SLESSOR, MIKE
Director, CEO
- Shares
- 767
- % company
- <0.01%
- Price
- $119.00
- Value
- $91,273
Filed Jun 10, 2026
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
NASDAQ · TECHNOLOGY · Holders
FormFactor Inc (FORM) Institutional Ownership & Insider Trading History
Recent insider purchases and sales for FORM from Form 4 filings. Institutional holdings surface here when ownership sources publish.
Section freshness
Price Jun 24, 4:00 PM EDT · Statements Mar 30, 8:00 PM EDT
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Data freshness
Prices update fastest. Fundamentals, analyst data, and news update on their own schedules, so check these timestamps before comparing signals.
Price time means the latest available trade or regular-market close. Other times show when that section was checked or published.
PriceLive
Last traded •
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Fundamentalsevery 1 day
Provider checked •
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Analystevery 1 day
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Newsevery 15 min
Latest item •
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Ownership read
FORM insider sentiment: Net selling.
94 sales and 0 purchases appear in the recent Form 4 filings. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
FORM
Purchases—
Sales279.17K
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
—
Institutional data pending
Insider stance
Net selling
$19.86M sold / — bought
Latest filing
Jun 10, 2026
Most recent holder or insider filing date
Filings shown
120
0 holder / 120 insider
- Holder rows
- Pending
- Market data source
- Latest filing
- Jun 10, 2026
- Most recent holder or insider filing date
- Increased / initiated
- Pending
- 0 decreased
- Insider rows
- 120
- Market data source
Recent insider transactions
FormFactor Inc (FORM) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
SLESSOR, MIKE
Director, CEO
- Shares
- 1.63K
- % company
- <0.01%
- Price
- $123.37
- Value
- $200,970
Filed Jun 10, 2026
SLESSOR, MIKE
Director, CEO
- Shares
- 2.50K
- % company
- <0.01%
- Price
- $122.63
- Value
- $306,575
Filed Jun 10, 2026
SLESSOR, MIKE
Director, CEO
- Shares
- 4.22K
- % company
- <0.01%
- Price
- $121.72
- Value
- $513,658
Filed Jun 10, 2026
SLESSOR, MIKE
Director, CEO
- Shares
- 975
- % company
- <0.01%
- Price
- $121.00
- Value
- $117,975
Filed Jun 10, 2026
SLESSOR, MIKE
Director, CEO
- Shares
- 1.40K
- % company
- <0.01%
- Price
- $117.70
- Value
- $164,662
Filed Jun 10, 2026
SLESSOR, MIKE
Director, CEO
- Shares
- 400
- % company
- <0.01%
- Price
- $119.46
- Value
- $47,784
Filed Jun 10, 2026
RHODES, SHERI
Director
- Shares
- 6.33K
- % company
- <0.01%
- Price
- $125.40
- Value
- $793,531
Filed Jun 2, 2026
MCKINNIS, ARIC BRENDAN
CFO, SVP Global Finance
- Shares
- 773
- % company
- <0.01%
- Price
- Not reported
- Value
- Not reported
Filed Jun 2, 2026
MCKINNIS, ARIC BRENDAN
CFO, SVP Global Finance
- Shares
- 773
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 2, 2026
MCKINNIS, ARIC BRENDAN
CFO, SVP Global Finance
- Shares
- 193
- % company
- <0.01%
- Price
- $125.11
- Value
- $24,146
Filed Jun 2, 2026
OBREGON-JIMENEZ, REBECA
Director
- Shares
- 3.83K
- % company
- <0.01%
- Price
- $126.48
- Value
- $484,146
Filed May 21, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | SLESSOR, MIKE Director, CEO | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 767 | $119.00 | $91,273 | Jun 10, 2026 |
| 2 | SLESSOR, MIKE Director, CEO | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 1.63K | $123.37 | $200,970 | Jun 10, 2026 |
| 3 | SLESSOR, MIKE Director, CEO | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 2.50K | $122.63 | $306,575 | Jun 10, 2026 |
| 4 | SLESSOR, MIKE Director, CEO | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 4.22K | $121.72 | $513,658 | Jun 10, 2026 |
| 5 | SLESSOR, MIKE Director, CEO | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 975 | $121.00 | $117,975 | Jun 10, 2026 |
| 6 | SLESSOR, MIKE Director, CEO | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 1.40K | $117.70 | $164,662 | Jun 10, 2026 |
| 7 | SLESSOR, MIKE Director, CEO | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 400 | $119.46 | $47,784 | Jun 10, 2026 |
| 8 | RHODES, SHERI Director | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 6.33K | $125.40 | $793,531 | Jun 2, 2026 |
| 9 | MCKINNIS, ARIC BRENDAN CFO, SVP Global Finance | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 773 | Not reported | Not reported | Jun 2, 2026 |
| 10 | MCKINNIS, ARIC BRENDAN CFO, SVP Global Finance | <0.01% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 773 | No cash value | No cash value | Jun 2, 2026 |
| 11 | MCKINNIS, ARIC BRENDAN CFO, SVP Global Finance | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 193 | $125.11 | $24,146 | Jun 2, 2026 |
| 12 | OBREGON-JIMENEZ, REBECA Director | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 3.83K | $126.48 | $484,146 | May 21, 2026 |
Showing 12 of 120 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders
Frequently asked
Common questions.
Who are the largest FORM shareholders?
FormFactor Inc (FORM) institutional holders are ranked by reported share count when ownership data publishes filing rows.
What is institutional ownership of FORM?
FormFactor Inc (FORM) institutional ownership appears when filing-based market data returns holder rows. TECHi does not fill unavailable ownership fields with placeholder shareholders.
Where can I see FormFactor Inc insider transactions?
FormFactor Inc (FORM) has 120 Form 4 insider transactions on file, most recently on Jun 10, 2026, separated into purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are distinguished from open-market trades.
Are FORM insiders buying or selling?
Recent FORM insider activity reads Net selling: 94 sales and 0 purchases. Awards, gifts, conversions, and tax withholding are listed separately because they do not carry the same signal as open-market trades.
Who is the most active FORM insider?
SLESSOR, MIKE is the most active FORM insider by absolute share movement, with 250,756 shares moving across the filing history. Review the action labels before treating that activity as buying or selling.