Mortimer Berkowitz III serves as Executive at Alphatec Holdings, Inc., where they oversee executive responsibilities. Since joining the company, Mortimer Berkowitz III has executed 38 insider transactions totaling $64.7M, demonstrating a bearish approach to their equity position. Their most recent transaction on Sep 9, 2025 involved selling 62,500 shares valued at $998.1K.
Mortimer Berkowitz III currently holds 618,050 shares of Alphatec Holdings, Inc. (ATEC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mortimer Berkowitz III has been a net seller of ATEC stock. They have purchased $19.7M and sold $45.0M worth of shares.
Mortimer Berkowitz III's most recent insider trade was on Sep 9, 2025, when they sold 62,500 shares at $15.97 per share.
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| $N/A |
| Discretionary |
| Jun 20, 2023 | ATEC | $0 | Award | 9,908 | $N/A | Discretionary |
| May 12, 2023 | ATEC | $377.8K | Option Exercise | 107,937 | $3.50 | Discretionary |
| May 12, 2023 | ATEC | $377.8K | Payment | 24,294 | $15.55 | Discretionary |
| Mar 7, 2023 | ATEC | $377.8K | Payment | 23,820 | $15.86 | Discretionary |
| Mar 7, 2023 | ATEC | $377.8K | Option Exercise | 107,937 | $3.50 | Discretionary |
| Jun 9, 2022 | ATEC | $400.0K | Option Exercise | 200,000 | $2.00 | Discretionary |
| Jun 9, 2022 | ATEC | $115.2K | Purchase | 16,000 | $7.20 | Discretionary |
| Jun 7, 2022 | ATEC | $400.0K | Option Exercise | 200,000 | $2.00 | Discretionary |
| Jun 15, 2018 | ATEC | $0 | Other | 906,431 | $N/A | Discretionary |
| Jun 15, 2018 | ATEC | $0 | Other | 1,742,546 | $N/A | Discretionary |
| Jun 15, 2018 | ATEC | $0 | Other | 8,396 | $N/A | Discretionary |
| Jun 15, 2018 | ATEC | $0 | Other | 2,807 | $N/A | Discretionary |
| May 17, 2018 | ATEC | $0 | Option Exercise | 126,985 | $N/A | Discretionary |
| May 17, 2018 | ATEC | $0 | Option Exercise | 126,985 | $N/A | Discretionary |
| Oct 27, 2017 | ATEC | $0 | Option Exercise | 200,000 | $N/A | Discretionary |
| Oct 27, 2017 | ATEC | $0 | Option Exercise | 200,000 | $N/A | Discretionary |
| Nov 28, 2012 | ATEC | $151.0K | Sale | 100,000 | $1.51 | Discretionary |
| Nov 28, 2012 | ATEC | $151.0K | Sale | 100,000 | $1.51 | Discretionary |
| Mar 7, 2012 | ATEC | $0 | Other | 1,344,179 | $N/A | Discretionary |
| Apr 21, 2010 | ATEC | $43.7M | Sale | 9,200,000 | $4.75 | Discretionary |
| Mar 26, 2010 | ATEC | $0 | Award | 22,500,271 | $N/A | Discretionary |
| Jun 4, 2009 | ATEC | $10.0M | Purchase | 3,937,007 | $2.54 | Discretionary |
| Aug 8, 2008 | ATEC | $24.8K | Purchase | 5,000 | $4.96 | Discretionary |
| Nov 20, 2007 | ATEC | $52.4K | Award | 12,500 | $4.19 | Discretionary |
| Sep 26, 2007 | ATEC | $9.5M | Purchase | 2,750,000 | $3.45 | Discretionary |
| Jun 14, 2007 | ATEC | $15.1K | Purchase | 4,200 | $3.60 | Discretionary |
| Aug 11, 2006 | ATEC | $10.6K | Purchase | 1,800 | $5.89 | Discretionary |
| Aug 10, 2006 | ATEC | $1.1K | Purchase | 200 | $5.49 | Discretionary |