# AXCELIS TECHNOLOGIES INC (ACLS) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 054540208
Page URL: https://superinvestorclub.com/stock/ACLS
Last updated: 2026-08-29T13:47:17.926Z

## Summary

As of the most recent 13F filing period, AXCELIS TECHNOLOGIES INC (ACLS) is held by 2 tracked superinvestors with an aggregate position value of $27.8M representing 01438502630 shares.

## Top institutional holders (2)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [First Eagle](https://superinvestorclub.com/manager/21222) | First Eagle Investment Management | 143850 | $27.3M | 0.02% | 2026-06-30 |
| 2 | [Lee Ainslie](https://superinvestorclub.com/manager/58) | Maverick Capital | 2630 | $498,254 | 0.00% | 2026-06-30 |

## Ownership history (quarter-over-quarter)

- 2023-06-30: 1 holders, $1.5M aggregate, 08198 shares
- 2023-09-30: 1 holders, $1.2M aggregate, 07278 shares
- 2024-06-30: 1 holders, $4.2M aggregate, 029493 shares
- 2024-09-30: 1 holders, $2.0M aggregate, 019045 shares
- 2024-12-31: 1 holders, $955,682 aggregate, 013678 shares
- 2025-06-30: 1 holders, $5.1M aggregate, 073000 shares
- 2025-09-30: 2 holders, $12.9M aggregate, 01303582224 shares
- 2025-12-31: 1 holders, $11.0M aggregate, 0136318 shares
- 2026-03-31: 2 holders, $10.1M aggregate, 01005518301 shares
- 2026-06-30: 2 holders, $27.8M aggregate, 01438502630 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "AXCELIS TECHNOLOGIES INC (ACLS) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/ACLS), aggregating SEC 13F, Form 4, and congressional disclosures."