InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (3 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
3
T+90 hit rate
100%
T+90 mean return
+40.3%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the full record of transactions filed by Blumenstock Gerald M, Directeur Exécutif, Recherche, Développement et Ingénierie. Insider active across 1 company, notably Axcelis Technologies INC. Aggregated, 14 reports have been recorded. Split: 0 buy · 3 sells. Total volume traded: €526k. Activity tracked since 15 June 2023. The latest transaction was filed on 21 May 2026 (Cession). Regulator: SEC (Form 4). All data is free.
Declarations14 total
506 sharesCommon StockSEC:0001979418-26-000010:0
1,161 shares@ US$152.700.0033% mcap22.1% of flowCommon StockSEC:0001979418-26-000008:0
2,725 shares0Common StockSEC:0001979418-26-000006:0
2,725 shares0Common StockSEC:0001979418-26-000006:1
744 shares@ US$155.180.0021% mcap14.4% of flowCommon StockSEC:0001979418-26-000006:2
345 shares@ US$155.180.0010% mcap6.7% of flowCommon StockSEC:0001979418-26-000006:3
1,015 shares@ US$162.3150.0057% mcap50.0% of flowCommon StockSEC:0001979418-26-000004:0
3,034 shares@ US$89.46Common StockSEC:0001979418-25-000004:0
506 shares@ US$68.964.4% of flowCommon StockSEC:0001415889-25-017561:0
6,148 shares0Common StockSEC:0001415889-25-013643:0
748 shares@ US$54.795.7% of flowCommon StockSEC:0001415889-25-006551:0
308 shares@ US$138.025.7% of flowCommon StockSEC:0001415889-24-017399:0
2,849 shares0Common StockSEC:0001415889-24-013229:0
4,182 shares0Common StockSEC:0001209191-23-037305:0
14 of 14 declarations
About Blumenstock Gerald M
Gerald M. Blumenstock is Executive Vice President, Research, Development, and Engineering at AXCELIS TECHNOLOGIES INC. He oversees research and development initiatives and product engineering. With a strong background in the technology sector, he plays a key role in innovation and the development of new products.
