FormFactor Ownership | Who Owns FormFactor?


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FormFactor Ownership Summary


FormFactor is owned by 77.31% institutional investors, 0.73% insiders, and 21.97% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 13.47% of FORM shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 6.08% of its assets in FormFactor shares.

FORM Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockFormFactor77.31%0.73%21.97%
SectorTechnology Stocks 36.06%15.18%48.76%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de10.48M13.47%$1.68B
Vanguard group10.22M13.21%$570.16M
Earnest partners4.88M6.30%$472.84M
State street2.58M3.32%$412.86M
Polar capital2.29M2.96%$222.33M
Alliancebernstein2.23M2.89%$124.47M
Geode capital management2.19M2.83%$212.23M
Primecap management co/ca/1.79M2.31%$173.48M
Sei investments1.68M2.17%$163.17M
Dimensional fund advisors lp1.41M1.83%$136.94M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Shannon river fund management968.16K5.68%$35.26M
Needham investment management603.50K2.99%$58.53M
Reinhart partners639.92K2.34%$102.35M
Kadensa capital147.93K2.00%$14.35M
Earnest partners4.88M1.95%$472.84M
Andar capital management hk27.00K1.94%$4.32M
Wt asset management534.49K1.69%$85.48M
Hanseatic management services14.17K1.67%$2.27M
Gf fund management776.00K1.49%$124.11M
Lisanti capital growth41.43K1.46%$6.63M

Top Buyers

HolderShares% AssetsChange
Polar capital2.29M0.79%2.29M
Shannon river fund management968.16K5.68%968.16K
Invesco1.24M0.02%905.44K
Alliancebernstein2.23M0.04%816.85K
Jane street group925.62K0.01%807.08K

Top Sellers

HolderShares% AssetsChange
Blackrock funding, inc. /de10.48M0.02%-1.76M
Hood river capital management---1.63M
Morgan stanley1.31M0.01%-962.64K
Earnest partners4.88M1.95%-899.83K
Royce & associates lp451.86K0.43%-706.03K

New Positions

HolderShares% AssetsChangeValue
Polar capital2.29M0.79%2.29M$222.33M
Shannon river fund management968.16K5.68%968.16K$35.26M
Norges bank563.84K0.00%563.84K$31.45M
Wt asset management534.49K1.69%534.49K$85.48M
Vanguard fiduciary trust530.78K0.01%530.78K$51.48M

Sold Out

HolderChange
Curio wealth-1.00
Steward partners investment advisory-1.00
Thurston, springer, miller, herd & titak-2.00
Cbiz investment advisory services-3.00
Claris advisors, llc / mo /-4.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 20263430.29%59,795,744-21.34%770.81%1981.54%104-3.70%
Dec 31, 2025103-63.73%15,476,595-79.37%200.21%52-60.90%33-68.57%
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%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
iShares Core S&P Small-Cap ETF4.75M6.08%-1.73K
Vanguard Morn Total Stk Mkt Idx Investor2.48M3.18%-5.85K
Vanguard Total Stock Mkt Idx Inv2.48M3.18%-5.85K
Vanguard US Total Market Shares ETF2.45M3.18%1.94K
iShares Russell 2000 ETF1.86M2.39%17.21K
Vanguard Small Cap Index1.79M2.29%-4.84K
EARNEST Partners Smid Cap Core Founders1.47M1.88%-107.02K
Polar Capital Global Tech Inc1.33M1.71%-
EARNEST Partners Smid Cap Core Fdrs1.19M1.52%-
Vanguard Information Technology ETF1.14M1.46%8.33K

Recent Insider Transactions


DateNameRoleActivityValue
Jul 15, 2026SLESSOR MIKE CEOSell$20.24K
Jul 15, 2026SLESSOR MIKE CEOSell$83.46K
Jul 15, 2026SLESSOR MIKE CEOSell$193.69K
Jul 15, 2026SLESSOR MIKE CEOSell$121.34K
Jul 15, 2026SLESSOR MIKE CEOSell$36.17K

Insider Transactions Trends


DateBuySell
2026 Q3-6
2026 Q2-31
2026 Q1-19
2025 Q4-6
2025 Q3-3

FORM Ownership FAQ


Who owns the most shares of FormFactor?

FormFactor’s largest shareholders are Blackrock funding, inc. /de (10.48M shares, 13.47%), Vanguard group (10.22M shares, 13.21%), and Earnest partners (4.88M shares, 6.30%). Together, they hold 32.99% 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 6.08% of its total shares outstanding invested in 4.75M FormFactor shares.

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