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Insider · CIK 0001772837

David Sponsel

officer

Files at ATEC (Alphatec Holdings, Inc.). First filing Dec 13, 2024, latest Mar 10, 2025.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 5
$0 bought, $2.3M sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

ATEC: Alphatec Holdings, Inc.

ATECOct 9, 2026 · close 10.67

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
25Weak
ATECsell 510b5-1
Alphatec Holdings, Inc.
$365k
33,732 shares
-5%+117% from low-14% from high
25Weak
ATECsell 510b5-1
Alphatec Holdings, Inc.
$341k
32,365 shares
-4%+116% from low-11% from high
26Weak
ATECsell 310b5-1
Alphatec Holdings, Inc.
$414k
36,256 shares
-5%+130% from low-5% from high
28Weak
ATECsell 210b5-1
Alphatec Holdings, Inc.
$627k
58,521 shares
-10%+100% from low-5% from high
14Weak
ATECsell10b5-1
Alphatec Holdings, Inc.
$601k
62,018 shares
-10%-

Transactions

Every row this insider has filed, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Apr 1, 2025ATEC
Alphatec Holdings, Inc.
AGrant or award
Common Stock
+3,866--672,843Apr 3, 2025
Mar 6, 2025ATEC
Alphatec Holdings, Inc.
SOpen-market sale
Common Stock10b5-1
-33,732$10.83$365k668,977Mar 10, 2025
Feb 24, 2025ATEC
Alphatec Holdings, Inc.
SOpen-market sale
Common Stock10b5-1
-12,946$10.73$139k722,128Feb 26, 2025
Feb 25, 2025ATEC
Alphatec Holdings, Inc.
SOpen-market sale
Common Stock10b5-1
-19,419$10.41$202k702,709Feb 26, 2025
Feb 3, 2025ATEC
Alphatec Holdings, Inc.
SOpen-market sale
Common Stock10b5-1
-36,256$11.42$414k735,074Feb 4, 2025
Jan 29, 2025ATEC
Alphatec Holdings, Inc.
AGrant or award
Common Stock
+133,591$0.00$0635,902Jan 31, 2025
Jan 29, 2025ATEC
Alphatec Holdings, Inc.
AGrant or award
Common Stock
+114,322$0.00$0750,224Jan 31, 2025
Jan 29, 2025ATEC
Alphatec Holdings, Inc.
AGrant or award
Common Stock
+21,106--771,330Jan 31, 2025
Jan 10, 2025ATEC
Alphatec Holdings, Inc.
SOpen-market sale
Common Stock10b5-1
-238$10.00$2,380560,594Jan 14, 2025
Jan 13, 2025ATEC
Alphatec Holdings, Inc.
SOpen-market sale
Common Stock10b5-1
-58,283$10.71$624k502,311Jan 14, 2025
Dec 11, 2024ATEC
Alphatec Holdings, Inc.
SOpen-market sale
Common Stock10b5-1
-62,018$9.69$601k560,832Dec 13, 2024

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

David Sponsel: insider trades and track record | InsiderTell