David Sponsel

EVP, SALES

David Sponsel (EVP, SALES) filed 4 Form 4 reports in the trailing twelve months (0 purchases, 4 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.

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Return, 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

0 buys · 4 sells

Median delay

–

execution → disclosure

Volume, ttmiDollar value disclosed in the trailing twelve months

$4.5M

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 4 filings

Sector per market data · by filing · past 12 months

Most traded names

ATEC

Alphatec Holdings, Inc. ATEC · 0 buys · 10 sells 10 filings

Recent filings

ATECSALE Alphatec Holdings, Inc. View filing → $2.0M
163,452 sh × $12.52
Exec Mar 11
Filed Mar 13 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. View filing → $833K
60,425 sh × $13.79
Exec Feb 5
Filed Feb 6 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. View filing → $439K
21,106 sh × $20.79
Exec Dec 10 2025
Filed Dec 12 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. View filing → $1.1M
70,000 sh × $16.18
Exec Oct 24 2025
Filed Oct 28 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. View filing → $2.1M
137,445 sh × $15.09
Exec Sep 18 2025
Filed Sep 19 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. View filing → $365K
33,732 sh × $10.83
Exec Mar 6 2025
Filed Mar 10 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. View filing → $341K
32,365 sh across 2 lots
Exec Feb 24 2025
Filed Feb 26 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. View filing → $414K
36,256 sh × $11.42
Exec Feb 3 2025
Filed Feb 4 2025 · 5:30 PM ET More filings →