Axcelis Technologies, Inc.
Axcelis Technologies, Inc. (ACLS) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · ACLS · as of Jun 8, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
22
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Axcelis Technologies, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
ACLS insider buying and selling by quarter
ACLS insider selling · ACLS insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · ACLS ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
ACLS executive sell shares · ACLS board member insider trading · ACLS insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Jun 3, 2026 | Sayiner Necip Director | Sale | 1,586 | $250K | Form 4 |
| May 27, 2026 | Sutton Todd VP Corporate Controller | Sale | 2,000 | $320K | Form 4 |
| May 22, 2026 | St Dennis Thomas Director | Sale | 900 | $140K | Form 4 |
| May 22, 2026 | Evans Eileen EVP, General Counsel and Sec'y | Sale | 926 | $144K | Form 4 |
| May 21, 2026 | Blumenstock Gerald M EVP, Research, Dev. & Eng. | Sale | 1,161 | $177K | Form 4 |
| May 20, 2026 | Tatnall Christopher EVP Global Customer Operations | Sale | 1,166 | $175K | Form 4 |
| May 19, 2026 | GRAVES GREGORY B Director | Sale | 2,625 | $371K | Form 4 |
| May 19, 2026 | GRAVES GREGORY B Director | Sale | 600 | $86K | Form 4 |
| May 19, 2026 | KURTZWEIL JOHN T Director | Sale | 3,500 | $486K | Form 4 |
| May 19, 2026 | Quirk Jeanne Director | Sale | 1,789 | $251K | Form 4 |
| May 18, 2026 | Sutton Todd VP Corporate Controller | Other | 184 | $27K | Form 4 |
| May 18, 2026 | Mahoney Robert John EVP Global Operations | Other | 182 | $27K | Form 4 |
| May 18, 2026 | Mahoney Robert John EVP Global Operations | Other | 130 | $19K | Form 4 |
| May 18, 2026 | Redinbo Greg EVP MARKETING AND APPLICATIONS | Other | 111 | $16K | Form 4 |
| May 18, 2026 | Redinbo Greg EVP MARKETING AND APPLICATIONS | Other | 79 | $12K | Form 4 |
| May 18, 2026 | Low Russell PRESIDENT AND CEO · Director | Other | 711 | $104K | Form 4 |
| May 15, 2026 | Sutton Todd VP Corporate Controller | Award | 1,168 | — | Form 4 |
| May 15, 2026 | Sutton Todd VP Corporate Controller | Other | 226 | $35K | Form 4 |
| May 15, 2026 | Sutton Todd VP Corporate Controller | Other | 112 | $17K | Form 4 |
| May 15, 2026 | Sutton Todd VP Corporate Controller | Other | 103 | $16K | Form 4 |
| May 15, 2026 | Ryzhik David SVP Interim CFO | Award | 3,115 | — | Form 4 |
| May 15, 2026 | Ryzhik David SVP Interim CFO | Other | 226 | $35K | Form 4 |
| May 15, 2026 | Mahoney Robert John EVP Global Operations | Award | 1,947 | — | Form 4 |
| May 15, 2026 | Mahoney Robert John EVP Global Operations | Other | 372 | $58K | Form 4 |
| May 15, 2026 | Mahoney Robert John EVP Global Operations | Other | 173 | $27K | Form 4 |
Sutton Todd
VP Corporate Controller
Date
May 27
Shares
2,000
Price
$159.99
Value
$320K
Evans Eileen
EVP, General Counsel and Sec'y
Date
May 22
Shares
926
Price
$155.51
Value
$144K
Blumenstock Gerald M
EVP, Research, Dev. & Eng.
Date
May 21
Shares
1,161
Price
$152.70
Value
$177K
Tatnall Christopher
EVP Global Customer Operations
Date
May 20
Shares
1,166
Price
$149.75
Value
$175K
Sutton Todd
VP Corporate Controller
Date
May 18
Shares
184
Price
$146.24
Value
$27K
Mahoney Robert John
EVP Global Operations
Date
May 18
Shares
182
Price
$146.24
Value
$27K
Mahoney Robert John
EVP Global Operations
Date
May 18
Shares
130
Price
$146.24
Value
$19K
Redinbo Greg
EVP MARKETING AND APPLICATIONS
Date
May 18
Shares
111
Price
$146.24
Value
$16K
Redinbo Greg
EVP MARKETING AND APPLICATIONS
Date
May 18
Shares
79
Price
$146.24
Value
$12K
Low Russell
PRESIDENT AND CEO · Director
Date
May 18
Shares
711
Price
$146.24
Value
$104K
Sutton Todd
VP Corporate Controller
Date
May 15
Shares
226
Price
$155.18
Value
$35K
Sutton Todd
VP Corporate Controller
Date
May 15
Shares
112
Price
$155.18
Value
$17K
Sutton Todd
VP Corporate Controller
Date
May 15
Shares
103
Price
$155.18
Value
$16K
Mahoney Robert John
EVP Global Operations
Date
May 15
Shares
1,947
Price
—
Value
—
Mahoney Robert John
EVP Global Operations
Date
May 15
Shares
372
Price
$155.18
Value
$58K
Mahoney Robert John
EVP Global Operations
Date
May 15
Shares
173
Price
$155.18
Value
$27K
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About ACLS insider trading
ACLS insider trades
Axcelis Technologies, Inc. (ACLS) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Mahoney Robert John (EVP Global Operations), Redinbo Greg (EVP MARKETING AND APPLICATIONS), Low Russell (PRESIDENT AND CEO · Director). Over the past 12 months, 5 insiders have filed transactions with the SEC. ACLS insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Axcelis Technologies, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
ACLS insider trading · 5 questionsThe insiders of Axcelis Technologies, Inc. (ACLS) include executives and directors such as Mahoney Robert John (EVP Global Operations), Redinbo Greg (EVP MARKETING AND APPLICATIONS), Low Russell (PRESIDENT AND CEO · Director), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026