Alphatec Holdings, Inc. (ATEC) Insider Ownership

Historic Insider Ownership Trends

ATEC's three largest insider shareholders as of March 23, 2026 are Healthcare Partners, Llc L-5 (TenPercentOwner, 11.08Mn shares), Jennifer N. Pritzker (TenPercentOwner, 10.65Mn shares), Capital Holdings Llc Squadron (TenPercentOwner, 10.65Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Healthcare Partners, Llc L-5 11,081,538 0 12 May, 2023
Jennifer N. Pritzker 0 10,645,045 10 Dec, 2025
Capital Llc Squadron 10,645,045 0 09 Dec, 2025
Capital Holdings Llc Squadron 0 10,645,045 10 Dec, 2025
David R Pelizzon 0 10,395,045 18 Dec, 2025
Patrick Miles Ceo 5,778,551 0 08 Mar, 2026
Ward W Jr Woods 0 2,056,311 08 Mar, 2023
Craig E Hunsaker Evp, People Culture 1,725,609 0 10 Mar, 2026
Evan Bakst 1,105,785 0 14 Jun, 2024
Scott Lish Chief Operating Officer 815,704 0 17 Mar, 2026
James L L Tullis 171,962 563,831 12 Sep, 2023
Brian Snider Evp, Marketing 655,382 0 08 Aug, 2022
Mortimer Iii Berkowitz 618,050 0 11 Sep, 2025
Mortimer Iii Berkowitz 0 611,102 09 Mar, 2023
John Todd Koning Chief Financial Officer 600,721 0 17 Mar, 2026
Quentin S. Blackford 568,369 0 13 Jun, 2025
Tyson Eliot Marshall General Counsel Corp. Sec. 559,459 0 08 Mar, 2026
Kelli Mari Howell Evp, Clinical Strategies 540,098 0 09 Aug, 2022
David Sponsel Evp, Sales 504,932 0 12 Mar, 2026
David M Demski 399,623 0 12 Dec, 2025
Jeffrey P Rydin 385,441 0 05 Nov, 2025
David R Pelizzon 346,827 0 13 Jun, 2025
Ward W Jr Woods 154,291 0 13 Jun, 2025
Donald Allen Williams 134,728 0 18 Jun, 2021
Paul Segal 100,000 0 14 Jun, 2023
Keith Valentine 97,271 0 13 Jun, 2025
David H Mowry 92,381 0 12 Sep, 2023
Jason Hochberg 84,375 0 16 Dec, 2021
Karen K Mcginnis 68,709 0 13 Jun, 2025
Marie Meynadier 59,126 0 21 Jun, 2023
Jennifer N. Pritzker 58,000 0 10 Aug, 2023
Evan Bakst 0 50,000 26 Aug, 2024
Elizabeth Ann Altman 41,066 0 21 Jun, 2023
Andy Barnett 18,546 0 16 Jun, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
13 Mar, 2026 Scott Lish Common Stock D 260,535 $12.30 815,704 D S
13 Mar, 2026 John Todd Koning Common Stock D 79,789 $12.36 600,721 D S
11 Mar, 2026 David Sponsel Common Stock D 163,452 $12.52 504,932 D S
06 Mar, 2026 Craig E Hunsaker Common Stock D 33,602 $12.22 1,808,974 D S
09 Mar, 2026 Craig E Hunsaker Common Stock D 82,765 $12.45 1,726,209 D S
09 Mar, 2026 Craig E Hunsaker Common Stock D 600 $0.00 1,725,609 D G
05 Mar, 2026 Patrick Miles Common Stock D 219,749 $12.57 5,778,551 D F
05 Mar, 2026 John Todd Koning Common Stock D 68,910 $12.57 680,510 D F
05 Mar, 2026 Tyson Eliot Marshall Common Stock D 88,835 $12.49 559,459 D S
25 Feb, 2026 Patrick Miles Common Stock A 611,673 $0.00 5,643,680 D A
25 Feb, 2026 David Sponsel Common Stock A 205,094 $0.00 554,594 D A
25 Feb, 2026 Tyson Eliot Marshall Common Stock A 205,094 $0.00 550,536 D A
25 Feb, 2026 Craig E Hunsaker Common Stock A 311,110 $0.00 1,694,206 D A
25 Feb, 2026 Scott Lish Common Stock A 311,110 $0.00 927,869 D A
25 Feb, 2026 John Todd Koning Common Stock A 205,094 $0.00 618,646 D A
25 Feb, 2026 David Sponsel Common Stock A 93,410 $0.00 648,004 D A
25 Feb, 2026 Tyson Eliot Marshall Common Stock A 84,918 $0.00 635,454 D A
25 Feb, 2026 John Todd Koning Common Stock A 110,394 $0.00 729,040 D A
25 Feb, 2026 Patrick Miles Common Stock A 305,707 $0.00 5,949,387 D A
25 Feb, 2026 Scott Lish Common Stock A 127,378 $0.00 1,055,247 D A