Alphatec Holdings, Inc. (ATEC)

Latest Insider Confidence Score

2026Q1

43.4
Bearish

Company insider confidence (by quarter)

2013Q3 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Segal Paul Director 11,081,538 May 12, 2023
L-5 Healthcare Partners, LLC 10% Owner 11,081,538 May 12, 2023
Squadron Capital Holdings LLC 10% Owner 10,895,045 Nov 26, 2025
Squadron Capital LLC 10% Owner 10,895,045 Nov 25, 2025
Miles Patrick CEO 5,624,978 Dec 3, 2025

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 25, 2026 Feb 27, 2026 Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC. Neutral 90.0 +302,852 87.67% ✗ -
Feb 25, 2026 Feb 27, 2026 Sponsel David EVP, SALES Neutral 90.0 +318,884 91.24% ✗ -
Feb 25, 2026 Feb 27, 2026 Koning John Todd CFO Neutral 90.0 +335,868 81.22% ✗ -
Feb 25, 2026 Feb 27, 2026 Lish Scott COO Neutral 90.0 +459,480 74.50% ✗ -
Feb 25, 2026 Feb 27, 2026 Hunsaker Craig E EVP, PEOPLE & CULTURE Neutral 90.0 +459,480 33.22% ✗ -
Feb 25, 2026 Feb 27, 2026 Miles Patrick CEO Neutral 90.0 +966,293 18.26% ✗ -
Feb 12, 2026 Feb 17, 2026 Hunsaker Craig E EVP, PEOPLE & CULTURE Sell 20.0 -41,105 -2.89% ✗ $538.5K
Feb 5, 2026 Feb 6, 2026 Sponsel David EVP, SALES Sell 25.0 -60,425 -14.74% ✓ $833.3K
Feb 3, 2026 Feb 4, 2026 Hunsaker Craig E EVP, PEOPLE & CULTURE Sell 37.5 -37,358 -3.09% ✓ $549.5K
Jan 5, 2026 Jan 6, 2026 Miles Patrick CEO Sell 43.8 -100,000 -1.82% ✓ $2.1M
Dec 16, 2025 Dec 18, 2025 Lish Scott COO Sell 35.0 -19,900 -3.01% ✓ $390.8K
Dec 16, 2025 Dec 18, 2025 Pelizzon David R Director Sell 17.5 -250,000 -2.27% ✗ $4.9M
Dec 10, 2025 Dec 12, 2025 Hunsaker Craig E EVP, PEOPLE & CULTURE Sell 20.0 -32,584 -2.53% ✗ $679.1K
Dec 10, 2025 Dec 12, 2025 Sponsel David EVP, SALES Sell 35.0 -21,106 -4.58% ✓ $438.8K
Dec 11, 2025 Dec 12, 2025 Demski David M Director Sell 20.0 -30,000 -6.98% ✗ $636K
Dec 8, 2025 Dec 10, 2025 Pelizzon David R Director Sell 16.3 -250,000 -2.22% ✗ $5.3M
Dec 8, 2025 Dec 10, 2025 Squadron Capital LLC 10% Owner Sell 16.3 -250,000 -2.29% ✗ $5.3M
Dec 8, 2025 Dec 10, 2025 Koning John Todd CFO Sell 40.0 -15,266 -3.31% ✗ $327.5K
Dec 8, 2025 Dec 10, 2025 Miles Patrick CEO Sell 42.5 -28,680 -0.52% ✗ $615.2K
Dec 8, 2025 Dec 10, 2025 Sponsel David EVP, SALES Sell 51.3 -988 -0.21% ✗ $21.2K
Dec 8, 2025 Dec 10, 2025 Squadron Capital Holdings LLC 10% Owner Sell 16.3 -250,000 -2.29% ✗ $5.3M
Dec 8, 2025 Dec 10, 2025 Pritzker Jennifer N. 10% Owner Sell 16.3 -250,000 -2.28% ✗ $5.3M
Dec 5, 2025 Dec 9, 2025 Lish Scott COO Sell 22.5 -10,875 -1.62% ✗ $233.5K
Dec 5, 2025 Dec 9, 2025 Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC. Sell 30.0 -22,889 -6.21% ✓ $491.5K
Dec 1, 2025 Dec 3, 2025 Miles Patrick CEO Sell 40.0 -100,000 -1.78% ✓ $2.2M
Nov 24, 2025 Nov 26, 2025 Pritzker Jennifer N. 10% Owner Sell 16.3 -250,000 -2.23% ✗ $5.2M
Nov 24, 2025 Nov 26, 2025 Squadron Capital Holdings LLC 10% Owner Sell 16.3 -250,000 -2.24% ✗ $5.2M
Nov 24, 2025 Nov 25, 2025 Pelizzon David R Director Sell 16.3 -250,000 -2.18% ✗ $5.2M
Nov 24, 2025 Nov 25, 2025 Squadron Capital LLC 10% Owner Sell 16.3 -250,000 -2.24% ✗ $5.2M
Nov 20, 2025 Nov 21, 2025 Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC. Sell 17.5 -70,000 -15.97% ✗ $1.4M
Nov 20, 2025 Nov 21, 2025 Lish Scott COO Sell 20.0 -25,000 -3.59% ✗ $495K
Nov 12, 2025 Nov 14, 2025 Squadron Capital Holdings LLC 10% Owner Sell 16.3 -250,000 -2.19% ✗ $5.2M
Nov 12, 2025 Nov 14, 2025 Pritzker Jennifer N. 10% Owner Sell 16.3 -250,000 -2.18% ✗ $5.2M
Nov 12, 2025 Nov 14, 2025 Pelizzon David R Director Sell 16.3 -250,000 -2.13% ✗ $5.2M
Nov 12, 2025 Nov 14, 2025 Squadron Capital LLC 10% Owner Sell 16.3 -250,000 -2.19% ✗ $5.2M
Nov 3, 2025 Nov 5, 2025 Rydin Jeffrey P Director Sell 17.5 -200,000 -34.16% ✗ $3.9M
Nov 3, 2025 Nov 5, 2025 Miles Patrick CEO Sell 40.0 -100,000 -1.75% ✓ $1.9M
Oct 31, 2025 Oct 31, 2025 Hunsaker Craig E EVP, PEOPLE & CULTURE Sell 27.5 -100,000 -7.20% ✓ $2M
Oct 24, 2025 Oct 28, 2025 Sponsel David EVP, SALES Sell 20.0 -70,000 -13.16% ✓ $1.1M
Oct 14, 2025 Oct 15, 2025 Lish Scott COO Neutral 52.5 - 0.00% ✗ -
Oct 1, 2025 Oct 3, 2025 Miles Patrick CEO Sell 40.0 -100,000 -1.72% ✓ $1.4M
Sep 18, 2025 Sep 19, 2025 Sponsel David EVP, SALES Sell 10.0 -140,000 -20.84% ✓ $2.1M
Sep 9, 2025 Sep 11, 2025 Berkowitz Mortimer III Director Sell 20.0 -62,500 -4.84% ✗ $998.1K
Sep 2, 2025 Sep 4, 2025 Miles Patrick CEO Sell 32.5 -300,000 -4.90% ✓ $4.7M
Aug 21, 2025 Aug 21, 2025 Lish Scott COO Sell 47.5 -6,323 -0.95% ✓ $101.2K
Aug 13, 2025 Aug 15, 2025 Lish Scott COO Sell 45.0 -9,302 -1.38% ✓ $148.8K
Aug 14, 2025 Aug 14, 2025 Miles Patrick CEO Neutral 52.5 -10,000 -0.16% ✗ -
Aug 6, 2025 Aug 7, 2025 Sponsel David EVP, SALES Sell 51.3 -982 -0.15% ✗ $15.1K
Aug 6, 2025 Aug 7, 2025 Koning John Todd CFO Sell 42.5 -5,315 -1.14% ✗ $81.5K
Aug 5, 2025 Aug 7, 2025 Hunsaker Craig E EVP, PEOPLE & CULTURE Sell 35.0 -60,876 -4.20% ✓ $916.7K
Aug 1, 2025 Aug 5, 2025 Lish Scott COO Sell 26.3 -70,604 -9.48% ✓ $952.1K
Aug 1, 2025 Aug 5, 2025 Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC. Sell 30.0 -30,970 -6.60% ✓ $424.2K
Jul 10, 2025 Jul 14, 2025 Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC. Sell 52.5 -1,500 -0.32% ✓ $18K
Jul 10, 2025 Jul 14, 2025 Lish Scott COO Sell 51.3 -3,982 -0.53% ✓ $47.8K
Jun 13, 2025 Jun 17, 2025 Lish Scott COO Sell 38.8 -22,727 -2.95% ✓ $251.6K
Jun 11, 2025 Jun 13, 2025 MCGINNIS KAREN K Director Sell 91.3 +11,168 19.41% ✓ $48K
Jun 11, 2025 Jun 13, 2025 WOODS WARD W JR Director Neutral 67.5 +15,131 0.69% ✗ -
Jun 11, 2025 Jun 13, 2025 Valentine Keith Director Neutral 90.0 +15,131 18.42% ✗ -
Jun 11, 2025 Jun 13, 2025 Rydin Jeffrey P Director Neutral 82.5 +15,131 2.65% ✗ -
Jun 11, 2025 Jun 13, 2025 Pelizzon David R Director Neutral 55.0 +15,131 0.13% ✗ -
Jun 11, 2025 Jun 13, 2025 Demski David M Director Neutral 82.5 +15,131 3.65% ✗ -
Jun 11, 2025 Jun 13, 2025 Blackford Quentin S. Director Neutral 82.5 +15,131 2.73% ✗ -
Jun 11, 2025 Jun 13, 2025 Berkowitz Mortimer III Director Neutral 77.5 +15,131 1.19% ✗ -
Jun 4, 2025 Jun 6, 2025 Hunsaker Craig E EVP, PEOPLE & CULTURE Sell 20.0 -200,000 -12.12% ✓ $2.5M
May 19, 2025 May 21, 2025 Lish Scott COO Sell 20.0 -55,375 -6.70% ✗ $719.9K
May 5, 2025 May 6, 2025 Lish Scott COO Sell 22.5 -12,000 -1.43% ✗ $145.4K
May 5, 2025 May 6, 2025 Blackford Quentin S. Director Neutral 27.5 -21,000 -3.66% ✗ -
Apr 22, 2025 Apr 23, 2025 Koning John Todd CFO Sell 30.0 -37,500 -7.44% ✓ $401.6K
Apr 1, 2025 Apr 3, 2025 Sponsel David EVP, SALES Neutral 67.5 +3,866 0.58% ✗ -
Apr 1, 2025 Apr 3, 2025 Miles Patrick CEO Neutral 60.0 +16,475 0.27% ✗ -
Apr 1, 2025 Apr 3, 2025 Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC. Neutral 82.5 +19,848 4.40% ✗ -
Apr 1, 2025 Apr 3, 2025 Lish Scott COO Neutral 82.5 +21,751 2.66% ✗ -
Apr 1, 2025 Apr 3, 2025 Koning John Todd CFO Neutral 82.5 +20,929 4.33% ✗ -
Apr 1, 2025 Apr 3, 2025 Hunsaker Craig E EVP, PEOPLE & CULTURE Neutral 77.5 +21,751 1.34% ✗ -
Mar 10, 2025 Mar 12, 2025 Koning John Todd CFO Sell 5.0 -165,121 -25.47% ✓ $1.6M
Mar 10, 2025 Mar 12, 2025 Lish Scott COO Sell 35.0 -27,994 -3.31% ✓ $272.1K
Mar 6, 2025 Mar 10, 2025 Sponsel David EVP, SALES Sell 35.0 -33,732 -4.80% ✓ $365.3K
Mar 6, 2025 Mar 7, 2025 Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC. Sell 40.0 -27,805 -5.81% ✗ $318.1K
Mar 6, 2025 Mar 7, 2025 Miles Patrick CEO Sell 42.5 -82,788 -1.34% ✓ $936.9K
Mar 3, 2025 Mar 4, 2025 MCGINNIS KAREN K Director Sell 7.5 -38,320 -39.97% ✓ $469.8K
Feb 27, 2025 Feb 28, 2025 Lish Scott COO Sell 38.8 -23,183 -2.67% ✓ $278.9K
Feb 24, 2025 Feb 26, 2025 Miles Patrick CEO Sell 40.0 -125,381 -1.98% ✓ $1.4M
Feb 24, 2025 Feb 26, 2025 Sponsel David EVP, SALES Sell 35.0 -32,365 -4.40% ✓ $341.1K
Feb 6, 2025 Feb 7, 2025 Lish Scott COO Sell 35.0 -27,453 -3.07% ✓ $315.4K
Feb 5, 2025 Feb 7, 2025 Miles Patrick CEO Sell 45.0 -43,459 -0.68% ✓ $519.3K
Feb 3, 2025 Feb 4, 2025 Sponsel David EVP, SALES Sell 35.0 -36,256 -4.70% ✓ $414K
Jan 29, 2025 Jan 31, 2025 Miles Patrick CEO Sell 100.0 +607,516 10.54% ✓ $1.1M
Jan 29, 2025 Jan 31, 2025 Hunsaker Craig E EVP, PEOPLE & CULTURE Neutral 90.0 +352,061 27.59% ✗ -
Jan 29, 2025 Jan 31, 2025 Lish Scott COO Neutral 90.0 +314,269 54.10% ✗ -
Jan 29, 2025 Jan 31, 2025 Koning John Todd CFO Neutral 90.0 +254,872 64.79% ✗ -
Jan 29, 2025 Jan 31, 2025 Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC. Neutral 90.0 +233,120 94.90% ✗ -
Jan 29, 2025 Jan 31, 2025 Sponsel David EVP, SALES Neutral 90.0 +269,019 53.56% ✗ -
Jan 21, 2025 Jan 23, 2025 Miles Patrick CEO Sell 50.0 -6,687 -0.12% ✓ $80.2K
Jan 10, 2025 Jan 14, 2025 Sponsel David EVP, SALES Sell 22.5 -58,521 -10.43% ✓ $626.6K
Dec 18, 2024 Dec 18, 2024 Demski David M Director Neutral 90.0 +126,051 43.70% ✗ -
Dec 11, 2024 Dec 13, 2024 Sponsel David EVP, SALES Sell 26.3 -62,018 -9.96% ✓ $601K
Dec 10, 2024 Dec 13, 2024 Hunsaker Craig E EVP, PEOPLE & CULTURE Sell 22.5 -23,157 -1.78% ✗ $223.5K
Nov 21, 2024 Dec 5, 2024 Blackford Quentin S. Director Neutral 27.5 -15,114 -2.56% ✗ -
Nov 20, 2024 Nov 22, 2024 Miles Patrick CEO Sell 40.0 -100,000 -1.70% ✓ $1M
Aug 23, 2024 Aug 26, 2024 Bakst Evan Director Buy 87.5 +35,000 3.12% ✗ $201.6K