SEC Insider Transactions from KEITHLEY JOSEPH P.

Last updated: 2026-03-16 13:04 UTC | Total transactions: 16

KEITHLEY JOSEPH P has filed 16 insider transactions across 1 company since February 2023.

Most recent transaction: a sale of 500 shares of AXCELIS TECHNOLOGIES INC ($ACLS) on December 14, 2023.

Activity breakdown: 0 open-market purchases and 15 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Dec. 14, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 500 $140.50 3,157.0000 33,159,000 13.67% 0.00%
Nov. 10, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 500 $130.43 4,157.0000 33,159,000 10.74% 0.00%
June 12, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 500 $181.75 4,157.0000 33,293,000 10.74% 0.00%
June 7, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 1000 $173.00 4,657.0000 33,293,000 17.68% 0.00%
June 6, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 1000 $163.50 5,657.0000 33,293,000 15.02% 0.00%
May 25, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 1000 $152.21 6,657.0000 33,293,000 13.06% 0.00%
May 25, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 1000 $152.21 9,657.0000 33,293,000 9.38% 0.00%
May 18, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 1000 $141.77 8,657.0000 33,293,000 10.36% 0.00%
May 18, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 1000 $143.09 7,657.0000 33,293,000 11.55% 0.00%
May 17, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 1000 $134.50 9,657.0000 33,293,000 9.38% 0.00%
May 16, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 1000 $131.00 10,657.0000 33,293,000 8.58% 0.00%
May 15, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 2000 $125.19 11,375.0000 33,293,000 14.95% 0.01%
May 15, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 1000 $127.84 10,375.0000 33,293,000 8.79% 0.00%
May 15, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director A Common Stock 1282 $0.00 11,657.0000 33,293,000 12.36% 0.00%
Feb. 13, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 3000 $125.68 16,375.0000 33,542,000 15.48% 0.01%
Feb. 13, 2023 AXCELIS TECHNOLOGIES INC $ACLS KEITHLEY JOSEPH P Director S Common Stock 3000 $123.36 13,375.0000 33,542,000 18.32% 0.01%