InsidersTradesSigma
Total declarations
Company
▲ Purchases (2 ops.)
▼ Sales (1 ops.)
Insider track record
Board DirectorDisclosed buys
2
Disclosed sells
1
T+90 hit rate
0%
T+90 mean return
-24.7%
Across 2 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the complete record of transactions filed by Fountain Nathan B, Director. Officer active across 1 company, notably Acumen Pharmaceuticals, Inc.. Aggregated, 4 disclosures have been recorded. Split: 2 buys · 1 sell. Total volume traded: €169k. History available since 6 July 2021. The latest transaction was disclosed on 3 June 2026 (Attribution). Regulator: SEC (Form 4). The full history is free.
Declarations4 total
6,400 sharesCommon StockSEC:0001628280-26-042280:0
35,500 shares0Common StockSEC:0001628280-26-041281:0
6,250 shares@ US$16.000.051% mcap50.0% of flowCommon StockSEC:0001209191-21-046026:0
Ideal exit: 2 Apr 2022 (T+270)
6,250 shares@ US$16.0050.0% of flowCommon StockSEC:0001209191-21-046026
Ideal exit: 2 Apr 2022 (T+270)
4 of 4 declarations
About Fountain Nathan B
Nathan B. Fountain is a Board Member at Acumen Pharmaceuticals, Inc. He plays a key role in the governance of the company, contributing to strategic decision-making and the overall direction of the organization. His experience is valuable for Acumen.
