TM
Insider
Tyson Eliot Marshall
GENERAL COUNSEL & CORP. SEC.Tyson Eliot Marshall (GENERAL COUNSEL & CORP. SEC.) 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 $1.4M of ATEC (70,000 sh × $19.51, as filed), executed Nov 20 2025.
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
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$3.0M
shares × price, as filed
Last traded
Mar 5
Filed Mar 9
Median ADV $21.7M across their filed names
Open performance→Volume by month
Buys $0
Sells $3.4M
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 →
$1.1M88,835 sh × $12.49
Exec Mar 5
Filed Mar 9 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. View filing → $492K
22,889 sh across 2 lots
Exec Dec 5 2025
Filed Dec 9 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. View filing → $1.4M
70,000 sh × $19.51
Exec Nov 20 2025
Filed Nov 21 2025 · 5:30 PM ET ATECSALE Alphatec Holdings, Inc. View filing → $424K
30,970 sh across 3 lots
Exec Aug 1 2025
Filed Aug 5 2025 · 5:30 PM ET