A detailed history of Semanteon Capital Management, LP transactions in Alphatec Holdings, Inc. stock. As of the latest transaction made, Semanteon Capital Management, LP holds 38,490 shares of ATEC stock, worth $759,792. This represents 0.7% of its overall portfolio holdings.

Number of Shares
38,490
Previous 10,624 262.29%
Holding current value
$759,792
Previous $118 Million 374.57%
% of portfolio
0.7%
Previous 0.18%

Shares

4 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2025

Nov 10, 2025

BUY
$10.31 - $16.55 $287,298 - $461,182
27,866 Added 262.29%
38,490 $560 Million
Q2 2025

Aug 11, 2025

SELL
$9.43 - $13.03 $864,712 - $1.19 Million
-91,698 Reduced 89.62%
10,624 $118 Million
Q1 2025

May 13, 2025

BUY
$9.06 - $12.53 $629,289 - $870,308
69,458 Added 211.35%
102,322 $1.04 Billion
Q4 2024

Feb 11, 2025

BUY
$4.98 - $10.48 $163,662 - $344,414
32,864 New
32,864 $302 Million

Others Institutions Holding ATEC

About Alphatec Holdings, Inc.


  • Ticker ATEC
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Medical Devices
  • Shares Outstandng 104,656,000
  • Market Cap $2.07B
  • Description
  • Alphatec Holdings, Inc., a medical technology company, designs, develops, and advances technologies for the surgical treatment of spinal disorders. The company offers SafeOp Neural InformatiX System, an Alpha InformatiX product platform designed to reduce the risk of intraoperative nerve injury; Sigma transforaminal lumbar interbody fusion pedic...
More about ATEC
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