SEC Filings for Amprius Technologies, Inc. (AMPX)

Last updated: 2026-03-26 21:10 UTC | Total filings: 450

Browse the latest SEC filings and forms submitted by Amprius Technologies, Inc. (AMPX). Access annual reports, quarterly statements, and other official disclosures.

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Form Filing Date Description Link
SCHEDULE 13G/A March 26, 2026 - View Document
4 March 24, 2026 FORM 4 View Document
144 March 23, 2026 - View Document
4 March 13, 2026 FORM 4 View Document
4/A March 13, 2026 FORM 4/A View Document
144 March 12, 2026 - View Document
144 March 12, 2026 - View Document
4 March 12, 2026 FORM 4 View Document
144 March 10, 2026 - View Document
4 March 6, 2026 FORM 4 View Document
S-8 March 6, 2026 S-8 View Document
10-K March 6, 2026 10-K View Document
4 March 6, 2026 FORM 4 View Document
4 March 6, 2026 FORM 4 View Document
8-K March 4, 2026 8-K View Document
4 Feb. 24, 2026 FORM 4 View Document
144 Feb. 24, 2026 - View Document
144 Feb. 24, 2026 - View Document
4 Feb. 24, 2026 FORM 4 View Document
8-K Feb. 3, 2026 8-K View Document
4 Jan. 30, 2026 FORM 4 View Document
4 Jan. 23, 2026 FORM 4 View Document
144 Jan. 21, 2026 - View Document
4 Jan. 20, 2026 FORM 4 View Document
144 Jan. 16, 2026 - View Document
4 Jan. 14, 2026 FORM 4 View Document
8-K Jan. 12, 2026 8-K View Document
144 Jan. 12, 2026 - View Document
4 Dec. 22, 2025 FORM 4 View Document
8-K Dec. 22, 2025 8-K View Document
4 Dec. 15, 2025 FORM 4 View Document
144 Dec. 11, 2025 - View Document
4 Nov. 25, 2025 FORM 4 View Document
144 Nov. 25, 2025 - View Document
144 Nov. 25, 2025 - View Document
4 Nov. 25, 2025 FORM 4 View Document
4 Nov. 19, 2025 FORM 4 View Document
144 Nov. 17, 2025 - View Document
8-K Nov. 6, 2025 8-K View Document
10-Q Nov. 6, 2025 10-Q View Document
SCHEDULE 13G Oct. 30, 2025 - View Document
4 Oct. 8, 2025 FORM 4 View Document
3 Oct. 8, 2025 FORM 3 View Document
8-K Oct. 6, 2025 8-K View Document
8-K Sept. 2, 2025 8-K View Document
4 Aug. 25, 2025 FORM 4 View Document
4 Aug. 25, 2025 FORM 4 View Document
144 Aug. 25, 2025 - View Document
4 Aug. 25, 2025 FORM 4 View Document
144 Aug. 25, 2025 - View Document
144 Aug. 25, 2025 - View Document
SCHEDULE 13G/A Aug. 14, 2025 - View Document
8-K Aug. 7, 2025 8-K View Document
10-Q Aug. 7, 2025 10-Q View Document
SCHEDULE 13G/A Aug. 6, 2025 - View Document
8-K June 18, 2025 8-K View Document
4 June 17, 2025 FORM 4 View Document
4 June 17, 2025 FORM 4 View Document
4 June 17, 2025 FORM 4 View Document
4 June 17, 2025 FORM 4 View Document
4 June 17, 2025 FORM 4 View Document
144 May 23, 2025 - View Document
4 May 23, 2025 FORM 4 View Document
4 May 23, 2025 FORM 4 View Document
4 May 23, 2025 FORM 4 View Document
144 May 23, 2025 - View Document
144 May 23, 2025 - View Document
SCHEDULE 13G/A May 15, 2025 - View Document
3/A May 12, 2025 FORM 3/A View Document
10-Q May 8, 2025 10-Q View Document
8-K May 8, 2025 8-K View Document
3 May 6, 2025 FORM 3 View Document
4 May 6, 2025 FORM 4 View Document
DEF 14A April 25, 2025 DEF 14A View Document
DEFA14A April 25, 2025 DEFA14A View Document
ARS April 25, 2025 ARS View Document
8-K April 23, 2025 8-K View Document
4 March 21, 2025 FORM 4 View Document
4 March 21, 2025 FORM 4 View Document
4 March 21, 2025 FORM 4 View Document
10-K March 20, 2025 10-K View Document
8-K March 20, 2025 8-K View Document
S-8 March 20, 2025 S-8 View Document
4 March 18, 2025 FORM 4 View Document
4 March 12, 2025 FORM 4 View Document
8-K March 4, 2025 8-K View Document
4 Feb. 24, 2025 FORM 4 View Document
4 Feb. 24, 2025 FORM 4 View Document
144 Feb. 24, 2025 - View Document
144 Feb. 24, 2025 - View Document
4 Feb. 24, 2025 FORM 4 View Document
4 Feb. 24, 2025 FORM 4 View Document
144 Feb. 24, 2025 - View Document
144 Feb. 24, 2025 - View Document
424B7 Dec. 9, 2024 424B7 View Document
4 Nov. 22, 2024 FORM 4 View Document
4 Nov. 22, 2024 FORM 4 View Document
4 Nov. 22, 2024 FORM 4 View Document
4 Nov. 22, 2024 FORM 4 View Document
144 Nov. 21, 2024 - View Document
144 Nov. 21, 2024 - View Document
144 Nov. 21, 2024 - View Document
144 Nov. 21, 2024 - View Document
144 Nov. 21, 2024 - View Document
144 Nov. 20, 2024 - View Document
144 Nov. 12, 2024 - View Document
144 Nov. 8, 2024 - View Document
8-K Nov. 7, 2024 8-K View Document
10-Q Nov. 7, 2024 10-Q View Document
144 Nov. 7, 2024 - View Document
8-K Nov. 5, 2024 8-K View Document
8-K Oct. 29, 2024 8-K View Document
SC 13G Oct. 28, 2024 SC 13G View Document
SC 13D Oct. 28, 2024 SC 13D View Document
SC 13D Oct. 25, 2024 SC 13D View Document
SC 13D/A Oct. 25, 2024 SC 13D/A View Document
4 Oct. 25, 2024 FORM 4 View Document
144 Oct. 25, 2024 - View Document
4 Oct. 25, 2024 FORM 4 View Document
4 Oct. 25, 2024 FORM 4 View Document
4 Oct. 25, 2024 FORM 4 View Document
4 Oct. 25, 2024 FORM 4 View Document
SC 13G Oct. 25, 2024 SC 13G View Document
S-8 Oct. 23, 2024 S-8 View Document
424B7 Oct. 23, 2024 424B7 View Document
8-K Oct. 23, 2024 8-K View Document
8-K Sept. 20, 2024 8-K View Document
8-K Sept. 12, 2024 8-K View Document
4 Sept. 5, 2024 FORM 4 View Document
4 Sept. 5, 2024 FORM 4 View Document
144 Sept. 4, 2024 - View Document
144 Sept. 3, 2024 - View Document
4 Aug. 22, 2024 FORM 4 View Document
144 Aug. 22, 2024 - View Document
4 Aug. 22, 2024 FORM 4 View Document
144 Aug. 22, 2024 - View Document
144 Aug. 22, 2024 - View Document
144 Aug. 22, 2024 - View Document
4 Aug. 22, 2024 FORM 4 View Document
4 Aug. 22, 2024 FORM 4 View Document
3 Aug. 14, 2024 FORM 3 View Document
4 Aug. 14, 2024 FORM 4 View Document
8-K Aug. 14, 2024 8-K View Document
10-Q Aug. 9, 2024 10-Q View Document
8-K Aug. 8, 2024 8-K View Document
4 July 25, 2024 FORM 4 View Document
SC TO-I/A July 24, 2024 SC TO-I/A View Document
424B3 July 8, 2024 424B3 View Document
EFFECT July 8, 2024 - View Document
SC TO-I/A July 3, 2024 SC TO-I/A View Document
S-4/A July 3, 2024 S-4/A View Document
SC TO-I June 24, 2024 SC TO-I View Document
S-4 June 24, 2024 S-4 View Document
4 June 14, 2024 FORM 4 View Document
SC TO-I/A June 13, 2024 SC TO-I/A View Document
144 June 12, 2024 - View Document
SC TO-I/A June 12, 2024 SC TO-I/A View Document
4 June 7, 2024 FORM 4 View Document
4 June 7, 2024 FORM 4 View Document
4 June 7, 2024 FORM 4 View Document
4 June 7, 2024 FORM 4 View Document
4 June 7, 2024 FORM 4 View Document
4 June 7, 2024 FORM 4 View Document
8-K June 6, 2024 8-K View Document
SC TO-I/A June 4, 2024 SC TO-I/A View Document
CORRESP June 3, 2024 - View Document
144 May 28, 2024 - View Document
144 May 28, 2024 - View Document
144 May 28, 2024 - View Document
144 May 28, 2024 - View Document
4 May 24, 2024 FORM 4 View Document
4 May 24, 2024 FORM 4 View Document
4 May 24, 2024 FORM 4 View Document
4 May 24, 2024 FORM 4 View Document
UPLOAD May 22, 2024 - View Document
8-K May 14, 2024 8-K View Document
424B3 May 13, 2024 424B3 View Document
424B3 May 13, 2024 424B3 View Document
SC TO-I May 13, 2024 SC TO-I View Document
10-Q May 9, 2024 10-Q View Document
8-K May 9, 2024 8-K View Document
DEF 14A April 25, 2024 DEF 14A View Document
DEFA14A April 25, 2024 DEFA14A View Document
ARS April 25, 2024 ARS View Document
4 April 15, 2024 FORM 4 View Document
4 April 3, 2024 FORM 4 View Document
144 April 2, 2024 - View Document
8-K April 1, 2024 8-K View Document
S-8 March 28, 2024 S-8 View Document
10-K March 28, 2024 10-K View Document
8-K March 21, 2024 8-K View Document
4 March 19, 2024 FORM 4 View Document
4 March 19, 2024 FORM 4 View Document
4 March 19, 2024 FORM 4 View Document
4 March 19, 2024 FORM 4 View Document
4 March 7, 2024 FORM 4 View Document
144 March 5, 2024 - View Document
4 Feb. 7, 2024 FORM 4 View Document
144 Feb. 6, 2024 - View Document
8-K Jan. 16, 2024 8-K View Document
4 Jan. 4, 2024 FORM 4 View Document
144 Jan. 2, 2024 - View Document
4 Dec. 15, 2023 FORM 4 View Document
144 Dec. 15, 2023 - View Document
144 Dec. 15, 2023 - View Document
4 Dec. 14, 2023 FORM 4 View Document
144 Dec. 13, 2023 - View Document
4 Dec. 7, 2023 FORM 4 View Document
4 Dec. 7, 2023 FORM 4 View Document
144 Dec. 5, 2023 - View Document
4 Nov. 30, 2023 FORM 4 View Document
144 Nov. 27, 2023 - View Document
4 Nov. 21, 2023 FORM 4 View Document
10-Q Nov. 13, 2023 10-Q View Document
4 Nov. 9, 2023 FORM 4 View Document
8-K Nov. 9, 2023 8-K View Document
144 Nov. 7, 2023 - View Document
EFFECT Oct. 27, 2023 - View Document
POS AM Oct. 27, 2023 POS AM View Document
RW Oct. 27, 2023 RW View Document
424B3 Oct. 23, 2023 424B3 View Document
8-K Oct. 23, 2023 8-K View Document
4 Oct. 12, 2023 FORM 4 View Document
424B3 Oct. 10, 2023 424B3 View Document
144 Oct. 10, 2023 - View Document
EFFECT Oct. 10, 2023 - View Document
UPLOAD Oct. 5, 2023 - View Document
EFFECT Oct. 5, 2023 - View Document
EFFECT Oct. 5, 2023 - View Document
CORRESP Oct. 5, 2023 - View Document
S-3 Oct. 3, 2023 S-3 View Document
POS AM Oct. 3, 2023 POS AM View Document
POS AM Oct. 3, 2023 POS AM View Document
8-K Oct. 3, 2023 8-K View Document
424B3 Oct. 3, 2023 424B3 View Document
424B3 Sept. 21, 2023 424B3 View Document
424B3 Sept. 21, 2023 424B3 View Document
424B3 Sept. 21, 2023 424B3 View Document
8-K Sept. 21, 2023 8-K View Document
4 Sept. 21, 2023 FORM 4 View Document
424B3 Sept. 21, 2023 424B3 View Document
424B3 Sept. 21, 2023 424B3 View Document
144 Sept. 19, 2023 - View Document
4 Sept. 18, 2023 FORM 4 View Document
144 Sept. 15, 2023 - View Document
144 Sept. 14, 2023 - View Document
4 Sept. 12, 2023 FORM 4 View Document
424B3 Aug. 11, 2023 424B3 View Document
10-Q Aug. 11, 2023 10-Q View Document
424B3 Aug. 11, 2023 424B3 View Document
424B3 Aug. 11, 2023 424B3 View Document
8-K Aug. 10, 2023 8-K View Document
424B3 July 25, 2023 424B3 View Document
8-K July 25, 2023 8-K View Document
424B3 July 25, 2023 424B3 View Document
424B3 July 25, 2023 424B3 View Document
424B3 June 27, 2023 424B3 View Document
EFFECT June 26, 2023 - View Document
CORRESP June 22, 2023 - View Document
S-4/A June 21, 2023 S-4/A View Document
4 June 16, 2023 FORM 4 View Document
8-K June 15, 2023 8-K View Document
424B3 June 15, 2023 424B3 View Document
424B3 June 15, 2023 424B3 View Document
4 June 15, 2023 FORM 4 View Document
424B3 June 15, 2023 424B3 View Document
3 June 15, 2023 FORM 3 View Document
UPLOAD June 14, 2023 - View Document
4 June 12, 2023 FORM 4 View Document
4 June 12, 2023 FORM 4 View Document
4 June 12, 2023 FORM 4 View Document
4 June 12, 2023 FORM 4 View Document
4 June 12, 2023 FORM 4 View Document
424B3 June 9, 2023 424B3 View Document
424B3 June 9, 2023 424B3 View Document
424B3 June 9, 2023 424B3 View Document
8-K June 9, 2023 8-K View Document
S-4 June 7, 2023 S-4 View Document
424B3 May 12, 2023 424B3 View Document
424B3 May 12, 2023 424B3 View Document
424B3 May 12, 2023 424B3 View Document
SC 13D/A May 12, 2023 SC 13D/A View Document
10-Q May 11, 2023 10-Q View Document
424B3 May 10, 2023 424B3 View Document
424B3 May 10, 2023 424B3 View Document
424B3 May 10, 2023 424B3 View Document
8-K May 10, 2023 8-K View Document
8-K May 10, 2023 8-K View Document
4 May 3, 2023 FORM 4 View Document
ARS April 28, 2023 ARS View Document
DEFA14A April 27, 2023 DEFA14A View Document
424B3 April 27, 2023 424B3 View Document
424B3 April 27, 2023 424B3 View Document
424B3 April 27, 2023 424B3 View Document
4 April 27, 2023 FORM 4 View Document
3 April 27, 2023 FORM 3 View Document
8-K April 27, 2023 8-K View Document
DEF 14A April 27, 2023 DEF 14A View Document
8-K April 19, 2023 8-K View Document
424B3 April 19, 2023 424B3 View Document
424B3 April 19, 2023 424B3 View Document
424B3 April 19, 2023 424B3 View Document
EFFECT April 12, 2023 - View Document
424B3 April 11, 2023 424B3 View Document
UPLOAD April 11, 2023 - View Document
424B3 April 11, 2023 424B3 View Document
CORRESP April 10, 2023 - View Document
EFFECT April 7, 2023 - View Document
EFFECT April 7, 2023 - View Document
POS AM April 5, 2023 POS AM View Document
S-4 POS April 5, 2023 S-4 POS View Document
S-1 April 5, 2023 S-1 View Document
POS AM April 5, 2023 POS AM View Document
S-8 March 31, 2023 S-8 View Document
10-K March 30, 2023 10-K View Document
424B3 March 23, 2023 424B3 View Document
424B3 March 23, 2023 424B3 View Document
424B3 March 23, 2023 424B3 View Document
8-K March 23, 2023 8-K View Document
424B3 March 9, 2023 424B3 View Document
8-K March 9, 2023 8-K View Document
424B3 March 9, 2023 424B3 View Document
424B3 March 9, 2023 424B3 View Document
424B3 Feb. 7, 2023 424B3 View Document
424B3 Feb. 7, 2023 424B3 View Document
8-K Feb. 7, 2023 8-K View Document
424B3 Feb. 7, 2023 424B3 View Document
424B3 Jan. 12, 2023 424B3 View Document
424B3 Jan. 12, 2023 424B3 View Document
424B3 Jan. 12, 2023 424B3 View Document
8-K Jan. 12, 2023 8-K View Document
EFFECT Dec. 27, 2022 - View Document
424B3 Dec. 27, 2022 424B3 View Document
S-1/A Dec. 27, 2022 PART II FILING View Document
CORRESP Dec. 22, 2022 - View Document
4 Dec. 15, 2022 FORM 4 View Document
424B3 Dec. 5, 2022 424B3 View Document
CORRESP Dec. 2, 2022 - View Document
EFFECT Dec. 2, 2022 - View Document
CORRESP Nov. 29, 2022 - View Document
CORRESP Nov. 29, 2022 - View Document
S-1/A Nov. 16, 2022 S-1/A View Document
CORRESP Nov. 16, 2022 - View Document
S-1/A Nov. 16, 2022 S-1/A View Document
CORRESP Nov. 16, 2022 - View Document
S-8 Nov. 16, 2022 S-8 View Document
424B3 Nov. 16, 2022 424B3 View Document
8-K/A Nov. 16, 2022 8-K/A View Document
424B3 Nov. 14, 2022 424B3 View Document
10-Q Nov. 14, 2022 10-Q View Document
8-K Nov. 10, 2022 8-K View Document
UPLOAD Nov. 7, 2022 - View Document
S-1/A Oct. 25, 2022 S-1/A View Document
S-1/A Oct. 25, 2022 S-1/A View Document
CORRESP Oct. 24, 2022 - View Document
CORRESP Oct. 24, 2022 - View Document
8-K Oct. 20, 2022 8-K View Document
424B3 Oct. 20, 2022 424B3 View Document
UPLOAD Oct. 18, 2022 - View Document
UPLOAD Oct. 18, 2022 - View Document
SC 13G/A Oct. 7, 2022 SC 13G/A View Document
D Oct. 5, 2022 - View Document
S-1 Sept. 30, 2022 FORM S-1 View Document
S-1 Sept. 30, 2022 FORM S-1 View Document
8-K Sept. 28, 2022 8-K View Document
SC 13D/A Sept. 23, 2022 SC 13D/A View Document
SC 13D Sept. 19, 2022 SC 13D View Document
3 Sept. 16, 2022 FORM 3 SUBMISSION View Document
4 Sept. 16, 2022 FORM 4 SUBMISSION View Document
4 Sept. 16, 2022 FORM 4 SUBMISSION View Document
4 Sept. 16, 2022 FORM 4 SUBMISSION View Document
3 Sept. 16, 2022 FORM 3 SUBMISSION View Document
3 Sept. 16, 2022 FORM 3 SUBMISSION View Document
3 Sept. 16, 2022 FORM 3 SUBMISSION View Document
3 Sept. 16, 2022 FORM 3 SUBMISSION View Document
3 Sept. 16, 2022 FORM 3 SUBMISSION View Document
3 Sept. 16, 2022 FORM 3 SUBMISSION View Document
3 Sept. 16, 2022 FORM 3 SUBMISSION View Document
8-K Sept. 16, 2022 8-K View Document
4 Sept. 16, 2022 FORM 4 SUBMISSION View Document
4 Sept. 16, 2022 FORM 4 SUBMISSION View Document
4 Sept. 16, 2022 FORM 4 SUBMISSION View Document
4 Sept. 16, 2022 FORM 4 SUBMISSION View Document
4 Sept. 16, 2022 FORM 4 SUBMISSION View Document
4 Sept. 16, 2022 FORM 4 SUBMISSION View Document
25-NSE Sept. 15, 2022 - View Document
8-K Sept. 14, 2022 8-K View Document
8-K Sept. 14, 2022 FORM 8-K View Document
8-K Sept. 12, 2022 8-K View Document
8-K Sept. 9, 2022 8-K View Document
425 Sept. 7, 2022 425 View Document
8-K Sept. 7, 2022 8-K View Document
UPLOAD Sept. 6, 2022 - View Document
424B3 Sept. 1, 2022 424B3 View Document
EFFECT Sept. 1, 2022 - View Document
CORRESP Aug. 30, 2022 - View Document
CORRESP Aug. 22, 2022 - View Document
S-4/A Aug. 22, 2022 S-4/A View Document
UPLOAD Aug. 18, 2022 - View Document
10-Q Aug. 12, 2022 10-Q View Document
425 Aug. 10, 2022 425 View Document
S-4/A Aug. 10, 2022 S-4/A View Document
CORRESP Aug. 9, 2022 - View Document
UPLOAD Aug. 8, 2022 - View Document
425 Aug. 2, 2022 425 View Document
S-4/A July 25, 2022 S-4/A View Document
CORRESP July 25, 2022 - View Document
UPLOAD July 18, 2022 - View Document
425 July 12, 2022 425 View Document
425 June 30, 2022 425 View Document
425 June 29, 2022 425 View Document
425 June 23, 2022 425 View Document
S-4 June 21, 2022 S-4 View Document
SC 13G June 1, 2022 SC 13G View Document
10-Q May 17, 2022 10-Q View Document
NT 10-Q May 17, 2022 NT 10-Q View Document
SC 13D/A May 13, 2022 SC 13D/A View Document
8-K May 12, 2022 8-K View Document
425 May 12, 2022 425 View Document
8-K April 20, 2022 8-K View Document
SC 13D March 18, 2022 SC 13D View Document
3 March 16, 2022 FORM 3 View Document
SC 13G March 11, 2022 - View Document
8-K March 10, 2022 8-K View Document
8-K March 4, 2022 8-K View Document
424B4 March 2, 2022 424B4 View Document
CERT March 2, 2022 NYSE CERTIFICATION View Document
3 March 1, 2022 FORM 3 SUBMISSION View Document
3 March 1, 2022 FORM 3 SUBMISSION View Document
3 March 1, 2022 FORM 3 SUBMISSION View Document
3 March 1, 2022 FORM 3 SUBMISSION View Document
3 March 1, 2022 FORM 3 SUBMISSION View Document
3 March 1, 2022 FORM 3 SUBMISSION View Document
3 March 1, 2022 FORM 3 SUBMISSION View Document
3 March 1, 2022 FORM 3 SUBMISSION View Document
3 March 1, 2022 FORM 3 SUBMISSION View Document
3 March 1, 2022 FORM 3 SUBMISSION View Document
EFFECT March 1, 2022 - View Document
8-A12B March 1, 2022 8-A12B View Document
3 March 1, 2022 FORM 3 SUBMISSION View Document
CORRESP Feb. 25, 2022 - View Document
CORRESP Feb. 25, 2022 - View Document
S-1/A Feb. 23, 2022 S-1/A View Document
CORRESP Feb. 11, 2022 - View Document
UPLOAD Feb. 11, 2022 - View Document
S-1/A Feb. 11, 2022 S-1/A View Document
CORRESP Jan. 20, 2022 - View Document
S-1 Jan. 20, 2022 S-1 View Document
UPLOAD Jan. 11, 2022 - View Document
DRS Dec. 15, 2021 - View Document