ACLS
AXCELIS TECHNOLOGIES INCMarquee-fund ownership over time
This quarter's activity
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Bridgewater Associates re-entered | Q3 2024 | 7Q | $110 | $146 | +33% |
| Citadel Advisors | Q3 2024(8Q snapshot) | 7Q | $110 | $146 | +33% |
| D.E. Shaw | Q3 2024(8Q snapshot) | 7Q | $110 | $146 | +33% |
| AQR Capital Management | Q3 2024(8Q snapshot) | 7Q | $110 | $146 | +33% |
| Millennium Management | Q3 2024(8Q snapshot) | 7Q | $110 | $146 | +33% |
| Two Sigma Investments | Q4 2024(8Q snapshot) | 6Q | $79 | $146 | +85% |
| Point72 Asset Management | Q2 2026(8Q snapshot) | 1Q | $155 | $146 | -6% |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Past holders
Funds that exited at some point| Fund | Last entry | Exited | Entry → Exit | Return |
|---|---|---|---|---|
| Renaissance Technologies 2× in & out | Q1 2026 | Q2 2026 | → $162 | +79% |
| Maverick Capital 2× in & out | Q4 2022 | Q4 2023 | → $138 | +80% |
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at AXCELIS TECHNOLOGIES INC. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from Jun 4, 2026 — the most recent Form 4 on file — not from today.
- Form 40001338515-26-000004Jun 4, 2026
- Form 40002101601-26-000012Jun 3, 2026
- Form 40002124265-26-000010May 28, 2026
- Form 40001339595-26-000008May 26, 2026
- Form 40001715912-26-000005May 22, 2026
- Form 40001979418-26-000008May 22, 2026
- Form 40001990732-26-000008May 21, 2026
- Form 40001208109-26-000004May 20, 2026
- Form 40001184588-26-000004May 20, 2026
- Form 40001908822-26-000004May 20, 2026
- Form 40002124265-26-000008May 20, 2026
- Form 40002101601-26-000010May 20, 2026
- Form 40001940017-26-000008May 20, 2026
- Form 40001689237-26-000014May 20, 2026
- Form 40002124265-26-000006May 19, 2026
Fundamentals
XBRL · AXCELIS TECHNOLOGIES INCAnnual figures sourced directly from AXCELIS TECHNOLOGIES INC's 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for AXCELIS TECHNOLOGIES INC — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 10-QQuarterly reportMay 8, 2026
- 8-KFORM 8-KMay 7, 2026
- 8-KFORM 8-KMay 6, 2026
- DEF 14AFORM- DEF 14AMar 31, 2026
- 8-KFORM 8-KMar 12, 2026
- 10-KAnnual reportFeb 26, 2026
- 8-KFORM 8-KFeb 17, 2026
- 8-KFORM 8-KFeb 6, 2026
- 8-KFORM 8-KFeb 2, 2026
- 8-KFORM 8-KJan 28, 2026
- S-4/ARegistration (M&A, amended)Dec 29, 2025
- S-4Registration (M&A)Dec 8, 2025
- 10-QQuarterly reportNov 6, 2025
- 8-KFORM 8-KNov 4, 2025
- 8-KFORM 8-KOct 1, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Bridgewater Associates | Q2 2026 | open | $155 | $156 | +0% |
| Point72 Asset Management | Q2 2026 | open | $155 | $146 | -6% |
| Renaissance Technologies | Q1 2026 | Q2 2026 | $91 | $162 | +79% |
| Bridgewater Associates | Q4 2025 | Q1 2026 | $83 | $95 | +14% |
| Two Sigma Investments | Q4 2024 | open | $79 | $146 | +85% |
| Renaissance Technologies | Q4 2024 | Q4 2025 | $80 | $83 | +4% |
| Bridgewater Associates | Q3 2024 | Q2 2025 | $110 | $63 | -43% |
| Citadel Advisors | Q3 2024 | open | $110 | $146 | +33% |
| D.E. Shaw | Q3 2024 | open | $110 | $146 | +33% |
| AQR Capital Management | Q3 2024 | open | $110 | $146 | +33% |
| Millennium Management | Q3 2024 | open | $110 | $146 | +33% |
| Maverick Capital | Q4 2022 | Q4 2023 | $76 | $138 | +80% |
| Maverick Capital | Q1 2022 | Q2 2022 | $66 | $56 | -15% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.