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.
| 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% |