DS
Daniel Schumacher (Chief Financial Officer) filed 2 Form 4 reports in the trailing twelve months (0 purchases, 2 sales), most often in Proto Labs, Inc. (PRLB). The largest single filing was $477K of PRLB (5,000 sh × $95.32, as filed), executed Sep 24. Data as of Nov 8 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
2
0 buys · 2 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$894K
shares × price, as filed
Last traded
Sep 24
Filed Sep 25
Median ADV $18.2M across their filed names
Open performance→Volume by month
Buys $0
Sells $894K
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Industrials
2 filings
Sector per market data · by filing · past 12 months
Most traded names
PRLBRecent filings
PRLBSALE
Proto Labs, Inc.
View filing →
$477K5,000 sh × $95.32
Exec Sep 24
Filed Sep 25 · 4:11 PM ET PRLBSALE Proto Labs, Inc. View filing → $418K
4,900 sh × $85.21
Exec Sep 17
Filed Sep 18 · 4:02 PM ET