ACLS
insider transactionsAXCELIS TECHNOLOGIES INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-40.3K
0 buy · 40.3K sell
Net value · 365d
-$6.0M
$0 in · $6.0M out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
21
0 buy · 40.3K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Other·F
David Ryzhik KEY
SVP Interim CFO
$13.4K
76 sh · $176.85
Own -1%
-
Other·F
EVP, Research, Dev. & Eng.
$96.9K
506 sh · $191.60
Own -2%
-
Sell·S
Director
$249.7K
1.6K sh · $157.44
Own -18%
-
Sell·S
EVP Global Operations
$179.3K
1.2K sh · $155.24
Own -7%
-
Sell·S
VP Corporate Controller
$320.0K
2.0K sh · $159.99
Own -24%
-
Sell·S
EVP, General Counsel and Sec'y
$144.0K
926 sh · $155.51
Own -3%
-
Sell·S
Director
$139.8K
900 sh · $155.37
Own -5%
-
Sell·S
EVP, Research, Dev. & Eng.
$177.3K
1.2K sh · $152.70
Own -5%
-
Sell·S
EVP Global Customer Operations
$174.6K
1.2K sh · $149.75
Own -4%
-
Sell·S
Director
$250.9K
1.8K sh · $140.22
Own -14%
-
Sell·S
Director
$85.5K
600 sh · $142.51
Own -10%
-
Sell·S
Director
$371.2K
2.6K sh · $141.41
Own -30%
-
Sell·S
Director
$485.8K
3.5K sh · $138.79
Own -10%
-
Other·F
VP Corporate Controller
$26.9K
184 sh · $146.24
Own -2%
-
Other·F
EVP Global Operations
$19.0K
130 sh · $146.24
Own -1%
-
Other·F
EVP Global Operations
$26.6K
182 sh · $146.24
Own -1%
-
Other·F
EVP MARKETING AND APPLICATIONS
$11.6K
79 sh · $146.24
Own -0%
-
Other·F
EVP MARKETING AND APPLICATIONS
$16.2K
111 sh · $146.24
Own -0%
-
Other·F
Russell Low KEY
PRESIDENT AND CEO
$104.0K
711 sh · $146.24
Own -0%
-
Grant·A
Director
$0
1.4K sh
Own +12%
-
Grant·A
Director
$0
1.4K sh
Own +14%
-
Grant·A
Director
$0
1.4K sh
Own +32%
-
Grant·A
Director
$0
1.4K sh
Own +8%
-
Grant·A
Director
$0
1.4K sh
Own +20%
-
Grant·A
Director
$0
1.4K sh
Own +20%
-
Grant·A
Director
$0
1.4K sh
Own +4%
-
Other·F
VP Corporate Controller
$16.0K
103 sh · $155.18
Own -1%
-
Other·F
VP Corporate Controller
$17.4K
112 sh · $155.18
Own -1%
-
Other·F
VP Corporate Controller
$35.1K
226 sh · $155.18
Own -3%
-
Grant·A
VP Corporate Controller
$0
1.2K sh
Own +15%
-
Other·F
David Ryzhik KEY
SVP Interim CFO
$35.1K
226 sh · $155.18
Own -2%
-
Grant·A
David Ryzhik KEY
SVP Interim CFO
$0
3.1K sh
Own +44%
-
Other·F
EVP Global Operations
$9.5K
61 sh · $155.18
Own -0%
-
Other·F
EVP Global Operations
$26.4K
170 sh · $155.18
Own -1%
-
Other·F
EVP Global Operations
$26.8K
173 sh · $155.18
Own -1%
-
Other·F
EVP Global Operations
$57.7K
372 sh · $155.18
Own -2%
-
Grant·A
EVP Global Operations
$0
1.9K sh
Own +15%
-
Other·F
EVP Global Customer Operations
$26.4K
170 sh · $155.18
Own -1%
-
Other·F
EVP Global Customer Operations
$53.5K
345 sh · $155.18
Own -1%
-
Other·F
EVP Global Customer Operations
$115.5K
744 sh · $155.18
Own -2%
-
Grant·A
EVP Global Customer Operations
$0
3.5K sh
Own +15%
-
Other·F
EVP, Research, Dev. & Eng.
$53.5K
345 sh · $155.18
Own -2%
-
Other·F
EVP, Research, Dev. & Eng.
$115.5K
744 sh · $155.18
Own -3%
-
Grant·A
EVP, Research, Dev. & Eng.
$0
2.7K sh
Own +16%
-
Other·F
EVP MARKETING AND APPLICATIONS
$27.5K
177 sh · $155.18
Own -1%
-
Other·F
EVP MARKETING AND APPLICATIONS
$32.6K
210 sh · $155.18
Own -1%
-
Other·F
EVP MARKETING AND APPLICATIONS
$70.1K
452 sh · $155.18
Own -1%
-
Grant·A
EVP MARKETING AND APPLICATIONS
$0
3.1K sh
Own +10%
-
Other·F
EVP, General Counsel and Sec'y
$134.5K
867 sh · $155.18
Own -3%
-
Grant·A
EVP, General Counsel and Sec'y
$0
3.9K sh
Own +15%
-
Other·F
Russell Low KEY
PRESIDENT AND CEO
$225.5K
1.5K sh · $155.18
Own -1%
-
Other·F
Russell Low KEY
PRESIDENT AND CEO
$267.2K
1.7K sh · $155.18
Own -1%
-
Other·F
Russell Low KEY
PRESIDENT AND CEO
$576.6K
3.7K sh · $155.18
Own -2%
-
Grant·A
Russell Low KEY
PRESIDENT AND CEO
$0
19.5K sh
Own +16%
-
Sell·S
VP Corporate Controller
$421.9K
2.6K sh · $163.89
Own -25%
-
Sell·S
EVP, Research, Dev. & Eng.
$164.7K
1.0K sh · $162.32
Own -6%
-
Sell·S
EVP MARKETING AND APPLICATIONS
$463.7K
2.9K sh · $160.85
Own -9%
-
Sell·S
Director
$328.3K
2.0K sh · $164.14
Own -31%
-
Sell·S
EVP Global Operations
$363.5K
2.3K sh · $161.00
Own -15%
-
Sell·S
Russell Low KEY
PRESIDENT AND CEO · 10b5-1
$1.2M
7.5K sh · $156.75
Own -6%
-
Sell·S
Russell Low KEY
PRESIDENT AND CEO · 10b5-1
$172.7K
1.2K sh · $138.86
Own -1%
-
Other·F
EVP Global Customer Operations
$118.8K
907 sh · $131.02
Own -4%
-
Sell·S
Russell Low KEY
PRESIDENT AND CEO · 10b5-1
$117.0K
1.2K sh · $94.06
Own -1%
-
Sell·S
Russell Low KEY
PRESIDENT AND CEO · 10b5-1
$112.0K
1.2K sh · $90.00
Own -1%
-
Other·F
EVP Global Operations
$49.6K
573 sh · $86.58
Own -4%
-
Other·F
EVP Global Customer Operations
$97.1K
1.1K sh · $86.58
Own -5%
-
Other·F
EVP, Research, Dev. & Eng.
$97.1K
1.1K sh · $86.58
Own -6%
-
Other·F
EVP MARKETING AND APPLICATIONS
$62.6K
723 sh · $86.58
Own -2%
-
Other·F
EVP AND CFO
$155.8K
1.8K sh · $86.58
Own -5%
-
Other·F
Russell Low KEY
PRESIDENT AND CEO
$452.6K
5.2K sh · $86.58
Own -4%
-
Sell·S
Director
$80.0K
1.0K sh · $80.00
Own -13%
-
Grant·A
EVP Global Operations
$0
1.7K sh
Own +13%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 16, 2026 | David Ryzhik KEY | Other F | 76 | $13.4K |
| Jun 15, 2026 | Gerald M Blumenstock | Other F | 506 | $96.9K |
| Jun 3, 2026 | Necip Sayiner | Sell S | 1.6K | $249.7K |
| Jun 2, 2026 | Robert John Mahoney | Sell S | 1.2K | $179.3K |
| May 27, 2026 | Todd Sutton | Sell S | 2.0K | $320.0K |
| May 22, 2026 | Eileen Evans | Sell S | 926 | $144.0K |
| May 22, 2026 | Thomas St Dennis | Sell S | 900 | $139.8K |
| May 21, 2026 | Gerald M Blumenstock | Sell S | 1.2K | $177.3K |
| May 20, 2026 | Christopher Tatnall | Sell S | 1.2K | $174.6K |
| May 19, 2026 | Jeanne Quirk | Sell S | 1.8K | $250.9K |
| May 19, 2026 | Gregory B Graves | Sell S | 600 | $85.5K |
| May 19, 2026 | Gregory B Graves | Sell S | 2.6K | $371.2K |
| May 19, 2026 | John T Kurtzweil | Sell S | 3.5K | $485.8K |
| May 18, 2026 | Todd Sutton | Other F | 184 | $26.9K |
| May 18, 2026 | Robert John Mahoney | Other F | 130 | $19.0K |
| May 18, 2026 | Robert John Mahoney | Other F | 182 | $26.6K |
| May 18, 2026 | Greg Redinbo | Other F | 79 | $11.6K |
| May 18, 2026 | Greg Redinbo | Other F | 111 | $16.2K |
| May 18, 2026 | Russell Low KEY | Other F | 711 | $104.0K |
| May 15, 2026 | Jeanne Quirk | Grant A | 1.4K | $0 |
| May 15, 2026 | Tzu Yin Chiu | Grant A | 1.4K | $0 |
| May 15, 2026 | Jorge Titinger | Grant A | 1.4K | $0 |
| May 15, 2026 | Thomas St Dennis | Grant A | 1.4K | $0 |
| May 15, 2026 | Necip Sayiner | Grant A | 1.4K | $0 |
| May 15, 2026 | Gregory B Graves | Grant A | 1.4K | $0 |
| May 15, 2026 | John T Kurtzweil | Grant A | 1.4K | $0 |
| May 15, 2026 | Todd Sutton | Other F | 103 | $16.0K |
| May 15, 2026 | Todd Sutton | Other F | 112 | $17.4K |
| May 15, 2026 | Todd Sutton | Other F | 226 | $35.1K |
| May 15, 2026 | Todd Sutton | Grant A | 1.2K | $0 |
| May 15, 2026 | David Ryzhik KEY | Other F | 226 | $35.1K |
| May 15, 2026 | David Ryzhik KEY | Grant A | 3.1K | $0 |
| May 15, 2026 | Robert John Mahoney | Other F | 61 | $9.5K |
| May 15, 2026 | Robert John Mahoney | Other F | 170 | $26.4K |
| May 15, 2026 | Robert John Mahoney | Other F | 173 | $26.8K |
| May 15, 2026 | Robert John Mahoney | Other F | 372 | $57.7K |
| May 15, 2026 | Robert John Mahoney | Grant A | 1.9K | $0 |
| May 15, 2026 | Christopher Tatnall | Other F | 170 | $26.4K |
| May 15, 2026 | Christopher Tatnall | Other F | 345 | $53.5K |
| May 15, 2026 | Christopher Tatnall | Other F | 744 | $115.5K |
| May 15, 2026 | Christopher Tatnall | Grant A | 3.5K | $0 |
| May 15, 2026 | Gerald M Blumenstock | Other F | 345 | $53.5K |
| May 15, 2026 | Gerald M Blumenstock | Other F | 744 | $115.5K |
| May 15, 2026 | Gerald M Blumenstock | Grant A | 2.7K | $0 |
| May 15, 2026 | Greg Redinbo | Other F | 177 | $27.5K |
| May 15, 2026 | Greg Redinbo | Other F | 210 | $32.6K |
| May 15, 2026 | Greg Redinbo | Other F | 452 | $70.1K |
| May 15, 2026 | Greg Redinbo | Grant A | 3.1K | $0 |
| May 15, 2026 | Eileen Evans | Other F | 867 | $134.5K |
| May 15, 2026 | Eileen Evans | Grant A | 3.9K | $0 |
| May 15, 2026 | Russell Low KEY | Other F | 1.5K | $225.5K |
| May 15, 2026 | Russell Low KEY | Other F | 1.7K | $267.2K |
| May 15, 2026 | Russell Low KEY | Other F | 3.7K | $576.6K |
| May 15, 2026 | Russell Low KEY | Grant A | 19.5K | $0 |
| May 14, 2026 | Todd Sutton | Sell S | 2.6K | $421.9K |
| May 14, 2026 | Gerald M Blumenstock | Sell S | 1.0K | $164.7K |
| May 13, 2026 | Greg Redinbo | Sell S | 2.9K | $463.7K |
| May 13, 2026 | Jorge Titinger | Sell S | 2.0K | $328.3K |
| May 12, 2026 | Robert John Mahoney | Sell S | 2.3K | $363.5K |
| May 6, 2026 | Russell Low KEY 10b5-1 | Sell S | 7.5K | $1.2M |
| May 1, 2026 | Russell Low KEY 10b5-1 | Sell S | 1.2K | $172.7K |
| Apr 20, 2026 | Christopher Tatnall | Other F | 907 | $118.8K |
| Apr 1, 2026 | Russell Low KEY 10b5-1 | Sell S | 1.2K | $117.0K |
| Mar 24, 2026 | Russell Low KEY 10b5-1 | Sell S | 1.2K | $112.0K |
| Mar 2, 2026 | Robert John Mahoney | Other F | 573 | $49.6K |
| Mar 2, 2026 | Christopher Tatnall | Other F | 1.1K | $97.1K |
| Mar 2, 2026 | Gerald M Blumenstock | Other F | 1.1K | $97.1K |
| Mar 2, 2026 | Greg Redinbo | Other F | 723 | $62.6K |
| Mar 2, 2026 | James Gordon Coogan KEY | Other F | 1.8K | $155.8K |
| Mar 2, 2026 | Russell Low KEY | Other F | 5.2K | $452.6K |
| Feb 20, 2026 | Jorge Titinger | Sell S | 1.0K | $80.0K |
| Jan 15, 2026 | Robert John Mahoney | Grant A | 1.7K | $0 |
About ACLS insider trading
This page tracks insider transactions for AXCELIS TECHNOLOGIES INC (ACLS) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.