InsidersTradesSigma
Total declarations
Companies
▲ Purchases (3 ops.)
▼ Sales (3 ops.)
Insider track record
Board DirectorDisclosed buys
3
Disclosed sells
3
T+90 hit rate
27%
T+90 mean return
+9.2%
Across 11 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the full record of transactions filed by BUZBY DAVID S, Director. Director active across 2 companies, notably STEM, INC.. Aggregated, 15 reports have been published. Split: 3 buys · 3 sells. Total volume traded: €3m. History available since 7 July 2021. The latest transaction was filed on 3 July 2025 (Don). Regulator: SEC (Form 4). All data is free.
Declarations15 total
5,511 shares0Common Stock, Par Value $0.0001 Per ShareSEC:0000950170-25-094535:0
5,511 shares0Common Stock, Par Value $0.0001 Per ShareSEC:0000950170-25-094535:1
23,489 shares0Common Stock, Par Value $0.0001 Per ShareSEC:0001758766-24-000135:0
20,498 shares0Common Stock, Par Value $0.0001 Per ShareSEC:0001758766-24-000130:0
33,800 shares@ US$1.811.8% of flowCommon Stock, Par Value $0.0001 Per ShareSEC:0001758766-24-000058:0
Ideal exit: 13 Dec 2024 (T+270)
62,500 shares@ US$1.843.5% of flowCommon Stock, Par Value $0.0001 Per ShareSEC:0001758766-24-000057:0
Ideal exit: 10 Dec 2024 (T+270)
40,000 sharesClass A ordinary sharesSEC:0001104659-24-007906:0
62,000 shares@ US$4.829.7% of flowCommon Stock, Par Value $0.0001 Per ShareSEC:0001758766-23-000122:0
Ideal exit: 11 Jun 2024 (T+270)
20,498 shares0Common Stock, Par Value $0.0001 Per ShareSEC:0001758766-23-000100:0
50,000 shares@ US$16.20826.5% of flowCommon Stock, Par Value $0.0001 Per ShareSEC:0001758766-22-000161:0
67,000 shares@ US$15.5133.4% of flowCommon Stock, Par Value $0.0001 Per ShareSEC:0001758766-22-000152:0
5,524 shares0Common Stock, Par Value $0.0001 Per ShareSEC:0001758766-22-000075:0
86,121 shares@ US$9.010.91% mcap91.1% of flowCommon Stock, Par Value $0.0001 Per ShareSEC:0001244203-22-000002:0
32,978 shares@ US$1.250.045% mcap4.5% of flowCommon Stock, Par Value $0.0001 Per ShareSEC:0001758766-21-000131:0
32,978 shares@ US$1.251.1% of flowCommon Stock, Par Value $0.0001 Per ShareSEC:0001758766-21-000131
15 of 15 declarations
About BUZBY DAVID S
David S. Buzby serves as a Director at STEM, Inc. As a board member, he participates in overseeing operations and strategic decision-making. His experience in the technology sector is valuable in guiding STEM's activities. David S. Buzby is committed to supporting the company's mission and objectives.
