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sellWeak cluster of 510b5-1 plan

Karen K McGinnis sold $470k of ATEC

director at Alphatec Holdings, Inc.. 38,320 shares at an average of $12.26, traded Mar 3, 2025, filed Mar 4, 2025.

Warning score
37
Value
$470k
38,320 shares
Holdings after
57,541
-40% from before
From 52-week low
+146%
low $4.98, close $12.27
From 52-week high
-2%
high $12.53, as of Mar 3, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $470k at market
    +17
  • Share of holdings sold
    Sold 40% of holdings
    +10
  • Cluster
    5 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

ATECOct 9, 2026 · close 10.67
Since filing Mar 4, 2025: -9.0%SPY +37.6% · excess -46.7%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001415889-25-006740, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 3, 2025SOpen-market sale
Common Stock10b5-1
-38,320$12.26$470k57,541Mar 4, 2025

Related signals

Other insiders at Alphatec Holdings, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
58Moderate
ATECbuy
Alphatec Holdings, Inc.
Patrick Miles
CEO
$1.0M
115,000 shares
+2%
33Weak
ATECsell 210b5-1
Alphatec Holdings, Inc.
David Sponsel
EVP, SALES
$2.1M
140,000 shares
-21%
55Moderate
ATECsell 3
Alphatec Holdings, Inc.
Mortimer Berkowitz III
director
$998k
62,500 shares
-9%
45Moderate
ATECsell 310b5-1
Alphatec Holdings, Inc.
Patrick Miles
CEO
$4.7M
300,000 shares
-5%
18Weak
ATECsell 210b5-1
Alphatec Holdings, Inc.
Scott Lish
CHIEF OPERATING OFFICER
$101k
6,323 shares
-1%
26Weak
ATECsell 310b5-1
Alphatec Holdings, Inc.
Scott Lish
CHIEF OPERATING OFFICER
$149k
9,302 shares
-1%
34Weak
ATECsell 310b5-1
Alphatec Holdings, Inc.
Craig E Hunsaker
EVP, PEOPLE & CULTURE
$917k
60,876 shares
-4%
26Weak
ATECsell 310b5-1
Alphatec Holdings, Inc.
Tyson Eliot Marshall
GENERAL COUNSEL & CORP. SEC.
$424k
30,970 shares
-7%
39Weak
ATECsell 310b5-1
Alphatec Holdings, Inc.
Scott Lish
CHIEF OPERATING OFFICER
$952k
70,604 shares
-9%
15Weak
ATECsell 210b5-1
Alphatec Holdings, Inc.
Scott Lish
CHIEF OPERATING OFFICER
$48k
3,982 shares
-1%

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.

Karen K McGinnis sold $470k of ATEC | InsiderTell