DS
David Sponsel (EVP, SALES) filed 3 Form 4 reports in the trailing twelve months (0 purchases, 3 sales), most often in Alphatec Holdings, Inc. (ATEC). The largest single filing was $2.0M of ATEC (163,452 sh × $12.52, as filed), executed Mar 11. 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
3
0 buys · 3 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$3.3M
shares × price, as filed
Last traded
Mar 11
Filed Mar 13
Median ADV $21.7M across their filed names
Open performance→Volume by month
Buys $0
Sells $8.9M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
3 filings
Sector per market data · by filing · past 12 months
Most traded names
ATECRecent filings
ATECSALE
Alphatec Holdings, Inc.
View filing →
$624K58,283 sh × $10.71
Exec Jan 13 2025
Filed Jan 14 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. View filing → $601K
62,018 sh × $9.69
Exec Dec 11 2024
Filed Dec 13 2024 · 5:30 PM ET