FormFactor ($FORM) Insider Trading & Smart Money Activity
FormFactor, Inc. ($FORM) has 3 insider trades and 2 13F position changes on file. In the last 12 months on the open market, no insider bought and 2 insiders sold ($1.81M), net -$1.81M.
- Insider buyers (12 mo)
- 0
- Insider sellers (12 mo)
- 2
- Net insider $ (12 mo)
- -$1.81M
- Congress trades (12 mo)
- 0
- 13F moves on file
- 2
- Analyst ratings on file
- 0
FORM insider buying and selling by quarter
| Quarter | Insider buys | Insider sales | Congress buys / sales | 13F added / cut |
|---|---|---|---|---|
| Q1 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
| Q2 2026 | 0 | 1 · $424.17K | 0 / 0 | 0 / 1 |
| Q3 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
| Q4 2026 | 0 | 1 · $1.39M | 0 / 0 | 1 / 0 |
Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.
All FORM insider, congress, 13F and analyst activity
| Date | Source | Who | Action | Shares | Value / amount | ΔOwn | 1W | 1M | 6M | Filing | Story |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Insider | Mike SlessorCEO | Sell (Open-market sale) 10b5-1 | 11.10K sh | $1.39M | Read | ||||||
| 13F | Sendero Wealth Management | New | +17.49K sh | $2.61M | — | ||||||
| Insider | St Dennis Thomas | Sell (Gift) | 740 sh | +1.8% | -23.6% | Read | |||||
| Insider | St Dennis Thomas | Sell (Open-market sale) | 2.80K sh | $424.17K | +2.7% | -24.1% | Read | ||||
| 13F | Earnest Partners | Reduced | -899.83K sh | $779.69M | +2.2% | +20.9% | — |
1W / 1M / 6M = how FORM moved from the trade or filing date.
Insider trading in FORM: who is buying and selling
| Insider | Role | Trades | Open-market net | Shares held | Last trade |
|---|---|---|---|---|---|
| Mike Slessor | CEO | 1 | -$1.39M | Oct 14, 2026 | |
| St Dennis Thomas | 2 | -$424.17K | Jun 16, 2026 |
Institutions moving FORM (13F)
Frequently asked questions
Are FORM insiders buying or selling?
Over the last 12 months 0 insiders made 0 open-market purchases worth $0 and 2 insiders made 2 open-market sales worth $1.81M, a net -$1.81M.
What is the latest insider trade in FORM?
Mike Slessor, CEO filed a sell (open-market sale) of 11.10K sh worth $1.39M on Oct 14, 2026.
Which institutions changed their FORM positions?
Recent 13F filers moving the stock include Sendero Wealth Management and Earnest Partners.
Other semiconductor equipment & materials stocks
Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.
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