggest shareholder by percentage of total assets invested, with 5.68% of its assets in 968.16K FormFactor shares, valued at 35.26M$.

Who is the top mutual fund holder of FormFactor shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of FormFactor shares, with 5.95% of its total shares outstanding invested in 4.58M FormFactor shares.

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