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FormFactor, Inc.

TechnologyRussell 2000

FormFactor, Inc. insider trading

FormFactor, Inc. files with the SEC as a Semiconductors & Related Devices company headquartered in Livermore, CA. Every time one of its executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.

From SEC filings

Recent FORM insider transactions

3 insiders traded FORM on the open market between Jun 10, 2026 and Sep 16, 2026 — 24 sales worth $6.6M, of which 22 were pre-scheduled under a 10b5-1 plan.

Bought
—
Sold
$6.6M

22 of 24 on a 10b5-1 plan

Net
−$6.6M
Insiders
3

Open-market purchases (code P) and sales (code S) from FormFactor, Inc.'s own SEC Form 4 filings. Grants and option exercises are excluded — they are compensation, not decisions. Share counts are derived from the reported value and price. Verify any figure against the original filing before acting on it; this is monitoring, not advice.

Filing history last read from EDGAR on Sep 22, 2026. The live dashboard shows new filings the moment they clear.

Every FORM Form 4 on SEC.gov

SEC Form 4 data, Q3 2024 to Q2 2026

FORM insider trading by quarter

Between Jul 01, 2024 and Jun 30, 2026, 9 insiders traded FORM on the open market: 0 purchases and 86 sales worth $20.3M, 61 of the sales pre-scheduled under a 10b5-1 plan. In the last four quarters alone: 0 purchases and 59 sales ($17.7M), by 9 insiders.

QuarterBoughtSold
Q2 2026—−$7.5M31 sales · 24 on a plan
Q1 2026—−$8.8M19 sales · 9 on a plan
Q4 2025—−$1.1M6 sales · 4 on a plan
Q3 2025—−$363.9K3 sales · 1 on a plan
Q2 2025—−$452.9K4 sales · 3 on a plan
Q1 2025—−$586K6 sales · 5 on a plan
Q4 2024—−$619.9K6 sales · 5 on a plan
Q3 2024—−$908.9K11 sales · 10 on a plan
Largest sale
−$2.6M of FORM by Slessor Mike (CEO · Director) on Jan 06, 2026, under a 10b5-1 plan.

Open-market transactions through Jun 30, 2026most recent first

  • Rhodes Sheri

    Director

    −$793.5K

    Jun 02, 2026

    6,328 sh · $125.40

  • Obregon-Jimenez Rebeca

    Director

    −$484.2K

    May 21, 2026

    3,828 sh · $126.48

  • White Brian C

    Director

    −$409.5K

    May 20, 2026

    3,250 sh · $126.00

  • St Dennis Thomas

    Director

    −$115.8K

    May 19, 2026

    1,000 sh · $115.84

  • Steven-Waiss Kelley

    Director

    −$678.2K

    May 15, 2026

    5,400 sh · $125.60

  • Titinger Jorge

    Director

    −$516.3K

    May 13, 2026

    4,009 sh · $128.79

  • Slessor Mike10b5-1

    CEO · Director

    −$372.1K

    May 13, 2026

    2,984 sh · $124.71

  • Slessor Mike10b5-1

    CEO · Director

    −$174.3K

    May 13, 2026

    1,388 sh · $125.58

  • Slessor Mike10b5-1

    CEO · Director

    −$160.8K

    May 13, 2026

    1,300 sh · $123.72

  • Slessor Mike10b5-1

    CEO · Director

    −$95.6K

    May 13, 2026

    702 sh · $136.15

  • Slessor Mike10b5-1

    CEO · Director

    −$90.5K

    May 13, 2026

    700 sh · $129.33

  • Slessor Mike10b5-1

    CEO · Director

    −$90K

    May 13, 2026

    700 sh · $128.52

  • Slessor Mike10b5-1

    CEO · Director

    −$86K

    May 13, 2026

    700 sh · $122.84

  • Slessor Mike10b5-1

    CEO · Director

    −$50.4K

    May 13, 2026

    398 sh · $126.59

  • Slessor Mike10b5-1

    CEO · Director

    −$26.5K

    May 13, 2026

    200 sh · $132.63

From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.

FormFactor, Inc. company record

SEC industry classification
Semiconductors & Related Devices
Headquarters
Livermore, CA
Incorporated in
DE
Listed on
Nasdaq
SEC Central Index Key
0001039399

Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Technology sector shown above.

After insiders bought FORM

What the stock actually did in the 90 days following each open-market purchase

Don't check FORM — let it ping you

Get told the moment an insider moves on FORM

Pro watches FormFactor, Inc. for you and sends a Telegram ping within moments of a Form 4 clearing EDGAR — a C-suite open-market buy, a cluster, a 10b5-1 regime break — long before it reaches the press. Add FORM to a watchlist, see each mover's benchmark-measured track record and which legendary funds hold it, and read the full filing history instead of the last 72 hours.

Track FORM on the live dashboardFilings on SEC.gov

The live dashboard is free to open. Alerts, watchlists, full filing history and each mover's benchmark-measured track record are Pro. Monitoring, not advice.

How to read FORM insider activity

Open-market purchase (code P)
An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
Grants and option exercises (codes A, M)
Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
Cluster buy
Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.

Other Technology tickers

ACLSUCTTVECOONTOCAMTNVMIMTSISYNARMBSLITEAAOIINDI
This week on the tape: who actually chose to sellThe weekly split of scheduled 10b5-1 selling vs deliberate sales, with the deciders named.

Questions

Are FORM insiders buying or selling?
Between Jun 10, 2026 and Sep 16, 2026, 3 FormFactor, Inc. insiders made no open-market purchases and 24 sales worth $6.6M, a net sale of $6.6M. 22 of the sales were pre-scheduled under a Rule 10b5-1 plan.
How much FORM stock have insiders bought and sold in the last two years?
Between Jul 01, 2024 and Jun 30, 2026, 9 FormFactor, Inc. insiders made no open-market purchases and 86 sales worth $20.3M. 61 of the sales were pre-scheduled under a Rule 10b5-1 plan. In the four quarters to Jun 30, 2026: no purchases and 59 sales ($17.7M). The largest sale was Slessor Mike selling $2.6M on Jan 06, 2026.
What was the largest recent FORM insider trade?
Slessor Mike (CEO · Director) sold $910.9K of FORM stock on Sep 16, 2026 at about $104.26 a share, under a pre-scheduled 10b5-1 plan.
When did an insider last buy FORM shares?
No open-market purchase by a FormFactor, Inc. insider appears in the filings from Jun 10, 2026 to Sep 16, 2026 — every recorded open-market transaction in that period was a sale.
Where does FORM insider trading data come from?
From the Form 4 filings FormFactor, Inc.'s officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.

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