InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
ExecutiveDisclosed buys
0
Disclosed sells
0
T+90 hit rate
30%
T+90 mean return
-3.7%
Across 10 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 SMITH J. JEFFERSON, Chief Research Officer. Officer active across 1 company, notably Precision Biosciences INC. Cumulatively, 11 disclosures have been published. History available since 28 February 2023. The latest transaction was filed on 17 February 2026 (Levée d'options). Regulator: SEC (Form 4). All data is accessible without signup.
Declarations11 total
16,667 shares0Common StockSEC:0001628280-26-009801
16,667 shares0Common StockSEC:0001628280-26-009801:0
519 sharesCommon StockSEC:0000950170-25-034010:0
29,168 sharesCommon StockSEC:0000950170-25-008011:0
163 sharesCommon StockSEC:0000950170-24-072049:0
833 shares@ US$12.0027.7% of flowCommon StockSEC:0000950170-24-056139:0
1,006 shares@ US$12.4234.3% of flowCommon StockSEC:0000950170-24-053114:0
75,015 sharesCommon StockSEC:0001209191-24-002113:0
5,175 shares@ US$0.395.5% of flowCommon StockSEC:0001209191-23-048145:0
4,872 sharesCommon StockSEC:0001209191-23-035790:0
12,157 shares@ US$0.9532.4% of flowCommon StockSEC:0001209191-23-016842:0
11 of 11 declarations
About SMITH J. JEFFERSON
J. Jefferson Smith is Chief Research Officer at Precision Biosciences Inc. He is responsible for leading the company's research and development efforts, aiming to innovate in the biotechnology field. His role involves overseeing research projects, managing scientific teams, and collaborating with external partners to advance Precision Biosciences' initiatives.
