Berkowitz Mortimer III sold Alphatec Holdings ($ATEC) shares once on the open market in the last year, for nearly $1 million. His most recent sale occurred on September 9, 2025. This places him 4,935th among 11,678 insiders by sale value, well below the average of $8.6 million across about six transactions. He made no open market purchases.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 9, 2025 | Alphatec Holdings, Inc. | $ATEC | Berkowitz Mortimer III | Not found | S | Common Stock | 62500 | $15.97 | 1,229,152.0000 | 142,946,000 | 4.84% | 0.04% |
| June 11, 2025 | Alphatec Holdings, Inc. | $ATEC | Berkowitz Mortimer III | Not found | A | Common Stock | 15131 | $0.00 | 1,291,652.0000 | 142,946,000 | 1.19% | 0.01% |
| June 12, 2024 | Alphatec Holdings, Inc. | $ATEC | Berkowitz Mortimer III | Not found | A | Common Stock | 16747 | $0.00 | 1,276,521.0000 | 121,242,000 | 1.33% | 0.01% |
| June 20, 2023 | Alphatec Holdings, Inc. | $ATEC | Berkowitz Mortimer III | Not found | A | Common Stock | 9908 | $0.00 | 1,259,774.0000 | 103,373,000 | 0.79% | 0.01% |
| May 12, 2023 | Alphatec Holdings, Inc. | $ATEC | Berkowitz Mortimer III | Not found | F | Common Stock | 24294 | $15.55 | 1,249,866.0000 | 103,373,000 | 1.91% | 0.02% |
| May 12, 2023 | Alphatec Holdings, Inc. | $ATEC | Berkowitz Mortimer III | Not found | M | Common Stock | 107937 | $3.50 | 1,274,160.0000 | 103,373,000 | 9.26% | 0.10% |
| May 12, 2023 | Alphatec Holdings, Inc. | $ATEC | Berkowitz Mortimer III | Not found | M | Warrants (right to buy) | 107937 | $0.00 | 0.0000 | 103,373,000 | 100.00% | 0.10% |
| March 7, 2023 | Alphatec Holdings, Inc. | $ATEC | Berkowitz Mortimer III | Not found | M | Common Stock | 107937 | $3.50 | 1,190,043.0000 | 103,373,000 | 9.97% | 0.10% |
| March 7, 2023 | Alphatec Holdings, Inc. | $ATEC | Berkowitz Mortimer III | Not found | F | Common Stock | 23820 | $15.86 | 1,166,223.0000 | 103,373,000 | 2.00% | 0.02% |
| March 7, 2023 | Alphatec Holdings, Inc. | $ATEC | Berkowitz Mortimer III | Not found | M | Warrants (right to buy) | 107937 | $0.00 | 107,937.0000 | 103,373,000 | 50.00% | 0.10% |