IPST · Ip Strategy Holdings, Inc.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

All share amounts in this Form 4 reflect a 1-for-20 reverse stock split effected on April 23, 2026.

The RSUs vest over a two-year period beginning January 2, 2026. Quarterly installments vested on February 2, 2026 and April 2, 2026, and the remaining units vesting in equal quarterly installments on July 2, 2026, October 2, 2026, January 2, 2027, April 2, 2027, July 2, 2027, and October 2, 2027, subject to continued service.

All share amounts in this Form 4 reflect a 1-for-20 reverse stock split effected on April 23, 2026.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

All share amounts in this Form 4 reflect a 1-for-20 reverse stock split effected on April 23, 2026.

The RSUs vest over a two-year period beginning January 2, 2026. Quarterly installments vested on February 2, 2026 and April 2, 2026, and the remaining units vesting in equal quarterly installments on July 2, 2026, October 2, 2026, January 2, 2027, April 2, 2027, July 2, 2027, and October 2, 2027, subject to continued service.

All share amounts in this Form 4 reflect a 1-for-20 reverse stock split effected on April 23, 2026.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The RSUs vest over an eighteen (18) month period beginning September 1, 2025, with six (6) months of service-based vesting deemed satisfied as of February 2, 2026, and the remaining units vesting in equal installments May 2, 2026, August 2, 2026, November 2, 2026, and February 2, 2027, subject to continued service.

These securities are held by Jennifer D.H. Stiefel, the spouse of the reporting person. For purposes of Section 16 of the Exchange Act, the reporting person disclaims beneficial ownership of any such securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

All share amounts in this Form 4 reflect a 1-for-20 reverse stock split effected on April 23, 2026.

Of the RSUs granted on October 1, 2025, 125 units were vested as of September 1, 2025. The remaining 500 units vest in equal quarterly installments over twelve (12) months beginning September 1, 2025, of which 375 units vested and settled on February 2, 2026. The remaining units vest in equal installments on May 2, 2026 and August 2, 2026, subject to continued service.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

These securities are held by Jennifer D.H. Stiefel, the spouse of the reporting person. For purposes of Section 16 of the Exchange Act, the reporting person disclaims beneficial ownership of any such securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

All share amounts in this Form 4 reflect a 1-for-20 reverse stock split effected on April 23, 2026.

The RSUs vest over an eighteen (18) month period beginning September 1, 2025, with six (6) months of service-based vesting deemed satisfied as of February 2, 2026, and the remaining units vesting in equal installments May 2, 2026, August 2, 2026, November 2, 2026, and February 2, 2027, subject to continued service.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

All share amounts in this Form 4 reflect a 1-for-20 reverse stock split effected on April 23, 2026.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

Includes 4 shares beneficially owned through American Estate and Trust, LC FBO Justin Stiefel IRA account

All share amounts in this Form 4 reflect a 1-for-20 reverse stock split effected on April 23, 2026.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The RSUs vest over an eighteen (18) month period beginning December 10, 2025, with two (2) months of service-based vesting satisfied as of February 2, 2026. The remaining units vest in equal installments on May 2, 2026, August 2, 2026, November 2, 2026, and February 2, 2027, subject to continued service.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

All share amounts in this Form 4 reflect a 1-for-20 reverse stock split effected on April 23, 2026.

The RSUs vest over an eighteen (18) month period beginning September 1, 2025, with six (6) months of service-based vesting deemed satisfied as of February 2, 2026, and the remaining units vesting in equal installments May 2, 2026, August 2, 2026, November 2, 2026, and February 2, 2027, subject to continued service.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Includes 4 shares beneficially owned through American Estate and Trust, LC FBO Justin Stiefel IRA account

All share amounts in this Form 4 reflect a 1-for-20 reverse stock split effected on April 23, 2026.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

These securities are held by Justin B. Stiefel, the spouse of the reporting person. For purposes of Section 16 of the Exchange Act, the reporting person disclaims beneficial ownership of any such securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

These securities are held by Jennifer D.H. Stiefel, the spouse of the reporting person. For purposes of Section 16 of the Exchange Act, the reporting person disclaims beneficial ownership of any such securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The RSUs vest over an eighteen (18) month period beginning September 1, 2025, with six (6) months of service-based vesting deemed satisfied as of February 2, 2026, and the remaining units vesting in equal installments May 2, 2026, August 2, 2026, November 2, 2026, and February 2, 2027, subject to continued service.

These securities are held by Justin B. Stiefel, the spouse of the reporting person. For purposes of Section 16 of the Exchange Act, the reporting person disclaims beneficial ownership of any such securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

These securities are held by Justin B. Stiefel, the spouse of the reporting person. For purposes of Section 16 of the Exchange Act, the reporting person disclaims beneficial ownership of any such securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

On January 2, 2026, the reporting person was granted 15,000 RSUs, which vest in equal quarterly installments over a two-year period, subject to the terms of the applicable award agreement.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

On January 2, 2026, the reporting person was granted 15,000 RSUs, which vest in equal quarterly installments over a two-year period, subject to the terms of the applicable award agreement.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Includes 13 shares beneficially owned through American Estate and Trust, LC FBO Jennifer Stiefel IRA account

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Includes 86 shares beneficially owned through American Estate and Trust, LC FBO Justin Stiefel IRA account

These securities are held by Justin B. Stiefel, the spouse of the reporting person. For purposes of Section 16 of the Exchange Act, the reporting person disclaims beneficial ownership of any such securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

Of the restricted stock units granted on October 1, 2025, 2,500 RSUs satisfied the service-based vesting requirement as of the commencement of the vesting schedule on September 1, 2025. The remaining 10,000 RSUs vest in equal quarterly installments over a twelve (12) month period beginning September 1, 2025. Settlement of such RSUs was deferred until no earlier than forty-five (45) days following the effectiveness of the Company's Form S-8 registration statement. On February 2, 2026, a total of 7,500 restricted stock units, consisting of such 2,500 RSUs and 5,000 RSUs representing six (6) months of time-based vesting, vested and settled. The remaining units vest in equal installments every three months thereafter, subject to continued service.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The RSUs vest over an eighteen (18) month period beginning September 1, 2025, with six (6) months of service-based vesting deemed satisfied as of February 2, 2026, and the remaining units vesting in equal installments every three months thereafter, subject to continued service.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The RSUs vest over an eighteen (18) month period beginning September 1, 2025, with six (6) months of service-based vesting deemed satisfied as of February 2, 2026, and the remaining units vesting in equal installments every three months thereafter, subject to continued service.

These securities are held by Jennifer D.H. Stiefel, the spouse of the reporting person. For purposes of Section 16 of the Exchange Act, the reporting person disclaims beneficial ownership of any such securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The RSUs vest in equal quarterly installments over a two-year period, with one-eighth (1/8) of the RSUs vesting on each quarterly vesting date beginning January 2, 2026, subject to the terms of the applicable award agreement. Settlement of vested RSUs will occur upon the 45th calendar day following the effectiveness of the issuer's Form S-8 registration statement, which became effective on December 19, 2025, and only to the extent the RSUs have vested as of the applicable settlement date.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Includes 13 shares beneficially owned through American Estate and Trust, LC FBO Jennifer Stiefel IRA account

These securities are held by Jennifer D.H. Stiefel, the spouse of the reporting person. For purposes of Section 16 of the Exchange Act, the reporting person disclaims beneficial ownership of any such securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The RSUs vest over an eighteen (18) month period beginning December 10, 2025, with two (2) months of service-based vesting deemed satisfied as of February 2, 2026, and the remaining units vesting in equal installments every three months thereafter, subject to continued service.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

Includes 13 shares beneficially owned through American Estate and Trust, LC FBO Jennifer Stiefel IRA account

These securities are held by Jennifer D.H. Stiefel, the spouse of the reporting person. For purposes of Section 16 of the Exchange Act, the reporting person disclaims beneficial ownership of any such securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

Includes 86 shares beneficially owned through American Estate and Trust, LC FBO Justin Stiefel IRA account

These securities are held by Justin B. Stiefel, the spouse of the reporting person. For purposes of Section 16 of the Exchange Act, the reporting person disclaims beneficial ownership of any such securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that such reporting person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

Includes 13 shares beneficially owned through American Estate and Trust, LC FBO Jennifer Stiefel IRA account

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.

The RSUs vest in equal quarterly installments over a two-year period, with one-eighth (1/8) of the RSUs vesting on each quarterly vesting date beginning January 2, 2026, subject to the terms of the applicable award agreement. Settlement of vested RSUs will occur upon the 45th calendar day following the effectiveness of the issuer's Form S-8 registration statement, which became effective on December 19, 2025, and only to the extent the RSUs have vested as of the applicable settlement date.

The reporting person relinquished the shares of Common Stock reported herein and the issuer cancelled such shares and returned them to issuer's treasury in exchange for remitting certain tax withholding obligations of the reporting person resulting from the vesting of the RSUs. As such, no shares of the issuer were sold by the reporting person.

Represents the per share closing price of the issuer's Common Stock on the applicable vesting date or, if there was no closing price on such date, the closing price on the trading date that was immediately prior to such vesting date.

Includes 86 shares beneficially owned through American Estate and Trust, LC FBO Justin Stiefel IRA account