Demski David M Insider Trading Activity

Average Profitability
10.67%
Insider Buys Quantity
3
Insider Buys Sum
$860,900.00
Insider Sells Quantity
25
Insider Sells Sum
$92.03M

Insider Activity of Demski David M

According to the SEC Form 4 filings, Demski David M, being in a position of

  1. director at Alphatec Holdings, Inc.,
    оver the last 12 months, has bought 60000 shares for $408,600, and sold 30000 shares for $636,000,
    over all time since 2023-11-09, has bought 180000 shares for $1.27M, and sold 30000 shares for $636,000.

Biography of Demski David M

No biography is available at this moment.

Statistics of Insider Transactions Last Year

Amount of Insider Buys and Sells by Stocks

Buys
 $408,600150
Sells
 $636,000150

Comparison of Insiders on Amount of Buys and Sells

2026-10-30PurchaseAlphatec Holdings, Inc.
ATEC
director
60,000
0.0369%
$6.81$408,600+4.97%
2025-12-11SaleAlphatec Holdings, Inc.
ATEC
director
30,000
0.0216%
$21.20$636,000-47.82%
2024-08-21PurchaseAlphatec Holdings, Inc.
ATEC
director
50,000
0.0355%
$5.67$283,500+84.33%
2024-08-02PurchaseAlphatec Holdings, Inc.
ATEC
director
40,000
0.0297%
$6.56$262,400+61.59%
2023-11-09PurchaseAlphatec Holdings, Inc.
ATEC
director
30,000
0.0232%
$10.50$315,000+10.67%
2021-04-26SaleGlobus Medical, Inc.
GMED
President, CEO
144,263
0.1436%
$71.50$10.31M+2.48%
2021-04-23SaleGlobus Medical, Inc.
GMED
President, CEO
121,259
0.1215%
$71.59$8.68M+3.04%
2020-12-17SaleGlobus Medical, Inc.
GMED
President, CEO
164,719
0.1644%
$64.20$10.57M+9.74%
2020-12-16SaleGlobus Medical, Inc.
GMED
President, CEO
52,356
0.053%
$64.20$3.36M+11.37%
2020-08-06SaleGlobus Medical, Inc.
GMED
President, CEO
330,000
0.3277%
$56.39$18.61M+9.63%
2018-04-19SaleGlobus Medical, Inc.
GMED
Chief Executive Officer
97,047
0.099%
$51.00$4.95M-0.02%
2018-04-18SaleGlobus Medical, Inc.
GMED
Chief Executive Officer
52,062
0.0299%
$28.57$1.49M+0.58%
2018-04-13SaleGlobus Medical, Inc.
GMED
Chief Executive Officer
6,086
0.0063%
$51.00$310,386+0.83%
2018-04-12SaleGlobus Medical, Inc.
GMED
President, CEO
3,846
0.0008%
$10.66$40,998+0.88%
2015-02-26SaleGlobus Medical, Inc.
GMED
President and COO
65,020
0.0712%
$26.00$1.69M+0.98%
2014-03-06SaleGlobus Medical, Inc.
GMED
President and COO
542,658
0.5823%
$25.83$14.02M-8.31%
2014-01-15SaleGlobus Medical, Inc.
GMED
President and COO
193,626
0.1881%
$20.51$3.97M+3.86%
2013-12-31SaleGlobus Medical, Inc.
GMED
President and COO
6,374
0.0068%
$20.25$129,074+15.09%
2013-12-20SaleGlobus Medical, Inc.
GMED
President and COO
57,908
0.0619%
$19.75$1.14M+16.92%
2013-12-19SaleGlobus Medical, Inc.
GMED
President and COO
38,824
0.0417%
$19.75$766,774+17.39%
Total: 30
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