AMPX

SEC source: 0001628280-24-043851 · wk-form4_1729895395.xml · derivative · entry 2

Chu Steven · CIK 0001296381 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 173,554

Underlying: Common stock · 173,554 shares

Expires 2027-12-12

F1 · kind: On October 23, 2024, Amprius, Inc. ("Amprius Holdings") voluntarily liquidated and dissolved and distributed to its stockholders on a pro rata basis an aggregate of 57,195,926 shares of the Issuer's common stock (the "Liquidating Distribution"). In connection with the Liquidating Distribution, the Issuer assumed Amprius Holdings' outstanding options to purchase shares of Amprius Holdings' Class A common stock (the "Holdings Options") granted under the Amprius, Inc. 2008 Stock Plan and the Amprius, Inc. Second Equity Incentive Plan (the "Option Assumption"). As a result of the Option Assumption, each Holdings Option held by the Reporting Person became an option to purchase a number of shares of the Issuer's common stock , subject to certain adjustments to such options to comply with the requirements of U.S. Internal Revenue Code treasury regulation relating to equity grant assumptions.

F4 · price: Received in connection with the Option Assumption in exchange for stock options to acquire 250,000 shares of Amprius Holdings' Class A common stock at an exercise price of $0.43 per share.

F2 · derivative.exercise_date: The options are fully vested.

SEC source: 0001628280-24-043851 · wk-form4_1729895395.xml · derivative · entry 1

Chu Steven · CIK 0001296381 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 173,554

Underlying: Common stock · 173,554 shares

Expires 2034-09-26

F1 · kind: On October 23, 2024, Amprius, Inc. ("Amprius Holdings") voluntarily liquidated and dissolved and distributed to its stockholders on a pro rata basis an aggregate of 57,195,926 shares of the Issuer's common stock (the "Liquidating Distribution"). In connection with the Liquidating Distribution, the Issuer assumed Amprius Holdings' outstanding options to purchase shares of Amprius Holdings' Class A common stock (the "Holdings Options") granted under the Amprius, Inc. 2008 Stock Plan and the Amprius, Inc. Second Equity Incentive Plan (the "Option Assumption"). As a result of the Option Assumption, each Holdings Option held by the Reporting Person became an option to purchase a number of shares of the Issuer's common stock , subject to certain adjustments to such options to comply with the requirements of U.S. Internal Revenue Code treasury regulation relating to equity grant assumptions.

F3 · price: Received in connection with the Option Assumption in exchange for stock options to acquire 250,000 shares of Amprius Holdings' Class A common stock at an exercise price of $0.54 per share.

F2 · derivative.exercise_date: The options are fully vested.

SEC source: 0001628280-24-043858 · wk-form4_1729895682.xml · derivative · entry 3

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,768

Underlying: Common stock · 27,768 shares

Expires 2027-03-15

F3 · kind: In connection with the Liquidating Distribution, the Issuer assumed Amprius Holdings' outstanding options to purchase shares of Amprius Holdings' Class A common stock (the "Holdings Options") granted under the Amprius, Inc. 2008 Stock Plan and the Amprius, Inc. Second Equity Incentive Plan (the "Option Assumption"). As a result of the Option Assumption, each Holdings Option held by the Reporting Person became an option to purchase a number of shares of the Issuer's common stock, subject to certain adjustments to the terms of such options to comply with the requirements of U.S. Internal Revenue Code treasury regulation relating to equity grant assumptions.

F6 · price: Received in connection with the Option Assumption in exchange for stock options to acquire 40,000 shares of Amprius Holdings' Class A common stock at an exercise price of $0.43 per share.

F4 · derivative.exercise_date: The options are fully vested.

SEC source: 0001628280-24-043858 · wk-form4_1729895682.xml · derivative · entry 2

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,471

Underlying: Common stock · 3,471 shares

Expires 2025-03-17

F3 · kind: In connection with the Liquidating Distribution, the Issuer assumed Amprius Holdings' outstanding options to purchase shares of Amprius Holdings' Class A common stock (the "Holdings Options") granted under the Amprius, Inc. 2008 Stock Plan and the Amprius, Inc. Second Equity Incentive Plan (the "Option Assumption"). As a result of the Option Assumption, each Holdings Option held by the Reporting Person became an option to purchase a number of shares of the Issuer's common stock, subject to certain adjustments to the terms of such options to comply with the requirements of U.S. Internal Revenue Code treasury regulation relating to equity grant assumptions.

F5 · price: Received in connection with the Option Assumption in exchange for stock options to acquire 5,000 shares of Amprius Holdings' Class A common stock at an exercise price of $0.68 per share.

F4 · derivative.exercise_date: The options are fully vested.

SEC source: 0001628280-24-039578 · wk-form4_1725578202.xml · nonDerivative · entry 6

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,195,000

F6 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $0.75 to $0.8999, 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 range set forth above.

F3 · ownership.nature: The shares are owned by Elizabeth Mirro as trustee of the Kensington Capital Trust dated 6/27/20. Elizabeth Mirro is the reporting person's spouse. The reporting person disclaims beneficial ownership of these securities.

SEC source: 0001628280-24-039578 · wk-form4_1725578202.xml · nonDerivative · entry 5

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,073,042

F6 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $0.75 to $0.8999, 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 range set forth above.

F2 · ownership.nature: The securities are owned by Kensington Capital Partners, LLC, of which the reporting person is the managing member. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001628280-24-039575 · wk-form4_1725578058.xml · nonDerivative · entry 2

Amprius, Inc. · CIK 0001946058 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,195,997

F1 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $0.95 to $0.9501, 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 range set forth above.

SEC source: 0001628280-24-039578 · wk-form4_1725578202.xml · nonDerivative · entry 4

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,335,000

F5 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $0.9013 to $0.995, 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 range set forth above.

F3 · ownership.nature: The shares are owned by Elizabeth Mirro as trustee of the Kensington Capital Trust dated 6/27/20. Elizabeth Mirro is the reporting person's spouse. The reporting person disclaims beneficial ownership of these securities.

SEC source: 0001628280-24-039578 · wk-form4_1725578202.xml · nonDerivative · entry 3

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,183,042

F4 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $0.9035 to $1.01, 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 range set forth above.

F2 · ownership.nature: The securities are owned by Kensington Capital Partners, LLC, of which the reporting person is the managing member. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001628280-24-039575 · wk-form4_1725578058.xml · nonDerivative · entry 1

Amprius, Inc. · CIK 0001946058 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,209,252

SEC source: 0001628280-24-039578 · wk-form4_1725578202.xml · nonDerivative · entry 2

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,510,000

F1 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $0.9501 to $1.07, 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 range set forth above.

F3 · ownership.nature: The shares are owned by Elizabeth Mirro as trustee of the Kensington Capital Trust dated 6/27/20. Elizabeth Mirro is the reporting person's spouse. The reporting person disclaims beneficial ownership of these securities.

SEC source: 0001628280-24-039578 · wk-form4_1725578202.xml · nonDerivative · entry 1

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,333,042

F1 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $0.9501 to $1.07, 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 range set forth above.

F2 · ownership.nature: The securities are owned by Kensington Capital Partners, LLC, of which the reporting person is the managing member. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001628280-24-038250 · wk-form4_1724360255.xml · nonDerivative · entry 1

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 386,168

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.03 to $1.0523, 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 range set forth above.

F3 · balance_after: Includes 327,749 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-038252 · wk-form4_1724360522.xml · nonDerivative · entry 1

Sun Kang · CIK 0001476220 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,350,753

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.03 to $1.0523, 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 range set forth above.

F3 · balance_after: Includes 1,242,211 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-038259 · wk-form4_1724360778.xml · nonDerivative · entry 1

Wallach Sandra · CIK 0001698362 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 713,300

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.03 to $1.0523, 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 range set forth above.

F3 · balance_after: Includes 655,987 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-038255 · wk-form4_1724360638.xml · nonDerivative · entry 1

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,528,251

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.03 to $1.0523, 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 range set forth above.

F3 · balance_after: Includes 489,064 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-037295 · wk-form4_1723671137.xml · nonDerivative · entry 1

SATTERTHWAITE LIVINGSTON · CIK 0001517394 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 291,639

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest in three equal annual installments on August 13, 2025, August 13, 2026 and August 13, 2027, subject to the reporting person's continued service on each applicable vesting date.

F2 · balance_after: Includes 291,639 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001140361-24-034256 · form4.xml · derivative · entry 4

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 4,700,000 shares

Expires 2027-09-14

F3 · derivative.exercise_price: Pursuant to the Issuer's offer (the "Offer") to holders of its outstanding Private Warrants, the Issuer offered to exchange 0.197 shares of the Issuer's common stock for each Private Warrant exercisable for one share of the Issuer's common stock upon the terms set forth in the Issuer's Offer to Exchange Private Warrants to Acquire Common Stock filed as an exhibit to the Issuer's Schedule TO filed with the Securities and Exchange Commission on June 24, 2024.

F4 · price: The securities were in September 2022 distributed in-kind, pro-rata and for no additional consideration to the members (one of whom was Kensington Capital Partners, LLC) of Kensington Capital Sponsor IV, LLC in connection with its liquidating distribution.

F2 · ownership.nature: The securities are owned by Kensington Capital Partners, LLC, of which the reporting person is the managing member. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001140361-24-034256 · form4.xml · nonDerivative · entry 1

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,393,042

F1 · price: The reporting person received 925,900 shares of common stock in exchange for warrants to purchase 4,700,000 shares of common stock. The warrants were referred to as "Private Warrants" of the Issuer.

F2 · ownership.nature: The securities are owned by Kensington Capital Partners, LLC, of which the reporting person is the managing member. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001628280-24-028383 · wk-form4_1718408651.xml · nonDerivative · entry 6

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,585,000

F7 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $1.08 to $1.22, 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 range set forth above.

F3 · ownership.nature: The shares are owned by Elizabeth Mirro as trustee of the Kensington Capital Trust dated 6/27/20. Elizabeth Mirro is the reporting person's spouse. The reporting person disclaims beneficial ownership of these securities.

SEC source: 0001628280-24-028383 · wk-form4_1718408651.xml · nonDerivative · entry 5

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,467,142

F6 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $1.08 to $1.23, 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 range set forth above.

F2 · ownership.nature: The securities are owned by Kensington Capital Partners, LLC, of which the reporting person is the managing member. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001628280-24-028383 · wk-form4_1718408651.xml · nonDerivative · entry 4

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,650,000

F5 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $1.16 to $1.26, 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 range set forth above.

F3 · ownership.nature: The shares are owned by Elizabeth Mirro as trustee of the Kensington Capital Trust dated 6/27/20. Elizabeth Mirro is the reporting person's spouse. The reporting person disclaims beneficial ownership of these securities.

SEC source: 0001628280-24-028383 · wk-form4_1718408651.xml · nonDerivative · entry 3

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,662,142

F4 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $1.15 to $1.265, 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 range set forth above.

F2 · ownership.nature: The securities are owned by Kensington Capital Partners, LLC, of which the reporting person is the managing member. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001628280-24-028383 · wk-form4_1718408651.xml · nonDerivative · entry 2

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,715,000

F1 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $1.255 to $1.35, 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 range set forth above.

F3 · ownership.nature: The shares are owned by Elizabeth Mirro as trustee of the Kensington Capital Trust dated 6/27/20. Elizabeth Mirro is the reporting person's spouse. The reporting person disclaims beneficial ownership of these securities.

SEC source: 0001628280-24-028383 · wk-form4_1718408651.xml · nonDerivative · entry 1

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,857,142

F1 · price: The price reported in Column 4 is a cumulative average price. These shares were sold in multiple transactions at prices ranging from $1.255 to $1.35, 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 range set forth above.

F2 · ownership.nature: The securities are owned by Kensington Capital Partners, LLC, of which the reporting person is the managing member. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

SEC source: 0001628280-24-027365 · wk-form4_1717807298.xml · nonDerivative · entry 1

DIXON DONALD R · CIK 0001045434 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,895

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of issuer's common stock. 100% of the restricted stock units vest on the earlier of (i) the one-year anniversary of the date the restricted stock units were granted and (ii) the day before the next annual meeting of stockholders, subject to the reporting person's continued service as of the vesting date.

F2 · balance_after: Includes 125,000 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-027368 · wk-form4_1717807350.xml · nonDerivative · entry 1

MIRRO JUSTIN E · CIK 0001641982 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,895

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of issuer's common stock. 100% of the restricted stock units vest on the earlier of (i) the one-year anniversary of the date the restricted stock units were granted and (ii) the day before the next annual meeting of stockholders, subject to the reporting person's continued service as of the vesting date.

F2 · balance_after: Includes 125,000 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-027372 · wk-form4_1717807438.xml · nonDerivative · entry 1

Chu Steven · CIK 0001296381 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,395

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of issuer's common stock. 100% of the restricted stock units vest on the earlier of (i) the one-year anniversary of the date the restricted stock units were granted and (ii) the day before the next annual meeting of stockholders, subject to the reporting person's continued service as of the vesting date.

F2 · balance_after: Includes 125,000 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-027374 · wk-form4_1717807480.xml · nonDerivative · entry 1

BAYLESS KATHLEEN A · CIK 0001230569 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 161,253

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of issuer's common stock. 100% of the restricted stock units vest on the earlier of (i) the one-year anniversary of the date the restricted stock units were granted and (ii) the day before the next annual meeting of stockholders, subject to the reporting person's continued service as of the vesting date.

F2 · balance_after: Includes 148,175 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-027370 · wk-form4_1717807396.xml · nonDerivative · entry 1

Gustanski Mary · CIK 0001725164 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 146,396

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of issuer's common stock. 100% of the restricted stock units vest on the earlier of (i) the one-year anniversary of the date the restricted stock units were granted and (ii) the day before the next annual meeting of stockholders, subject to the reporting person's continued service as of the vesting date.

F2 · balance_after: Includes 114,583 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-027377 · wk-form4_1717807520.xml · nonDerivative · entry 1

HSIEH Wen Hsuan · CIK 0001835160 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,895

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of issuer's common stock. 100% of the restricted stock units vest on the earlier of (i) the one-year anniversary of the date the restricted stock units were granted and (ii) the day before the next annual meeting of stockholders, subject to the reporting person's continued service as of the vesting date.

F2 · balance_after: Includes 125,000 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-24-000003 · wk-form4_1716599288.xml · nonDerivative · entry 2

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 394,968

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F3 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.31 to $1.3824, 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 range set forth above.

F4 · balance_after: Includes 351,159 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001476220-24-000004 · wk-form4_1716599201.xml · nonDerivative · entry 2

Sun Kang · CIK 0001476220 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,384,086

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F3 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.31 to $1.3824, 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 range set forth above.

F4 · balance_after: Includes 1,330,941 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001698362-24-000003 · wk-form4_1716598944.xml · nonDerivative · entry 2

Wallach Sandra · CIK 0001698362 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 730,906

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F3 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.31 to $1.3824, 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 range set forth above.

F4 · balance_after: Includes 702,844 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001942459-24-000015 · wk-form4_1716599100.xml · nonDerivative · entry 2

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,546,895

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F3 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.31 to $1.3824, 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 range set forth above.

F4 · balance_after: Includes 523,997 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001940928-24-000003 · wk-form4_1716599288.xml · nonDerivative · entry 1

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 399,089

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.31 to $1.345, 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 range set forth above.

SEC source: 0001476220-24-000004 · wk-form4_1716599201.xml · nonDerivative · entry 1

Sun Kang · CIK 0001476220 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,399,697

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.31 to $1.345, 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 range set forth above.

SEC source: 0001698362-24-000003 · wk-form4_1716598944.xml · nonDerivative · entry 1

Wallach Sandra · CIK 0001698362 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 739,151

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.31 to $1.345, 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 range set forth above.

SEC source: 0001942459-24-000015 · wk-form4_1716599100.xml · nonDerivative · entry 1

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,555,626

F1 · kind: This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.31 to $1.345, 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 range set forth above.

SEC source: 0001942459-24-000011 · wk-form4_1713218014.xml · derivative · entry 2

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1

Underlying: Common stock · 1,007,867 shares

Expires 2027-03-15

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.

SEC source: 0001942459-24-000011 · wk-form4_1713218014.xml · nonDerivative · entry 1

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,566,797

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.

F1 · balance_after: Includes 558,930 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001942459-24-000009 · wk-form4_1712175188.xml · derivative · entry 3

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,007,868

Underlying: Common stock · 125,983 shares

Expires 2027-03-15

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.

F1 · kind: The exercises and sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 12, 2023.

SEC source: 0001942459-24-000009 · wk-form4_1712175188.xml · nonDerivative · entry 2

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 558,930

F1 · kind: The exercises and sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 12, 2023.

F2 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $2.29 to $2.46, 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 range set forth above.

F3 · balance_after: Includes 558,930 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001942459-24-000009 · wk-form4_1712175188.xml · nonDerivative · entry 1

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 684,913

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.

F1 · kind: The exercises and sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 12, 2023.

SEC source: 0001628280-24-011987 · wk-form4_1710891188.xml · nonDerivative · entry 1

Stefan Constantin Ionel · CIK 0001940928 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 404,361

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of the issuer's common stock. 1/16th of shares subject to award will vest on May 20, 2024 and quarterly thereafter on each August 20, November 20, February 20 and May 20, subject to the reporting person's continued service on each such date, until the award is fully vested on February 20, 2028.

F2 · balance_after: Includes 374,570 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-011980 · wk-form4_1710890923.xml · nonDerivative · entry 1

Sun Kang · CIK 0001476220 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,419,670

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of the issuer's common stock. 1/16th of shares subject to award will vest on May 20, 2024 and quarterly thereafter on each August 20, November 20, February 20 and May 20, subject to the reporting person's continued service on each such date, until the award is fully vested on February 20, 2028.

F2 · balance_after: Includes 1,419,670 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-011982 · wk-form4_1710891006.xml · nonDerivative · entry 1

Wallach Sandra · CIK 0001698362 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 749,700

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of the issuer's common stock. 1/16th of shares subject to award will vest on May 20, 2024 and quarterly thereafter on each August 20, November 20, February 20 and May 20, subject to the reporting person's continued service on each such date, until the award is fully vested on February 20, 2028.

F2 · balance_after: Includes 749,700 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001628280-24-011985 · wk-form4_1710891126.xml · nonDerivative · entry 1

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 558,930

F1 · shares: The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of the issuer's common stock. 1/16th of shares subject to award will vest on May 20, 2024 and quarterly thereafter on each August 20, November 20, February 20 and May 20, subject to the reporting person's continued service on each such date, until the award is fully vested on February 20, 2028.

F2 · balance_after: Includes 558,930 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

SEC source: 0001942459-24-000007 · wk-form4_1709850983.xml · derivative · entry 6

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,133,851

Underlying: Common stock · 40,200 shares

Expires 2027-03-15

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.

F1 · kind: The exercises and sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 12, 2023.

SEC source: 0001942459-24-000007 · wk-form4_1709850983.xml · nonDerivative · entry 4

Bornstein Jonathan · CIK 0001942459 · President of Amprius Lab

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The exercises and sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 12, 2023.

F3 · price: The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $2.72 to $2.90, 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 range set forth above.