Company profile
Axcelis Technologies Inc Insider Trading
ACLSEvery SEC Form 4 insider trading filing for Axcelis Technologies Inc (ACLS) since April 2023: open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Special Industry Machinery, NEC
- CIK
- 0001113232
- Filings
- 193
- Insiders
- 22
- Last filing
- 2026-09-15
Activity summary
No discretionary insider buying or selling in the last 30 days. The 2 transactions filed were grants, option exercises or other non-open-market activity.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Axcelis Technologies Inc insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $8.1M.
90 day insight
Over the last 90 days, Axcelis Technologies Inc insiders filed 4 Form 4 transactions, none of which were open-market purchases or sales.
- Most active insider: David Ryzhik with 2 transactions totaling $32K.
Activity skews bullish: buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 15, 2026 | Greg Redinbo | ACLS | Tax Withholding | 208 | $105.04 | $22K |
| Sep 15, 2026 | Christopher Tatnall | ACLS | Tax Withholding | 136 | $105.04 | $14K |
| Jul 15, 2026 | David Ryzhik | ACLS | Tax Withholding | 127 | $145.01 | $18K |
| Jul 15, 2026 | David Ryzhik | ACLS | Tax Withholding | 94 | $145.01 | $14K |
| Jun 16, 2026 | David Ryzhik | ACLS | Tax Withholding | 76 | $176.84 | $13K |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
curl "https://api.form4api.com/v1/transactions?ticker=ACLS" \
-H "X-Api-Key: $KEY"Top insiders
By open-market value traded.
Institutional Ownership
Top 13F-HR holders of Axcelis Technologies Inc as of 2026-06-30
Data source: quarterly 13F-HR filings: institutional holders report positions within 45 days of quarter end. Joined with insider activity above: see who's loading up institutionally while insiders are trading. Full 13F-HR API →