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FORM Insider Trading & Form 4 Activity

FORMFACTOR INC
Last filing: Jun 16, 2026·11 days ago
BEARISH · LAST 90 DAYS
0%
buyers
$0
0 buys
$3.4M
7 sells
-$3.4M
net selling
6
insiders
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ACTIVE SELLING CLUSTER

5 insiders sold a combined $2.2M of FORM between May 13, 2026 and May 21, 2026.

Titinger Jorge, Steven-Waiss Kelley, St Dennis Thomas, White Brian C, Obregon-Jimenez Rebeca

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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Slessor Mike
CEO
$2.4M
-$2.4M
Rhodes Sheri
Insider
$794K
-$794K
Steven-Waiss Kelley
Insider
$678K
-$678K
St Dennis Thomas
Insider
$540K
-$540K
Titinger Jorge
Insider
$516K
-$516K
Obregon-Jimenez Rebeca
Insider
$484K
-$484K
White Brian C
Insider
$410K
-$410K
Mckinnis Aric Brendan
CFO, SVP Global Finance
$0

Recent transactions

Every Form 4 transaction for FORM, newest first.

GIFT
St Dennis Thomas · Insider
Tx Jun 16·Filed Jun 16·EDGAR ↗
740 sh
SELL
St Dennis Thomas · Insider
Tx Jun 15·Filed Jun 16·EDGAR ↗
2,800 sh @ $151.49
$424K
SELL10b5-1
Slessor Mike · CEO
Tx Jun 10·Filed Jun 11·EDGAR ↗
975 sh @ $121.00
$118K
SELL10b5-1
Slessor Mike · CEO
Tx Jun 10·Filed Jun 11·EDGAR ↗
400 sh @ $119.46
$48K
SELL10b5-1
Slessor Mike · CEO
Tx Jun 10·Filed Jun 11·EDGAR ↗
767 sh @ $119.00
$91K
SELL10b5-1
Slessor Mike · CEO
Tx Jun 10·Filed Jun 11·EDGAR ↗
2,500 sh @ $122.63
$307K
SELL10b5-1
Slessor Mike · CEO
Tx Jun 10·Filed Jun 11·EDGAR ↗
4,220 sh @ $121.72
$514K
SELL10b5-1
Slessor Mike · CEO
Tx Jun 10·Filed Jun 11·EDGAR ↗
1,399 sh @ $117.70
$165K
SELL10b5-1
Slessor Mike · CEO
Tx Jun 10·Filed Jun 11·EDGAR ↗
1,629 sh @ $123.37
$201K
TAX
Mckinnis Aric Brendan · CFO, SVP Global Finance
Tx Jun 2·Filed Jun 4·EDGAR ↗
193 sh @ $125.11
$24K
SELL
Rhodes Sheri · Insider
Tx Jun 2·Filed Jun 4·EDGAR ↗
6,328 sh @ $125.40
$794K
EXERCISE
Mckinnis Aric Brendan · CFO, SVP Global Finance
Tx Jun 2·Filed Jun 4·EDGAR ↗
773 sh
SELL
Obregon-Jimenez Rebeca · Insider
Tx May 21·Filed May 22·EDGAR ↗
3,828 sh @ $126.47
$484K
SELL
White Brian C · Insider
Tx May 20·Filed May 21·EDGAR ↗
3,250 sh @ $126.00
$410K
SELL
St Dennis Thomas · Insider
Tx May 19·Filed May 21·EDGAR ↗
1,000 sh @ $115.84
$116K
AWARD
Rhodes Sheri · Insider
Tx May 15·Filed May 19·EDGAR ↗
1,347 sh
AWARD
Steven-Waiss Kelley · Insider
Tx May 15·Filed May 19·EDGAR ↗
1,347 sh
AWARD
Obregon-Jimenez Rebeca · Insider
Tx May 15·Filed May 19·EDGAR ↗
1,347 sh
AWARD
St Dennis Thomas · Insider
Tx May 15·Filed May 19·EDGAR ↗
1,347 sh
AWARD
White Brian C · Insider
Tx May 15·Filed May 19·EDGAR ↗
1,347 sh
AWARD
Titinger Jorge · Insider
Tx May 15·Filed May 19·EDGAR ↗
1,347 sh
SELL
Steven-Waiss Kelley · Insider
Tx May 15·Filed May 15·EDGAR ↗
5,400 sh @ $125.60
$678K
SELL
Titinger Jorge · Insider
Tx May 13·Filed May 15·EDGAR ↗
4,009 sh @ $128.78
$516K
SELL10b5-1
Slessor Mike · CEO
Tx May 13·Filed May 14·EDGAR ↗
66 sh @ $135.73
$9K
SELL10b5-1
Slessor Mike · CEO
Tx May 13·Filed May 14·EDGAR ↗
700 sh @ $122.84
$86K
SELL10b5-1
Slessor Mike · CEO
Tx May 13·Filed May 14·EDGAR ↗
1,300 sh @ $123.72
$161K
SELL10b5-1
Slessor Mike · CEO
Tx May 13·Filed May 14·EDGAR ↗
2,984 sh @ $124.71
$372K
SELL10b5-1
Slessor Mike · CEO
Tx May 13·Filed May 14·EDGAR ↗
1,388 sh @ $125.58
$174K
SELL10b5-1
Slessor Mike · CEO
Tx May 13·Filed May 14·EDGAR ↗
398 sh @ $126.59
$50K
SELL10b5-1
Slessor Mike · CEO
Tx May 13·Filed May 14·EDGAR ↗
100 sh @ $127.47
$13K
SELL10b5-1
Slessor Mike · CEO
Tx May 13·Filed May 14·EDGAR ↗
200 sh @ $130.57
$26K
SELL10b5-1
Slessor Mike · CEO
Tx May 13·Filed May 14·EDGAR ↗
702 sh @ $136.15
$96K
EXERCISE
Slessor Mike · CEO
Tx May 7·Filed May 8·EDGAR ↗
5,908 sh
TAX
Slessor Mike · CEO
Tx May 7·Filed May 8·EDGAR ↗
3,288 sh @ $144.68
$476K
TAX
Mckinnis Aric Brendan · CFO, SVP Global Finance
Tx May 6·Filed May 7·EDGAR ↗
274 sh @ $149.12
$41K
TAX
Slessor Mike · CEO
Tx May 6·Filed May 7·EDGAR ↗
3,357 sh @ $149.12
$501K
EXERCISE
Mckinnis Aric Brendan · CFO, SVP Global Finance
Tx May 6·Filed May 7·EDGAR ↗
1,099 sh
EXERCISE
Slessor Mike · CEO
Tx May 6·Filed May 7·EDGAR ↗
6,031 sh
TAX
Mckinnis Aric Brendan · CFO, SVP Global Finance
Tx May 5·Filed May 7·EDGAR ↗
130 sh @ $145.00
$19K
EXERCISE
Mckinnis Aric Brendan · CFO, SVP Global Finance
Tx May 5·Filed May 7·EDGAR ↗
521 sh
EXERCISE
Slessor Mike · CEO
Tx May 5·Filed May 7·EDGAR ↗
3,644 sh
TAX
Slessor Mike · CEO
Tx May 5·Filed May 7·EDGAR ↗
2,028 sh @ $145.00
$294K

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About FORM insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for FORM from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying FORM always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on FORMFACTOR INC (FORM) when they form.

Where does FORM insider trading data come from?

Every Form 4 filing for FORM is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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