MarketPeel
Insider Trading Intelligence
Pricing
…
JK

John Todd Koning

ATEC
CHIEF FINANCIAL OFFICER · ALPHATEC HOLDINGS, INC. · CIK 0001830843
FILING MIX · LIFETIME58%/42%
BUYS
19
SELLS
14
TOTAL VALUE
$8.29M
COMPANIES
2
ACTIVE SINCE
Feb 2021
HOLDINGS NOW
602,204
AVG SELL PX
$12.40
TRADE KIND
SHOWING 33 / 33
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
9 backtested trades · 8 horizons · 5 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by John Todd Koning, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d9+33.33%+1.79%+0.57%+1.22%+2.81%—
14d9+55.56%-0.10%+0.48%-0.57%+4.16%—
30d9+44.44%+1.47%+2.42%-0.96%+2.68%—
60d9+55.56%-4.95%+4.55%-9.50%-7.74%—
90d9+55.56%-5.09%+7.02%-12.11%-9.58%—
180d9(1 pending)+50.00%-7.93%+9.84%-17.77%-14.83%—
1y9(1 pending)+50.00%-0.54%+18.42%-18.96%-22.96%—
2y9(3 pending)+83.33%-12.98%+37.16%-50.14%-62.15%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ATEC · 600,721 shares · as of Mar 13, 2026
0187,355374,710562,065749,42020222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 19 buys / 14 sellsCOVERAGE · 21 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
79,789$12.36$986.2K600,721Mar 13, 2026Mar 17, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
CHIEF FINANCIAL OFFICER
68,910$12.57$866.2K680,510Mar 5, 2026Mar 8, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
205,094——618,646Feb 25, 2026Feb 27, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
20,380——749,420Feb 25, 2026Feb 27, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
110,394——729,040Feb 25, 2026Feb 27, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
55,197——55,197Feb 25, 2026Feb 27, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
CHIEF FINANCIAL OFFICER
15,266$21.45$327.5K445,955Dec 8, 2025Dec 9, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
CHIEF FINANCIAL OFFICER
5,315$15.34$81.5K461,221Aug 6, 2025Aug 7, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
37,500$10.71$401.6K466,536Apr 22, 2025Apr 23, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
20,929——504,036Apr 1, 2025Apr 3, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
165,121$9.72$1.60M483,107Mar 10, 2025Mar 12, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
114,322——628,630Jan 29, 2025Jan 31, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
120,952——514,308Jan 29, 2025Jan 31, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
19,598——648,228Jan 29, 2025Jan 31, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
37,500$12.82$480.8K393,356Apr 24, 2024Apr 26, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
121,601$13.30$1.62M430,856Mar 1, 2024Mar 4, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
31,746——552,457Feb 21, 2024Feb 22, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
CHIEF FINANCIAL OFFICER
24,453$16.68$407.9K520,711Feb 1, 2024Feb 5, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
129,612——545,164Feb 1, 2024Feb 5, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
16,500$16.42$270.9K415,552Apr 20, 2023Apr 21, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
CHIEF FINANCIAL OFFICER
22,500$14.76$332.1K432,052Feb 27, 2023Mar 1, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
CHIEF FINANCIAL OFFICER
13,068$14.20$185.6K470,644Feb 22, 2023Feb 23, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
32,403——483,712Feb 1, 2023Feb 3, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
64,806——451,309Feb 1, 2023Feb 3, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
90,242——386,503Feb 1, 2023Feb 3, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
Chief Financial Officer
16,092$11.54$185.7K280,169Apr 28, 2022Apr 29, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
Chief Financial Officer
10,582$10.94$115.8K296,261Mar 18, 2022Mar 22, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
50,000——246,682Feb 24, 2022Feb 28, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
60,161——306,843Feb 24, 2022Feb 28, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASE
Chief Financial Officer
5,000$11.17$55.9K196,682Dec 16, 2021Dec 19, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
150,000——150,000Apr 19, 2021Apr 20, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
40,000——190,000Apr 19, 2021Apr 20, 2021 ↗View →
MASI
MASIMO CORP
PURCHASEGRANT
Stock grant
1,483$250.73$371.8K1,483Feb 26, 2021Mar 2, 2021 ↗View →
Other insiders · ATEC
Loading peer insiders…
About this filer
CIK 0001830843
ROLE
Chief Financial Officer
PRIMARY
ATEC
COMPANIES
2
ACTIVE SINCE
Feb 2021
MARKETPEEL · /INSIDER/0001830843DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback