SEC Insider Transactions from Mahoney Robert John.

Last updated: 2026-05-20 23:10 UTC | Total transactions: 11

Mahoney Robert John has filed 11 insider transactions across 1 company since January 2026.

Most recent transaction: a tax payment of 130 shares of AXCELIS TECHNOLOGIES INC ($ACLS) on May 18, 2026.

Activity breakdown: 0 open-market purchases and 1 sale.

Set Up your own filters →
Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
May 18, 2026 AXCELIS TECHNOLOGIES INC $ACLS Mahoney Robert John EVP Global Operations F Common Stock 130 $146.24 15,565.0000 30,980,000 0.83% 0.00%
May 18, 2026 AXCELIS TECHNOLOGIES INC $ACLS Mahoney Robert John EVP Global Operations F Common Stock 182 $146.24 15,695.0000 30,980,000 1.15% 0.00%
May 15, 2026 AXCELIS TECHNOLOGIES INC $ACLS Mahoney Robert John EVP Global Operations A Common Stock 1947 $0.00 16,653.0000 30,980,000 13.24% 0.01%
May 15, 2026 AXCELIS TECHNOLOGIES INC $ACLS Mahoney Robert John EVP Global Operations F Common Stock 372 $155.18 16,281.0000 30,980,000 2.23% 0.00%
May 15, 2026 AXCELIS TECHNOLOGIES INC $ACLS Mahoney Robert John EVP Global Operations A Common Stock 1947 $0.00 14,706.0000 30,980,000 15.26% 0.01%
May 15, 2026 AXCELIS TECHNOLOGIES INC $ACLS Mahoney Robert John EVP Global Operations F Common Stock 173 $155.18 16,108.0000 30,980,000 1.06% 0.00%
May 15, 2026 AXCELIS TECHNOLOGIES INC $ACLS Mahoney Robert John EVP Global Operations F Common Stock 170 $155.18 15,938.0000 30,980,000 1.06% 0.00%
May 15, 2026 AXCELIS TECHNOLOGIES INC $ACLS Mahoney Robert John EVP Global Operations F Common Stock 61 $155.18 15,877.0000 30,980,000 0.38% 0.00%
May 12, 2026 AXCELIS TECHNOLOGIES INC $ACLS Mahoney Robert John EVP Global Operations S Common Stock 2258 $161.00 12,759.0000 30,980,000 15.04% 0.01%
March 2, 2026 AXCELIS TECHNOLOGIES INC $ACLS Mahoney Robert John EVP Global Operations F Common Stock 573 $86.58 14,633.0000 31,668,000 3.77% 0.00%
Jan. 15, 2026 AXCELIS TECHNOLOGIES INC $ACLS Mahoney Robert John EVP Global Operations A Common Stock 1734 $0.00 15,206.0000 31,668,000 12.87% 0.01%