InsidersTradesSigma
Total declarations
Companies
▲ Purchases (3 ops.)
▼ Sales (0 ops.)
Insider track record
Board DirectorDisclosed buys
3
Disclosed sells
0
T+90 hit rate
0%
T+90 mean return
-24.7%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the complete record of transactions filed by Stalfort John A III, Director. Insider active across 4 companies, notably Acumen Pharmaceuticals, Inc.. Aggregated, 8 filings have been recorded. Split: 3 buys · 0 sell. Total volume traded: €809k. Activity tracked since 5 July 2022. The latest transaction was disclosed on 3 June 2026 (Attribution). Regulator: SEC (Form 4). All data is accessible without signup.
Declarations8 total
35,500 shares0Common StockSEC:0001628280-26-041273:0
12,800 shares0Common StockSEC:0001576885-25-000082:0
56,623 shares0Common StockSEC:0001415889-25-015574:0
1,123,595 sharesCommon StockSEC:0001415889-24-027710:0
Ideal exit: 19 Aug 2025 (T+270)
49,220 shares0Common StockSEC:0001415889-24-015041:0
388,889 shares@ US$0.90100.0% of flowCommon StockSEC:0001209191-23-046152:0
Ideal exit: 12 May 2024 (T+270)
238,095 shares@ US$2.10100.0% of flowCommon StockSEC:0001209191-22-040591:0
Ideal exit: 1 Apr 2023 (T+270)
130,180 sharesCommon StockSEC:0001209191-21-046030:0
8 of 8 declarations
About Stalfort John A III
John A. Stalfort III is a Board Member at Acumen Pharmaceuticals, Inc. He actively participates in the governance of the company, bringing his expertise to guide strategic decisions. His role is essential for the development and growth of Acumen.
