Insider filing · ATEC
David Sponsel
EVP, SALES
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Alphatec Holdings, Inc.
ATEC · Healthcare · 66 filings in 24 months
ticker →
David Sponsel sold $2.1M of Alphatec (ATEC)
Executed Sep 18 2025, disclosed Sep 19 2025, 1 day later.
Value, as filed
$2.1M
137,445 sh × $15.09
Executed
Sep 18 2025
the trade date, as filed
Disclosed
Sep 19 2025
1 day after the trade
Return, 21 sessionsiFrom the disclosed entry session; derived
–
purchases only
Returns are measured on stock purchases only.
The filer
DSDavid 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.
The name
ATECHealthcare · Alphatec Holdings, Inc., a medical technology company, designs, develops, and advances technologies for the surgical treatment of spinal di…
More Healthcare filings→ Insider filings, newest first→ View the original filing at www.sec.gov→Other filings by David Sponsel in ATEC
ATECSALE
Alphatec Holdings, Inc.
$2.0M163,452 sh × $12.52
Exec Mar 11
Filed Mar 13 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. $833K
60,425 sh × $13.79
Exec Feb 5
Filed Feb 6 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. $439K
21,106 sh × $20.79
Exec Dec 10 2025
Filed Dec 12 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. $1.1M
70,000 sh × $16.18
Exec Oct 24 2025
Filed Oct 28 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. $365K
33,732 sh × $10.83
Exec Mar 6 2025
Filed Mar 10 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. $341K
32,365 sh across 2 lots
Exec Feb 24 2025
Filed Feb 26 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. $414K
36,256 sh × $11.42
Exec Feb 3 2025
Filed Feb 4 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. $624K
58,283 sh × $10.71
Exec Jan 13 2025
Filed Jan 14 2025 · 5:30 PM ET