InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
0
T+90 hit rate
33%
T+90 mean return
-10.6%
Across 3 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Discover the detailed record of transactions filed by Greiner Stacy, Director. Director active across 1 company, notably Proto Labs Inc. Aggregated, 6 filings have been published. History available since 15 November 2021. The latest transaction was filed on 23 May 2025 (Attribution). Regulator: SEC (Form 4). All data is openly available.
Declarations6 total
3,939 shares0Common StockSEC:0001628280-25-028222:0
4,701 shares0Common StockSEC:0001437749-24-018336:0
4,513 shares0Common StockSEC:0001437749-23-015291:0
3,236 shares0Common StockSEC:0001437749-22-021714:0
3,236 shares0Common StockSEC:0001437749-22-013224:0
767 shares0Common StockSEC:0001437749-21-027225:0
6 of 6 declarations
About Greiner Stacy
Stacy Greiner is a Director at Proto Labs Inc. She contributes to the governance of the company and strategic decision-making. Proto Labs specializes in rapid prototyping manufacturing. Stacy's experience in the manufacturing sector is valuable in guiding the company's direction.
