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Sponsel David

Disclosed activity across 1 company

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60948
SEC CIK
0001772837

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Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Alphatec Holdings, Inc.ATEC · Entity 4720EVP, SALESMarch 11, 2026March 13, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Alphatec Holdings, Inc.

Report date March 11, 2026 · Filed March 13, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect504,932 Reported balance After 2026-03-11 transaction · row 1
1 source row

Row 1 · 2026-03-11 · Sale · Disposed 163,452 · Balance 504,932

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2025 to satisfy certain tax withholding obligations of the reporting person resulting from the vesting of restricted stock units.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.13 to $12.92, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Filing footnotes · ownership attribution and instrument terms

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2025 to satisfy certain tax withholding obligations of the reporting person resulting from the vesting of restricted stock units.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.13 to $12.92, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 05, 2021 Filed Aug 9, 2021 15:16 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 Tax withholdingCommon Stock 620 $15.23 $9,442.60
Disclosure

SEC source: 0001179110-21-008023 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 550,598

F1 · kind: Shares withheld by issuer to satisfy tax withholding obligations of reporting person resulting from vesting of restricted stock units.

F1 · shares: Shares withheld by issuer to satisfy tax withholding obligations of reporting person resulting from vesting of restricted stock units.

Read SEC document
July 01, 2021 Filed Jul 1, 2021 22:36 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 Tax withholdingCommon Stock 3,099 $15.32 $47,476.68
Disclosure

SEC source: 0001179110-21-007278 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 551,218

F1 · kind: Shares withheld by issuer to satisfy tax withholding obligations of reporting person resulting from vesting of restricted stock units.

F1 · shares: Shares withheld by issuer to satisfy tax withholding obligations of reporting person resulting from vesting of restricted stock units.

Read SEC document
June 16, 2021 Filed Jun 21, 2021 18:17 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 SaleCommon Stock 10,000 $14.78 $147,800.00
Disclosure

SEC source: 0001179110-21-006875 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 554,317

Read SEC document
May 17, 2021 Filed May 19, 2021 16:29 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 Tax withholdingCommon Stock 34,087 $14.81 $504,828.47
Disclosure

SEC source: 0001179110-21-005568 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 564,317

F1 · kind: Shares withheld by issuer to satisfy tax withholding obligations of reporting person resulting from vesting of restricted stock units.

F1 · shares: Shares withheld by issuer to satisfy tax withholding obligations of reporting person resulting from vesting of restricted stock units.

F1 · balance_after: Shares withheld by issuer to satisfy tax withholding obligations of reporting person resulting from vesting of restricted stock units.

F2 · balance_after: Includes 220 shares acquired under the issuer's employee stock purchase plan on May 14, 2021.

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May 03, 2021 Filed May 5, 2021 00:10 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 12,813 $0.00 Strike: $3.17 $0.00
Disclosure

SEC source: 0001179110-21-004879 · edgar.xml · derivative · entry 5

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,187

Underlying: Common Stock · 12,813 shares

Expires 2028-11-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The options vest 25% on November 2, 2019 and thereafter in 36 equal monthly installments.

Read SEC document
May 03, 2021 Filed May 5, 2021 00:10 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 17,187 $0.00 Strike: $3.86 $0.00
Disclosure

SEC source: 0001179110-21-004879 · edgar.xml · derivative · entry 4

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,813

Underlying: Common Stock · 17,187 shares

Expires 2028-05-29

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The options vest 25% on May 29, 2019 and thereafter in 36 equal monthly installments.

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May 03, 2021 Filed May 5, 2021 00:10 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 SaleCommon Stock 30,000 $15.97 $479,100.00
Disclosure

SEC source: 0001179110-21-004879 · edgar.xml · nonDerivative · entry 3

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 598,184

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 16, 2021.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.76 to $16.10, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Read SEC document
May 03, 2021 Filed May 5, 2021 00:10 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 Exercise / conversionCommon Stock 12,813 $3.17 $40,617.21
Disclosure

SEC source: 0001179110-21-004879 · edgar.xml · nonDerivative · entry 2

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 628,184

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 03, 2021 Filed May 5, 2021 00:10 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 Exercise / conversionCommon Stock 17,187 $3.86 $66,341.82
Disclosure

SEC source: 0001179110-21-004879 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 615,371

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
April 26, 2021 Filed Apr 28, 2021 13:52 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 SaleCommon Stock 14,572 $16.63 $242,332.36
Disclosure

SEC source: 0001179110-21-004643 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 598,184

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 16, 2021.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.42 to $16.84, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Read SEC document
February 18, 2021 Filed Feb 23, 2021 01:04 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 GrantCommon Stock 40,000 $0.00 $0.00
Disclosure

SEC source: 0001179110-21-002081 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 612,756

F1 · security: On February 18, 2021, issuer granted to the reporting person 40,000 restricted stock units (RSUs). The RSUs vest in three equal installments on each of the first three anniversaries of the grant date. Each RSU represents a contingent right to receive one share of the issuer's common stock.

F1 · shares: On February 18, 2021, issuer granted to the reporting person 40,000 restricted stock units (RSUs). The RSUs vest in three equal installments on each of the first three anniversaries of the grant date. Each RSU represents a contingent right to receive one share of the issuer's common stock.

F1 · balance_after: On February 18, 2021, issuer granted to the reporting person 40,000 restricted stock units (RSUs). The RSUs vest in three equal installments on each of the first three anniversaries of the grant date. Each RSU represents a contingent right to receive one share of the issuer's common stock.

F2 · balance_after: Includes 482 and 434 shares acquired under the issuer's employee stock purchase plan on May 15, 2020 and November 13, 2020, respectively.

Read SEC document
October 12, 2020 Filed Oct 14, 2020 18:03 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 SaleCommon Stock 89,999 $9.47 $852,290.53
Disclosure

SEC source: 0001179110-20-010442 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 571,840

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 10, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.25 to $9.67, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Read SEC document
April 22, 2020 Filed Apr 25, 2020 01:28 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 GrantCommon Stock 216,422 $0.00 $0.00
Disclosure

SEC source: 0001179110-20-005124 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 661,839

F1 · date: On April 22, 2020, issuer granted to the reporting person 216,422 restricted stock units (RSUs), subject to receipt of required approval of an amendment to issuer's 2016 Equity Incentive Plan to increase the number of shares authorized for issuance under the plan by at least such number as is necessary to vest all of the awards granted on April 22, 2020. The RSUs vest in three equal installments on each of the first three anniversaries of the grant date; provided, however, that the vesting of 50% of these RSUs is subject to the additional condition that the publicly-traded stock price for the issuer's common stock reaches a 30-day average trading price equal to or above $7.52 per share during the first three years following the grant date. Should the publicly-traded stock price for the issuer's common stock reach a 30-day average trading price at or above $7.52 per share at any time during such three year period, this pricing condition will be satisfied and will terminate.

F2 · date: Each RSU represents a contingent right to receive one share of the issuer's common stock.

F1 · shares: On April 22, 2020, issuer granted to the reporting person 216,422 restricted stock units (RSUs), subject to receipt of required approval of an amendment to issuer's 2016 Equity Incentive Plan to increase the number of shares authorized for issuance under the plan by at least such number as is necessary to vest all of the awards granted on April 22, 2020. The RSUs vest in three equal installments on each of the first three anniversaries of the grant date; provided, however, that the vesting of 50% of these RSUs is subject to the additional condition that the publicly-traded stock price for the issuer's common stock reaches a 30-day average trading price equal to or above $7.52 per share during the first three years following the grant date. Should the publicly-traded stock price for the issuer's common stock reach a 30-day average trading price at or above $7.52 per share at any time during such three year period, this pricing condition will be satisfied and will terminate.

F2 · shares: Each RSU represents a contingent right to receive one share of the issuer's common stock.

F1 · balance_after: On April 22, 2020, issuer granted to the reporting person 216,422 restricted stock units (RSUs), subject to receipt of required approval of an amendment to issuer's 2016 Equity Incentive Plan to increase the number of shares authorized for issuance under the plan by at least such number as is necessary to vest all of the awards granted on April 22, 2020. The RSUs vest in three equal installments on each of the first three anniversaries of the grant date; provided, however, that the vesting of 50% of these RSUs is subject to the additional condition that the publicly-traded stock price for the issuer's common stock reaches a 30-day average trading price equal to or above $7.52 per share during the first three years following the grant date. Should the publicly-traded stock price for the issuer's common stock reach a 30-day average trading price at or above $7.52 per share at any time during such three year period, this pricing condition will be satisfied and will terminate.

F2 · balance_after: Each RSU represents a contingent right to receive one share of the issuer's common stock.

Read SEC document
April 06, 2020 Filed Apr 8, 2020 21:21 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 GrantCommon Stock 2,398 $3.93 $9,424.14
Disclosure

SEC source: 0001179110-20-004804 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 445,417

F1 · date: On April 6, 2020, the restricted stock units (RSUs) were granted to the reporting person in connection with the reporting person's election to participate in the issuer's employee salary conversion plan, which was adopted by the Compensation Committee of the issuer's board of directors on April 1, 2020 in response to the novel coronavirus (COVID-19) and the financial impact on the issuer resulting therefrom. Under the terms of the plan, the reporting person is being granted RSUs in lieu of a percentage of the reporting person's cash compensation for the period between April 6, 2020 and July 10, 2020.

F2 · date: Each RSU represents a contingent right to receive one share of the issuer's common stock. The RSUs vest in full on July 10, 2020.

F1 · shares: On April 6, 2020, the restricted stock units (RSUs) were granted to the reporting person in connection with the reporting person's election to participate in the issuer's employee salary conversion plan, which was adopted by the Compensation Committee of the issuer's board of directors on April 1, 2020 in response to the novel coronavirus (COVID-19) and the financial impact on the issuer resulting therefrom. Under the terms of the plan, the reporting person is being granted RSUs in lieu of a percentage of the reporting person's cash compensation for the period between April 6, 2020 and July 10, 2020.

F2 · shares: Each RSU represents a contingent right to receive one share of the issuer's common stock. The RSUs vest in full on July 10, 2020.

F3 · price: The conversion price (cash for equity) is based on a 30-day volume weighted average price of the issuer's common stock as of close of market on Friday, April 3, 2020.

F1 · balance_after: On April 6, 2020, the restricted stock units (RSUs) were granted to the reporting person in connection with the reporting person's election to participate in the issuer's employee salary conversion plan, which was adopted by the Compensation Committee of the issuer's board of directors on April 1, 2020 in response to the novel coronavirus (COVID-19) and the financial impact on the issuer resulting therefrom. Under the terms of the plan, the reporting person is being granted RSUs in lieu of a percentage of the reporting person's cash compensation for the period between April 6, 2020 and July 10, 2020.

F2 · balance_after: Each RSU represents a contingent right to receive one share of the issuer's common stock. The RSUs vest in full on July 10, 2020.

Read SEC document
March 11, 2020 Filed Mar 12, 2020 21:40 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 PurchaseCommon Stock 11,000 $4.51 $49,610.00
Disclosure

SEC source: 0001179110-20-003584 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 443,019

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $4.49 to $4.52, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

F2 · balance_after: Includes 463 shares acquired under the issuer's employee stock purchase plan on November 15, 2019.

Read SEC document
May 13, 2019 Filed May 16, 2019 00:12 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 GrantCommon Stock 68,750 $0.00 $0.00
Disclosure

SEC source: 0001179110-19-006129 · edgar.xml · nonDerivative · entry 2

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 431,556

F2 · date: On May 13, 2019, issuer granted to the reporting person 68,750 restricted stock units, subject to stockholder approval of an amendment to issuer's 2016 Equity Incentive Plan to increase the number of shares authorized for issuance under the plan by 4,000,000 shares. The restricted stock units vest on the fourth anniversary of grant date; provided, however, that no portion of such restricted stock units shall vest unless the publicly-traded stock price for the issuer's common stock at the close of the market on such fourth anniversary date is equal to or greater than $6.18 per share (representing a 50% increase in the price per share as of the grant date).

F2 · shares: On May 13, 2019, issuer granted to the reporting person 68,750 restricted stock units, subject to stockholder approval of an amendment to issuer's 2016 Equity Incentive Plan to increase the number of shares authorized for issuance under the plan by 4,000,000 shares. The restricted stock units vest on the fourth anniversary of grant date; provided, however, that no portion of such restricted stock units shall vest unless the publicly-traded stock price for the issuer's common stock at the close of the market on such fourth anniversary date is equal to or greater than $6.18 per share (representing a 50% increase in the price per share as of the grant date).

F3 · shares: Each restricted stock unit represents a contingent right to receive one share of issuer's common stock.

F2 · balance_after: On May 13, 2019, issuer granted to the reporting person 68,750 restricted stock units, subject to stockholder approval of an amendment to issuer's 2016 Equity Incentive Plan to increase the number of shares authorized for issuance under the plan by 4,000,000 shares. The restricted stock units vest on the fourth anniversary of grant date; provided, however, that no portion of such restricted stock units shall vest unless the publicly-traded stock price for the issuer's common stock at the close of the market on such fourth anniversary date is equal to or greater than $6.18 per share (representing a 50% increase in the price per share as of the grant date).

F3 · balance_after: Each restricted stock unit represents a contingent right to receive one share of issuer's common stock.

F4 · balance_after: Includes 4,056 shares acquired under the issuer's employee stock purchase plan on May 15, 2019.

Read SEC document
May 13, 2019 Filed May 16, 2019 00:12 UTC Alphatec Holdings, Inc. ATEC · Entity 4720 GrantCommon Stock 275,000 $0.00 $0.00
Disclosure

SEC source: 0001179110-19-006129 · edgar.xml · nonDerivative · entry 1

Sponsel David · CIK 0001772837 · EVP, Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 358,750

F1 · date: On May 13, 2019, issuer granted to the reporting person 275,000 restricted stock units, subject to stockholder approval of an amendment to issuer's 2016 Equity Incentive Plan to increase the number of shares authorized for issuance under the plan by 4,000,000 shares. The restricted stock units vest in four equal installments on each of the first four anniversaries of the grant date; provided, however, that no portion of the restricted stock units shall vest at any time during the first four years following the grant date unless and until the publicly-traded stock price for the issuer's common stock reaches a 30-day average trading price equal to or above $5.36 per share (representing a 30% increase in the price per share as of the grant date). Should the publicly traded stock price for the issuer's common stock reach a 30-day average trading price at or above $5.36 per share, this pricing condition on the vesting of the restricted stock units shall be satisfied, and shall terminate.

F1 · shares: On May 13, 2019, issuer granted to the reporting person 275,000 restricted stock units, subject to stockholder approval of an amendment to issuer's 2016 Equity Incentive Plan to increase the number of shares authorized for issuance under the plan by 4,000,000 shares. The restricted stock units vest in four equal installments on each of the first four anniversaries of the grant date; provided, however, that no portion of the restricted stock units shall vest at any time during the first four years following the grant date unless and until the publicly-traded stock price for the issuer's common stock reaches a 30-day average trading price equal to or above $5.36 per share (representing a 30% increase in the price per share as of the grant date). Should the publicly traded stock price for the issuer's common stock reach a 30-day average trading price at or above $5.36 per share, this pricing condition on the vesting of the restricted stock units shall be satisfied, and shall terminate.

F3 · shares: Each restricted stock unit represents a contingent right to receive one share of issuer's common stock.

F1 · balance_after: On May 13, 2019, issuer granted to the reporting person 275,000 restricted stock units, subject to stockholder approval of an amendment to issuer's 2016 Equity Incentive Plan to increase the number of shares authorized for issuance under the plan by 4,000,000 shares. The restricted stock units vest in four equal installments on each of the first four anniversaries of the grant date; provided, however, that no portion of the restricted stock units shall vest at any time during the first four years following the grant date unless and until the publicly-traded stock price for the issuer's common stock reaches a 30-day average trading price equal to or above $5.36 per share (representing a 30% increase in the price per share as of the grant date). Should the publicly traded stock price for the issuer's common stock reach a 30-day average trading price at or above $5.36 per share, this pricing condition on the vesting of the restricted stock units shall be satisfied, and shall terminate.

F3 · balance_after: Each restricted stock unit represents a contingent right to receive one share of issuer's common stock.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.