ACLS — AXCELIS TECHNOLOGIES INC

Ownership history in Magnetar Financial LLC  ·  5 quarters on record

This page tracks every 13F SEC filing in which Magnetar Financial LLC reported a position in AXCELIS TECHNOLOGIES INC (ACLS). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.06% (2023 Q4)
Avg. % of fund
0.02%
First filed
2023 Q3
Last filed
2025 Q3
Quarters held
5
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 4,618 -1,151 -20.0% 0.00% $451K $97.64
2025 Q2 REDUCED 5,769 -6,736 -53.9% 0.00% $402K $69.69
2025 Q1 REDUCED 12,505 -6,803 -35.2% 0.01% $621K $49.67
2023 Q4 ADDED 19,308 +16,230 +527.3% 0.06% $2.5M $129.69
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% of Fund (quarterly)    ACLS price (monthly, adj. close)

Other funds also holding ACLS

As of 2025 Q4 — sorted by position size

REINHART PARTNERS, LLC. 3Y 7Y 3.83% Soviero Asset Management, LP 3Y 1.77% Jackson Square Partners, LLC 3Y 7Y 1.08% Penbrook Management LLC 3Y 7Y 0.88% GLOBEFLEX CAPITAL L P 3Y 7Y 0.69% Firsthand Capital Management, Inc. 3Y 7Y 0.6% Jackson Creek Investment Advisors LLC 3Y 0.52% BlackBarn Capital Partners LP 0.51% Wakefield Asset Management LLLP 3Y 7Y 0.4% ISTHMUS PARTNERS, LLC 3Y 7Y 0.37%
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