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Insider Cluster (3 insiders) ·Filed Mar 11, 2026

ATEC

Alphatec Holdings, Inc.
BEARISH
Impact 7/10
Horizondays Processed7mo ago
Insider cluster: 2 insiders, $5.3M total
Actionable Insight ▼ Bearish

Traders should monitor for potential downward pressure on ATEC shares, especially if no offsetting corporate developments are announced. The concentration of C-suite selling suggests possible lack of confidence in near-term valuation or upcoming headwinds.

DirectionBearish
Confidencehigh
Horizondays
Final — all horizons settled through T+60d
ATEC ▼ -39.34% at T+60d
SHORT call ✓ call won +39.34% · α vs SPY +50.86% · entry $12.66 → $7.68
Entry = T+0 close
Mar 10, 2026
via day close
T+1d
-1.26%
call +1.26% · α -0.22%
$12.50
settled 8mo ago
T+5d
-0.79%
call +0.79% · α -1.40%
$12.56
settled 7mo ago
T+20d
-12.56%
call +12.56% · α +13.08%
$11.07
settled 7mo ago
T+60d
-39.34%
call +39.34% · α +50.86%
$7.68
settled 5mo ago

Price Chart

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Executive Summary

Three senior executives at Alphatec Holdings — the COO, CFO, and EVP of Sales — sold shares in a coordinated open-market transaction cluster totaling $6.24 million over a 3-day window. The sales represent a material insider divestment by C-suite leadership at market prices near $12.30–$12.52 per share.

Key Financial Metrics

Direction
selling
Total Value
$6.2M
Insiders
3

Key Facts

  • Chief Operating Officer Lish Scott sold 260,535 shares for $3.20M in open-market transactions on March 13, 2026.
  • Chief Financial Officer Koning John Todd sold 79,789 shares for $986K on March 13, 2026.
  • EVP of Sales David Sponsel sold 163,452 shares for $2.05M on March 11, 2026.
  • All transactions were open-market sales (Form 4 code 'S'), indicating deliberate cash realization.
  • Total cluster value: $6.24 million, representing ~0.33% of ATEC's $1.9B market cap.

Financial Impact

$6.24 million in insider sales over 7 days, with all sellers being C-suite executives

insider ownershipinvestor sentimentshareholder dilution risk (if proceeds used for corporate purposes)

Risk Factors

  • Perceived lack of confidence from top management could erode investor sentiment.
  • Potential for follow-on selling if other insiders exit positions.
  • Risk of negative interpretation ahead of earnings or regulatory milestones.

Market Snapshot

Exchange
Nasdaq

Investment Themes

Healthcare & Medical Devices

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CONTEXT: Insider Cluster Data (3 trades, 7d window)cluster-ATEC-1773783029830
7 reports for ATEC
Performance horizon
67% Hit rate @ T+60 2 of 3 directional calls Went positive at some point 3 of 5 best @ T+60▲ +40.49%Mar 5, 2026
Filters
Rows
Reports for ATEC — sortable, filterable
TypeNow
Sep 10, 2026
6w ago
Insider Buy
BULLISH ★ 5/10
$10.58awaiting T+60—$10.90 (+3.02%)
Aug 4, 2026
11w ago
Institutional Cluster
BULLISH ★ 5/10
$10.35awaiting T+60—$10.90 (+5.31%)
Jun 11, 2026
19w ago
144
NEUTRAL ★ 2/10
$8.13 $9.45▲ +16.24%▲ +11.84%$10.90 (+34.07%)
Jun 11, 2026
19w ago
Institutional Cluster
BULLISH ★ 5/10
$8.13 $9.45▲ +16.24%▲ +11.84%$10.90 (+34.07%)
Mar 11, 2026
32w ago
Insider Cluster
BEARISH ★ 7/10
$12.66 $7.68▲ +39.34%▲ +50.86%$10.90 (+13.90%)
Mar 5, 2026
33w ago
Insider Cluster
BEARISH ★ 6/10
$12.57 $7.48▲ +40.49%▲ +51.79%$10.90 (+13.29%)
Feb 24, 2026
34w ago
8-K
BULLISH ★ 8/10
$14.04 $8.24▼ −41.31%▼ −48.26%$10.90 (−22.36%)
Showing 7 of 7

US Market Status

Market Closed — Opens Tue (< 1m)

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Report published Mar 17, 2026