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David Sponsel

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Insider profile

Currently holds a position at Alphatec Holdings Inc

Performance

Overall performance
3.4
Performance over holding periods
3.4
30 days 90 days 120 days
Average return 3% 8.2% 15.1%
Success rate 87% 68% 82%
Transactions
2 0% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance

Positions

Position Company Period
Executive Vice President - Sales Alphatec Holdings Inc April 15, 2019 -
David Sponsel's trades of Alphatec Holdings Inc's stock


Subscribe to get access to the transaction volume chart and in-chart transaction details
• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-03-13 2026-03-11
PlS Planned sale
5,681 -14.2%
475.12
US$4,729,677 		5,681 -14.2% 475.12 US$4,729,677
2026-03-11 2026-03-11
PrS Proposed sale
24,451
303.61
US$2,453,339 		24,451 303.61 US$2,453,339
2026-02-06 2026-02-05
PlS Planned sale
11,036 +41.8%
305.11
US$2,852,579 		11,036 +41.8% 305.11 US$2,852,579
2026-02-05 2026-02-05
PrS Proposed sale
60,425
14.06
US$849,576 		60,425 14.06 US$849,576
2025-12-12 2025-12-10
PlS Planned sale
21,106 -4.6%
20.79
US$438,794 		21,106 -4.6% 20.79 US$438,794
2025-12-10 2025-12-10
PrS Proposed sale
21,106
20.67
US$436,261 		21,106 20.67 US$436,261
2025-12-10 2025-12-08
S Sale
988 -0.2%
21.45
US$21,193 		988 -0.2% 21.45 US$21,193
2025-10-28 2025-10-24
PlS Planned sale
70,000 -13.2%
16.18
US$1,132,600 		70,000 -13.2% 16.18 US$1,132,600
2025-10-24 2025-10-24
PrS Proposed sale
70,000
15.89
US$1,112,300 		70,000 15.89 US$1,112,300
2025-09-19 2025-09-19
PrS Proposed sale
2,555
15.22
US$38,887 		2,555 15.22 US$38,887
2025-09-19 2025-09-19
PlS Planned sale
2,555 -0.5%
15.34
US$39,194 		2,555 -0.5% 15.34 US$39,194
2025-09-19 2025-09-18
PlS Planned sale
137,445 -20.5%
15.09
US$2,074,045 		137,445 -20.5% 15.09 US$2,074,045
2025-09-18 2025-09-18
PrS Proposed sale
137,445
14.70
US$2,020,442 		137,445 14.70 US$2,020,442
2025-03-10 2025-03-06
PlS Planned sale
33,732 -4.8%
10.83
US$365,318 		33,732 -4.8% 10.83 US$365,318
2025-03-06 2025-03-06
PrS Proposed sale
33,732
11.44
US$385,894 		33,732 11.44 US$385,894
2025-02-26 2025-02-25
PlS Planned sale
19,419 -2.7%
10.41
US$202,152 		19,419 -2.7% 10.41 US$202,152
2025-02-25 2025-02-25
PrS Proposed sale
19,419
10.76
US$208,948 		19,419 10.76 US$208,948
2025-02-26 2025-02-24
PlS Planned sale
12,946 -1.8%
10.73
US$138,911 		12,946 -1.8% 10.73 US$138,911
2025-02-24 2025-02-24
PrS Proposed sale
12,946
10.61
US$137,357 		12,946 10.61 US$137,357
2025-02-04 2025-02-03
PlS Planned sale
36,256 -4.7%
11.42
US$414,044 		36,256 -4.7% 11.42 US$414,044
2025-02-03 2025-02-03
PrS Proposed sale
36,256
11.79
US$427,458 		36,256 11.79 US$427,458
2025-01-14 2025-01-13
PlS Planned sale
58,283 -10.4%
10.71
US$624,211 		58,283 -10.4% 10.71 US$624,211
2025-01-14 2025-01-10
PlS Planned sale
238 -0.0%
10.00
US$2,380 		238 -0.0% 10.00 US$2,380
2024-12-13 2024-12-11
PlS Planned sale
62,018 -10.0%
9.69
US$600,954 		62,018 -10.0% 9.69 US$600,954
2024-12-11 2024-12-11
PrS Proposed sale
120,539
9.65
US$1,163,201 		120,539 9.65 US$1,163,201
2024-02-29 2024-02-27
PlS Planned sale
32,365 -4.9%
15.19
US$491,624 		32,365 -4.9% 15.19 US$491,624
2024-02-27 2024-02-27
PrS Proposed sale
32,365
15.19
US$491,537 		32,365 15.19 US$491,537
2024-02-22 2024-02-21
PlS Planned sale
17,820 -2.6%
15.34
US$273,359 		17,820 -2.6% 15.34 US$273,359
2024-02-21 2024-02-21
PrS Proposed sale
17,820
15.34
US$273,414 		17,820 15.34 US$273,414
2024-02-15 2024-02-14
PlS Planned sale
2,500 -0.4%
16.16
US$40,400 		2,500 -0.4% 16.16 US$40,400
2024-02-14 2024-02-14
PrS Proposed sale
2,500
16.16
US$40,400 		2,500 16.16 US$40,400
2024-02-05 2024-02-02
PlS Planned sale
36,620 -5.4%
16.47
US$603,131 		36,620 -5.4% 16.47 US$603,131
2024-02-02 2024-02-02
PrS Proposed sale
36,620
16.47
US$603,040 		36,620 16.47 US$603,040
2024-01-17 2024-01-16
PlS Planned sale
2,500 -0.4%
15.00
US$37,500 		2,500 -0.4% 15.00 US$37,500
2024-01-16 2024-01-16
PrS Proposed sale
2,500
15.00
US$37,500 		2,500 15.00 US$37,500
2023-12-26 2023-12-21
PlS Planned sale
2,500 -0.4%
15.00
US$37,500 		2,500 -0.4% 15.00 US$37,500
2023-06-20 2023-06-15
PlS Planned sale
55,577 -9.0%
16.17
US$898,680 		55,577 -9.0% 16.17 US$898,680
2023-06-15 2023-06-15
PrS Proposed sale
55,577
16.17
US$898,652 		55,577 16.17 US$898,652
2023-03-08 2023-03-06
PlS Planned sale
16,823 -2.3%
15.82
US$266,140 		16,823 -2.3% 15.82 US$266,140
2023-01-10 2023-01-09
PlS Planned sale
10,000 -1.8%
11.99
US$119,900 		10,000 -1.8% 11.99 US$119,900
2022-12-05 2022-12-05
PlS Planned sale
10,000 -1.8%
9.88
US$98,800 		10,000 -1.8% 9.88 US$98,800
2022-11-09 2022-11-07
PlS Planned sale
10,000 -1.7%
9.25
US$92,500 		10,000 -1.7% 9.25 US$92,500
2021-11-15 2021-11-12
PlS Planned sale
9,847 -1.8%
11.56
US$113,831 		9,847 -1.8% 11.56 US$113,831
2021-06-21 2021-06-16
S Sale
10,000 -1.8%
14.78
US$147,800 		10,000 -1.8% 14.78 US$147,800
2021-05-04 2021-05-03
PlS Planned sale
30,000 -4.8%
15.97
US$479,100 		30,000 -4.8% 15.97 US$479,100