SEC Insider Transactions from Chiu Tzu Yin.

Last updated: 2026-03-16 13:01 UTC | Total transactions: 7

Chiu Tzu Yin has filed 7 insider transactions across 1 company since February 2023.

Most recent transaction: a grant/award of 3586 shares of AXCELIS TECHNOLOGIES INC ($ACLS) on May 15, 2025.

Activity breakdown: 0 open-market purchases and 3 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
May 15, 2025 AXCELIS TECHNOLOGIES INC $ACLS Chiu Tzu Yin Not found A Common Stock 3586 $0.00 10,403.0000 32,335,000 52.60% 0.01%
May 15, 2024 AXCELIS TECHNOLOGIES INC $ACLS Chiu Tzu Yin Not found A Common Stock 1662 $0.00 6,817.0000 32,926,000 32.24% 0.01%
May 15, 2024 AXCELIS TECHNOLOGIES INC $ACLS Chiu Tzu Yin Not found A Common Stock 1162 $0.00 6,317.0000 32,926,000 22.54% 0.00%
May 16, 2023 AXCELIS TECHNOLOGIES INC $ACLS Chiu Tzu Yin Director S Common Stock 15000 $129.50 5,155.0000 33,293,000 74.42% 0.05%
May 15, 2023 AXCELIS TECHNOLOGIES INC $ACLS Chiu Tzu Yin Director A Common Stock 1282 $0.00 20,155.0000 33,293,000 6.79% 0.00%
May 9, 2023 AXCELIS TECHNOLOGIES INC $ACLS Chiu Tzu Yin Director S Common Stock 10000 $118.50 18,873.0000 33,293,000 34.63% 0.03%
Feb. 1, 2023 AXCELIS TECHNOLOGIES INC $ACLS Chiu Tzu Yin Director S Common Stock 1700 $127.12 28,873.0000 33,542,000 5.56% 0.01%