InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (22 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
22
T+90 hit rate
59%
T+90 mean return
+0.9%
Across 29 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the complete record of transactions filed by SLESSOR MIKE, Chief Executive Officer. Director active across 3 companies, notably Formfactor INC. Cumulatively, 57 filings have been published. Split: 0 buy · 22 sells. Total volume traded: €5.2m. Activity tracked since 11 May 2021. The latest transaction was disclosed on 27 May 2026 (Attribution). Regulator: SEC (Form 4). The full history is accessible without signup.
Declarations57 total
2,093 shares0Common StockSEC:0001193125-26-245774:0
700 shares@ US$122.840.0017% mcap29.7% of flowCommon StockSEC:0001628280-26-035233
700 shares@ US$122.840.0007% mcap2.4% of flowCommon StockSEC:0001628280-26-035233:0
5,908 sharesCommon StockSEC:0001039399-25-000046:0
3,644 sharesCommon StockSEC:0001039399-25-000040:0
4,000 shares@ US$31.722.0% of flowCommon StockSEC:0001039399-25-000035:0
4,000 shares@ US$28.24431.9% of flowCommon StockSEC:0001039399-25-000029:0
4,000 shares@ US$33.052.3% of flowCommon StockSEC:0001039399-25-000025:0
5,908 shares0Common StockSEC:0001039399-25-000016:0
3,644 shares0Common StockSEC:0001039399-25-000013:0
3,900 shares@ US$38.972.7% of flowCommon StockSEC:0001039399-25-000005:0
3,600 shares@ US$44.382.8% of flowCommon StockSEC:0001039399-25-000002:0
3,899 shares@ US$40.572.7% of flowCommon StockSEC:0001039399-24-000047:0
5,908 shares0Common StockSEC:0001039399-24-000043:0
3,644 shares0Common StockSEC:0001039399-24-000039:0
4,000 shares@ US$38.81232.6% of flowCommon StockSEC:0001039399-24-000032:0
3,000 shares@ US$45.04282.2% of flowCommon StockSEC:0001590177-24-000038:0
2,812 shares@ US$45.94492.1% of flowCommon StockSEC:0001590177-24-000036:0
5,908 shares0Common StockSEC:0001590177-24-000032:0
1,038 shares@ US$48.59790.9% of flowCommon StockSEC:0001590177-24-000030:0
88,902 shares0Common StockSEC:0001590177-24-000028:0
2,323 shares@ US$58.43742.3% of flowCommon StockSEC:0001590177-24-000022:0
2,770 shares@ US$54.17022.5% of flowCommon StockSEC:0001590177-24-000020:0
5,908 shares0Common StockSEC:0001590177-24-000018:0
4,000 shares@ US$43.74563.0% of flowCommon StockSEC:0001590177-24-000016:0
25 of 57 declarations
About SLESSOR MIKE
Mike Slessor is the Chief Executive Officer of FormFactor Inc.
