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Companies
▲ Purchases (0 ops.)
▼ Sales (57 ops.)
Latest filing published 14 Oct 2026 for FORMFACTOR INC, €243k. Read the official filing
Filing timeline
BuySaleMike Slessor
Insider track record
Disclosed buys
0
Disclosed sells
57
Signal history
Mike Slessor: trading record in brief
Mike Slessor (chief executive) discloses dealings in 2 companies, chiefly Formfactor Inc and Benchmark Electronics Inc. The record holds 102 filings, for trades running from 11 May 2021 to 14 October 2026.
The open-market record consists of 57 sales worth €13.7M, with no purchase. The amount is not disclosed for 7 filings. Other entries cover 9 share grants and 31 option exercises. Since January 2026: no purchases and 35 sales on the market.
The latest filing, published on 14 October 2026, reports an open-market sale of €862k in Formfactor Inc. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. Section 16 rules allow two business days to file each Form 4. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
Companies and markets linked to Mike Slessor
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Declarations102 total
2,195 shares@ US$124.23Common StockSEC:0001628280-26-065922:0
7,703 shares@ US$125.36Common StockSEC:0001628280-26-065922:1
1,200 shares@ US$125.92Common StockSEC:0001628280-26-065922:2
1,000 shares@ US$105.800.0010% mcap0.5% of flowCommon StockSEC:0001628280-26-062602:2
8,737 shares@ US$104.260.0089% mcap4.3% of flowCommon StockSEC:0001628280-26-062602:0
7,773 shares@ US$105.120.0080% mcap3.9% of flowCommon StockSEC:0001628280-26-062602:1
2,482 shares@ US$128.720.0031% mcap1.5% of flowCommon StockSEC:0001628280-26-057485:0
3,282 shares@ US$130.540.0042% mcap2.0% of flowCommon StockSEC:0001628280-26-057485:2
2,892 shares@ US$129.550.0037% mcap1.8% of flowCommon StockSEC:0001628280-26-057485:1
1,125 shares@ US$131.650.0015% mcap0.7% of flowCommon StockSEC:0001628280-26-057485:3
5,535 shares@ US$132.500.0072% mcap3.5% of flowCommon StockSEC:0001628280-26-057485:4
686 shares@ US$133.330.0009% mcap0.4% of flowCommon StockSEC:0001628280-26-057485:5
141,792 shares0Common StockSEC:0001628280-26-055434:0
5,908 shares0Common StockSEC:0001628280-26-055434:2
78,908 shares@ US$117.390.091% mcap44.0% of flowCommon StockSEC:0001628280-26-055434:1
3,288 shares@ US$117.390.0038% mcap1.8% of flowCommon StockSEC:0001628280-26-055434:3
3,644 shares0Common StockSEC:0001628280-26-054951:0
6,031 shares0Common StockSEC:0001628280-26-054951:2
2,028 shares@ US$114.440.0023% mcap1.1% of flowCommon StockSEC:0001628280-26-054951:1
3,357 shares@ US$115.210.0038% mcap1.8% of flowCommon StockSEC:0001628280-26-054951:3
706 shares@ US$118.210.0008% mcap0.4% of flowCommon StockSEC:0001628280-26-048529:2
170 shares@ US$119.080.0002% mcap0.1% of flowCommon StockSEC:0001628280-26-048529:3
300 shares@ US$120.580.0004% mcap0.2% of flowCommon StockSEC:0001628280-26-048529:4
868 shares@ US$121.300.0010% mcap0.5% of flowCommon StockSEC:0001628280-26-048529:5
1,041 shares@ US$116.560.0012% mcap0.6% of flowCommon StockSEC:0001628280-26-048529:0
25 of 102 declarations
