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Insider · CIK 0001339595

Thomas St Dennis

director

Files at VECO (VEECO INSTRUMENTS INC), FORM (FORMFACTOR INC), ACLS (AXCELIS TECHNOLOGIES INC). First filing Nov 6, 2024, latest May 30, 2025.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 2
$0 bought, $215k sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

FORM: FORMFACTOR INC

FORMOct 9, 2026 · close 139.67

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
33Weak
FORMsell 2
FORMFACTOR INC
$94k
3,000 shares
-7%+34% from low-36% from high
33Weak
FORMsell 2
FORMFACTOR INC
$121k
3,100 shares
-8%-

Transactions

Every row this insider has filed, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
May 29, 2025FORM
FORMFACTOR INC
SOpen-market sale
Common Stock
-3,000$31.24$94k40,957May 30, 2025
May 16, 2025FORM
FORMFACTOR INC
AGrant or award
Common Stock
+6,528$0.00$043,957May 16, 2025
May 15, 2025ACLS
AXCELIS TECHNOLOGIES INC
AGrant or award
Common Stock
+3,586$0.00$017,155May 15, 2025
May 9, 2025VECO
VEECO INSTRUMENTS INC
AGrant or award
Common Stock
+8,291$0.00$060,152May 9, 2025
Nov 5, 2024FORM
FORMFACTOR INC
SOpen-market sale
Common Stock
-3,100$39.11$121k37,429Nov 6, 2024

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Thomas St Dennis: insider trades and track record | InsiderTell