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Insider Trading Intelligence
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DS

David Sponsel

ATEC
EVP, SALES · ALPHATEC HOLDINGS, INC. · CIK 0001772837
FILING MIX · LIFETIME33%/67%
BUYS
21
SELLS
43
TOTAL VALUE
$16.92M
COMPANIES
1
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
504,932
AVG SELL PX
$13.32
TRADE KIND
SHOWING 64 / 64
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
31 backtested trades · 8 horizons · 23 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by David Sponsel, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d31+51.61%-1.30%-0.56%-0.74%+0.45%-0.41
14d31+70.97%-3.74%-0.31%-3.44%-4.29%-2.06
30d31+64.52%-1.32%+0.67%-1.99%-1.78%-0.95
60d31+58.06%-0.90%+0.87%-1.77%-3.39%-0.45
90d31+64.52%-2.41%+2.92%-5.33%-6.58%-1.10
180d31(2 pending)+58.62%-4.37%+8.77%-13.14%-18.83%—
1y31(7 pending)+54.17%+16.89%+17.46%-0.56%-5.42%—
2y31(14 pending)+70.59%+1.51%+34.25%-32.74%-46.80%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ATEC · 504,932 shares · as of Mar 11, 2026
0192,833385,665578,498771,330202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 21 buys / 43 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
163,452$12.52$2.05M504,932Mar 11, 2026Mar 12, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
205,094——554,594Feb 25, 2026Feb 27, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
20,380——668,384Feb 25, 2026Feb 27, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
46,705——46,705Feb 25, 2026Feb 27, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
93,410——648,004Feb 25, 2026Feb 27, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
60,425$13.79$833.3K349,500Feb 5, 2026Feb 6, 2026 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
21,106$20.79$438.8K439,767Dec 10, 2025Dec 12, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, SALES
988$21.45$21.2K460,873Dec 8, 2025Dec 9, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
70,000$16.18$1.13M461,861Oct 24, 2025Oct 28, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
2,555$15.34$39.2K531,861Sep 19, 2025Sep 19, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
137,445$15.09$2.07M534,416Sep 18, 2025Sep 19, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, SALES
982$15.34$15.1K671,861Aug 6, 2025Aug 7, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
3,866——672,843Apr 1, 2025Apr 3, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
33,732$10.83$365.3K668,977Mar 6, 2025Mar 7, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
19,419$10.41$202.2K702,709Feb 25, 2025Feb 26, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
12,946$10.73$138.9K722,128Feb 24, 2025Feb 26, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
36,256$11.42$414.0K735,074Feb 3, 2025Feb 4, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
133,591——635,902Jan 29, 2025Jan 31, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
114,322——750,224Jan 29, 2025Jan 31, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
21,106——771,330Jan 29, 2025Jan 31, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
58,283$10.71$624.2K502,311Jan 13, 2025Jan 13, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
238$10.00$2.4K560,594Jan 10, 2025Jan 13, 2025 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
62,018$9.69$601.0K560,832Dec 11, 2024Dec 13, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
32,365$15.19$491.6K622,296Feb 27, 2024Feb 29, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
17,820$15.34$273.4K654,661Feb 21, 2024Feb 22, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
35,063——672,481Feb 21, 2024Feb 22, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
2,500$16.16$40.4K637,418Feb 14, 2024Feb 15, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
36,620$16.47$603.1K639,918Feb 2, 2024Feb 5, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
121,258——676,538Feb 1, 2024Feb 5, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
2,500$15.00$37.5K555,280Jan 16, 2024Jan 17, 2024 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
2,500$15.00$37.5K557,780Dec 21, 2023Dec 26, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
55,577$16.17$898.7K559,840Jun 15, 2023Jun 19, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, SALES
68,174$15.59$1.06M615,417May 15, 2023May 16, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, SALES
35,590$16.15$574.8K683,591Apr 26, 2023Apr 27, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, SALES
16,823$15.82$266.1K719,181Mar 6, 2023Mar 8, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
30,314——736,004Feb 1, 2023Feb 3, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
98,078——645,061Feb 1, 2023Feb 3, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
60,629——705,690Feb 1, 2023Feb 3, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, SALES
10,000$11.99$119.9K546,983Jan 9, 2023Jan 10, 2023 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, SALES
10,000$9.88$98.8K556,983Dec 5, 2022Dec 5, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, SALES
10,000$9.25$92.5K566,690Nov 7, 2022Nov 8, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, SALES
620$8.91$5.5K576,690Aug 11, 2022Aug 12, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
3,099$7.46$23.1K577,310Jun 3, 2022Jun 3, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
34,087$8.26$281.6K580,409May 17, 2022May 19, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
33,517$11.54$386.8K613,051Apr 28, 2022Apr 30, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
10,582$10.94$115.8K646,568Mar 18, 2022Mar 22, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
50,000——591,765Feb 24, 2022Feb 27, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
65,385——657,150Feb 24, 2022Feb 27, 2022 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
9,847$11.56$113.8K541,765Nov 12, 2021Nov 15, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
620$15.23$9.4K550,598Aug 5, 2021Aug 7, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
3,099$15.32$47.5K551,218Jul 1, 2021Jul 1, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
10,000$14.78$147.8K554,317Jun 16, 2021Jun 18, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASE
EVP, Sales
34,087$14.81$504.8K564,317May 17, 2021May 18, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASE
EVP, Sales
12,813$3.17$40.6K628,184May 3, 2021May 4, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASE
EVP, Sales
17,187$3.86$66.3K615,371May 3, 2021May 4, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
30,000$15.97$479.1K598,184May 3, 2021May 4, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
17,187——7,813May 3, 2021May 4, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
12,813——7,187May 3, 2021May 4, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
14,572$16.63$242.3K598,184Apr 26, 2021Apr 27, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALEGRANT
Stock grant
40,000——612,756Feb 18, 2021Feb 22, 2021 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
SALE
EVP, Sales
89,999$9.47$852.3K571,840Oct 12, 2020Oct 14, 2020 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
216,422——661,839Apr 22, 2020Apr 24, 2020 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASEGRANT
Stock grant
2,398$3.93$9.4K445,417Apr 6, 2020Apr 8, 2020 ↗View →
ATEC
ALPHATEC HOLDINGS, INC.
PURCHASE
EVP, Sales
11,000$4.51$49.6K443,019Mar 11, 2020Mar 12, 2020 ↗View →
Other insiders · ATEC
Loading peer insiders…
About this filer
CIK 0001772837
ROLE
EVP, Sales
PRIMARY
ATEC
COMPANIES
1
ACTIVE SINCE
Mar 2020
MARKETPEEL · /INSIDER/0001772837DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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