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buyModerate

Keith Valentine bought $996k of ATEC

director at Alphatec Holdings, Inc.. 135,000 shares at an average of $7.38, traded May 7, 2026, filed May 11, 2026.

Conviction score
58
Value
$996k
135,000 shares
Holdings after
232,271
+139% from before
From 52-week low
+11%
low $6.99, close $7.75
From 52-week high
-66%
high $22.68, as of May 7, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $996k at market
    +25
  • Relative to holdings
    Holdings up 139%
    +10
  • Price context
    66% below the 52-week high
    +8
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

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 May 11, 2026: +52.6%SPY +5.8% · excess +46.8%

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 0001289408-26-000002, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 7, 2026POpen-market purchase
Common Stock
+56,153$7.49$421k153,424May 11, 2026
May 8, 2026POpen-market purchase
Common Stock
+43,847$7.54$331k197,271May 11, 2026
May 11, 2026POpen-market purchase
Common Stock
+35,000$7.00$245k232,271May 11, 2026

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%
12Weak
ATECsell10b5-1
Alphatec Holdings, Inc.
Karen K McGinnis
director
$48k
6,050 shares
-6%
47Moderate
ATECsell 510b5-1
Alphatec Holdings, Inc.
John Todd Koning
CHIEF FINANCIAL OFFICER
$986k
79,789 shares
-12%
65Notable
ATECsell 5
Alphatec Holdings, Inc.
Scott Lish
CHIEF OPERATING OFFICER
$3.2M
260,535 shares
-24%
40Moderate
ATECsell 510b5-1
Alphatec Holdings, Inc.
David Sponsel
EVP, SALES
$2.0M
163,452 shares
-24%
35Weak
ATECsell 510b5-1
Alphatec Holdings, Inc.
Craig E Hunsaker
EVP, PEOPLE & CULTURE
$1.4M
116,367 shares
-6%
40Moderate
ATECsell 510b5-1
Alphatec Holdings, Inc.
Tyson Eliot Marshall
GENERAL COUNSEL & CORP. SEC.
$1.1M
88,835 shares
-14%
31Weak
ATECsell 210b5-1
Alphatec Holdings, Inc.
David Sponsel
EVP, SALES
$833k
60,425 shares
-15%
22Weak
ATECsell 210b5-1
Alphatec Holdings, Inc.
Craig E Hunsaker
EVP, PEOPLE & CULTURE
$550k
37,358 shares
-3%
30Weak
ATECsell10b5-1
Alphatec Holdings, Inc.
Patrick Miles
CEO
$2.1M
100,000 shares
-2%

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.

Keith Valentine bought $996k of ATEC | InsiderTell