FormFactor
FORM • NASDAQ
FormFactor is a semiconductors company in the technology sector on NASDAQ, led by Michael D. Slessor, with a market cap of $4.3B. As of Q3 2025, 97% of shares are held by 270 institutional investors, with BlackRock, Inc. as the largest holder at 14.57%.
CEOMichael D. Slessor
Market Cap$4.3B
Semiconductors
Technology
Employees2.1K
Websiteformfactor.com
Country
United States of America
Overview
Overview of institutional ownership in FORM as of Q3 2025 with a market cap of $2.8B
All Institutions
- Institutions
- 270
- Value Held
- $2.7B
- Shares Held
- 75.0M
- Avg Position
- $10.1M
- Median Position
- $624.9K
Hedge Funds
- Hedge Funds
- 35
- Value Held
- $188.8M
- Shares Held
- 5.2M
- Avg Position
- $5.4M
- Median Position
- $2.6M
Ownership Breakdown
Based on market cap of $2.8B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in FORM as of Q3 2025
| Institution | Position Value |
|---|---|
B BlackRock, Inc. Institution | $409.2M 0.01% of portfolio |
 VANGUARD GROUP INC Institution | $375.1M 0.01% of portfolio |
 EARNEST PARTNERS LLC Long Only Manager | $216.6M 0.94% of portfolio |
 STATE STREET CORP Institution | $106.3M 0.00% of portfolio |
 BANK OF AMERICA CORP /DE/ Institution | $92.3M 0.01% of portfolio |
 REINHART MAHONEY CAPITAL MANAGEMENT INC Long Only Manager | $87.6M 2.85% of portfolio |
 ALLIANCEBERNSTEIN L.P. Long Only Manager | $87.3M 0.03% of portfolio |
 PRIMECAP MANAGEMENT CO/CA/ Long Only Manager | $84.7M 0.07% of portfolio |
 DIMENSIONAL FUND ADVISORS LP Long Only Manager | $79.1M 0.02% of portfolio |
 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Long Only Manager | $77.6M 0.02% of portfolio |
Net Capital Flow
Institutional buying and selling activity for FORM in Q3 2025
- Traded
- +$26.9M
- Buyers
- 130
- Sellers
- 158
- Total Bought
- +$245.6M
- Total Sold
- −$218.7M
- Avg Position
- $8.3M
Biggest Buyers
| Institution | Net Bought |
|---|---|
 WESTFIELD CAPITAL MANAGEMENT CO LP Long Only Manager | +$37.4M +1.0M shares |
S Shannon River Fund Management CO LLC Hedge Fund•Long/Short | +$35.3M +968.2K shares |
 PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager | +$20.6M +564.9K shares |
REINHART MAHONEY CAPITAL MANAGEMENT INC Long Only Manager | +$18.2M +500.2K shares |
 Channing Capital Management, LLC Long Only Manager | +$16.9M +464.3K shares |
 TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy | +$11.0M +302.4K shares |
B BESSEMER GROUP INC Institution | +$10.3M +282.8K shares |
S Squarepoint Ops LLC Hedge Fund•Quant | +$8.3M +229.2K shares |
 ALGERT COLDIRON INVESTORS LLC Hedge Fund•Quant | +$6.3M +172.5K shares |
P Polymer Capital Management LLC Hedge Fund•Multi-Strategy | +$4.4M +122.0K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
 Bank of New York Mellon Corp Institution | −$24.4M −669.1K shares |
 EMERALD ADVISERS INC/PA Long Only Manager | −$16.3M −474.0K shares |
 Hawk Ridge Management LLC Hedge Fund•Long/Short | −$16.1M −467.0K shares |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | −$10.0M −274.2K shares |
BANK OF AMERICA CORP /DE/ Institution | −$10.0M −273.6K shares |
C Cubist Systematic Strategies, LLC Institution | −$9.5M −275.0K shares |
 EMERALD MUTUAL FUND ADVISERS TRUST Long Only Manager | −$9.4M −272.8K shares |
 Allspring Global Investments Holdings, LLC Long Only Manager | −$8.5M −219.2K shares |
 ING INVESTMENT MANAGEMENT LLC Insurance Manager | −$8.0M −220.7K shares |
Q Qube Research & Technologies Ltd Institution | −$6.5M −189.1K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited FORM in Q3 2025
- New Positions
- 22
- New Value
- $46.5M
- Exited Positions
- 57
- Exited Value
- $97.6M
New Positions
| Institution | Position Value |
|---|---|
S Shannon River Fund Management CO LLC Hedge Fund•Long/Short | $35.3M 968.2K shares |
P Polymer Capital Management LLC Hedge Fund•Multi-Strategy | $4.4M 122.0K shares |
 SummitTX Capital, L.P. Hedge Fund•Multi-Strategy | $3.8M 105.0K shares |
 Voleon Capital Management LP Hedge Fund•Quant | $935.3K 25.7K shares |
E Entropy Technologies, LP Hedge Fund•Quant Macro | $697.4K 19.1K shares |
D DRW Securities, LLC Institution | $329.5K 9.1K shares |
$298.9K 8.2K shares | |
 Numerai GP LLC Hedge Fund•Quant | $238.9K 6.6K shares |
E EHP Funds Inc. Institution | $203.1K 5.6K shares |
A Abich Financial Wealth Management LLC RIA/Wealth | $139.6K 3.8K shares |
Exited Positions
| Institution | Previous Position |
|---|---|
EMERALD ADVISERS INC/PA Long Only Manager | $16.3M 474.0K shares |
Hawk Ridge Management LLC Hedge Fund•Long/Short | $16.1M 467.0K shares |
C Cubist Systematic Strategies, LLC Institution | $9.5M 275.0K shares |
EMERALD MUTUAL FUND ADVISERS TRUST Long Only Manager | $9.4M 272.8K shares |
Q Qube Research & Technologies Ltd Institution | $6.5M 189.1K shares |
 RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | $4.9M 143.0K shares |
 4D Advisors, LLC Hedge Fund•Long/Short | $4.3M 125.0K shares |
 LAZARD ASSET MANAGEMENT LLC Long Only Manager | $3.8M 109.6K shares |
C | $3.4M 99.6K shares |
T TWINBEECH CAPITAL LP Hedge Fund•Quant | $2.4M 69.2K shares |
Options Activity
Institutions with the largest Call and Put options positions in FORM as of Q3 2025
- Call Positions
- 10
- Call Value
- $11.0M
- Put Positions
- 4
- Put Value
- $1.6M
Call Positions
| Institution | Position Value |
|---|---|
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $3.5M 969.0 contracts |
J JANE STREET GROUP, LLC Institution | $2.4M 649.0 contracts |
P PEAK6 LLC Institution | $1.7M 464.0 contracts |
 SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC Hedge Fund•Long/Short | $1.5M 399.0 contracts |
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $1.4M 377.0 contracts |
W WOLVERINE TRADING, LLC Institution | $471.3K 130.0 contracts |
 Walleye Trading LLC RIA/Wealth | $123.8K 34.0 contracts |
 Caption Management, LLC Hedge Fund•Long/Short | - - contracts |
 Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy | - - contracts |
B Belvedere Trading LLC Institution | - - contracts |
Put Positions
| Institution | Position Value |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $1.1M 306.0 contracts |
J JANE STREET GROUP, LLC Institution | $433.4K 119.0 contracts |
Walleye Trading LLC RIA/Wealth | $80.1K 22.0 contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | - - contracts |
Most Committed Institutions
Institutions with FORM as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
S Shannon River Fund Management CO LLC Hedge Fund•Long/Short | 5.68% $35.3M |
REINHART MAHONEY CAPITAL MANAGEMENT INC Long Only Manager | 2.85% $87.6M |
 NEEDHAM INVESTMENT MANAGEMENT LLC Hedge Fund•Long/Short | 1.88% $27.0M |
M Montanaro Asset Management Ltd Institution | 1.14% $4.6M |
EARNEST PARTNERS LLC Long Only Manager | 0.94% $216.6M |
P Polymer Capital Management LLC Hedge Fund•Multi-Strategy | 0.59% $4.4M |
H Herald Investment Management Ltd Institution | 0.58% $4.3M |
R ROYCE & ASSOCIATES LLC Institution | 0.53% $53.5M |
Channing Capital Management, LLC Long Only Manager | 0.45% $16.9M |
 SORA INVESTORS LLC Hedge Fund•Long/Short | 0.38% $4.1M |
Hedge Fund Spotlight
Discover hedge funds investing in FORM
Edgestream Partners, L.P.
Hedge Fund • Quant Macro
Portfolio ManagerBrian Tahan
- Portfolio Value
- $3.4B
- Positions
- 842
- Last Reported
- Q3 2025
Sector Allocation
Position in FormFactor
- Market Value
- $3.2M
- Shares Held
- 87.8K
- Portfolio Weight
- 0.09%
- Owned Since
- 2024-Q3
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
ETF ETF | $67.0M | 1.96% | |
Semiconductors Technology | $38.2M | 1.12% | |
ETF ETF | $34.3M | 1.00% |
