Amprius Technologies, Inc. 13F holders
262 funds reported a position in Amprius Technologies, Inc. in their 13F for the quarter ended 30 June 2026, together 97.4 million shares worth $1.36 billion. Against the quarter before, 57 opened a position, 112 added, 63 trimmed and 44 sold out; together they bought a net 12.5 million shares. The largest holders: BlackRock, Inc., Vanguard Capital Management LLC and Morgan Stanley.
Funds holding262+16 on Q1 2026
Shares they held97.4Mworth $1.36 billion
Net bought on the quarter12.5M sharesabout $174.0 million at the funds' values
Funds buying to selling169 to 107opened or added, to cut or sold
Opened 57Added 112Held 27Trimmed 63Sold out 44
What each fund did in AMPX against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in AMPX in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,241 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 53 reported a position in Amprius Technologies, Inc.: 16 opened one, 12 added, 13 trimmed and 7 sold out, a net 64,776 shares sold.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 7 reported a position in Amprius Technologies, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Two Sigma Investments, 4.3 million shares worth $59.9 million, 0.0% of its reported book. In the quarter, 7 funds added or opened a position and 0 trimmed or sold out; together they bought a net 4.1 million shares, about $56.7 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Two Sigma Investments | 4,318,630 | $59.9 million | 0.0% | +812,555 | added | 30 June 2026 | 13F |
| Geode Capital Management | 3,520,655 | $48.8 million | 0.0% | +706,125 | added | 30 June 2026 | 13F |
| Citadel Advisors | 1,676,344 | $23.2 million | 0.0% | +237,684 | added | 30 June 2026 | 13F |
| Renaissance Technologies | 1,408,925 | $19.5 million | 0.0% | +1,049,400 | added | 30 June 2026 | 13F |
| Millennium Management | 1,208,017 | $16.7 million | 0.0% | +172,779 | added | 30 June 2026 | 13F |
| Point72 Asset Management | 1,139,811 | $15.8 million | 0.0% | +1,111,890 | added | 30 June 2026 | 13F |
| FMR LLC | 15,403 | $213,492 | 0.0% | +3,053 | added | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 11,335,092 | 11.64% | $157.1 million | 0.00% | +2,109,481 | 13F |
| Vanguard Capital Management LLC | 5,562,985 | 5.71% | $77.1 million | 0.00% | +654,110 | 13F |
| Morgan Stanley | 5,105,505 | 5.24% | $70.8 million | 0.00% | +1,943,338 | 13F |
| Two Sigma Investments, LP | 4,318,630 | 4.43% | $59.9 million | 0.05% | +812,555 | 13F |
| UBS Group AG | 4,072,269 | 4.18% | $56.4 million | 0.01% | +1,760,715 | 13F |
| Geode Capital Management, LLC | 3,520,655 | 3.61% | $48.8 million | 0.00% | +706,125 | 13F |
| Jane Street Group, LLC | 3,401,071 | 3.49% | $47.1 million | 0.03% | -759,585 | 13F |
| State Street Corp. | 3,240,285 | 3.33% | $44.9 million | 0.00% | +527,655 | 13F |
| Goldman Sachs Group Inc. | 2,542,294 | 2.61% | $35.2 million | 0.00% | +316,113 | 13F |
| Jupiter Asset Management Ltd | 2,133,397 | 2.19% | $29.6 million | 0.15% | new | 13F |
| LMR Partners LLP | 1,750,850 | 1.80% | $24.3 million | 0.21% | new | 13F |
| Citadel Advisors LLC | 1,676,344 | 1.72% | $23.2 million | 0.01% | +237,684 | 13F |
| Price T Rowe Associates Inc. | 1,635,883 | 1.68% | $22.7 million | 0.00% | -261,537 | 13F |
| Vanguard Portfolio Management LLC | 1,457,629 | 1.50% | $20.2 million | 0.00% | +384,233 | 13F |
| Hood River Capital Management LLC | 1,412,516 | 1.45% | $19.6 million | 0.14% | +463,369 | 13F |
| Renaissance Technologies LLC | 1,408,925 | 1.45% | $19.5 million | 0.03% | +1,049,400 | 13F |
| Driehaus Capital Management LLC | 1,345,269 | 1.38% | $18.6 million | 0.11% | -2,448,909 | 13F |
| Baird Financial Group, Inc. | 1,324,909 | 1.36% | $18.4 million | 0.03% | -260,189 | 13F |
| Healthcare of Ontario Pension Plan Trust Fund | 1,248,700 | 1.28% | $17.3 million | 0.03% | new | 13F |
| Northern Trust Corp. | 1,229,628 | 1.26% | $17.0 million | 0.00% | +207,003 | 13F |
| Millennium Management LLC | 1,208,017 | 1.24% | $16.7 million | 0.01% | +172,779 | 13F |
| Deutsche Bank AG | 1,196,197 | 1.23% | $16.6 million | 0.01% | +321,166 | 13F |
| Barclays PLC | 1,180,878 | 1.21% | $16.4 million | 0.01% | +125,951 | 13F |
| Charles Schwab Investment Management Inc. | 1,176,959 | 1.21% | $16.3 million | 0.00% | +137,565 | 13F |
| Point72 Asset Management, L.P. | 1,139,811 | 1.17% | $15.8 million | 0.03% | +1,111,890 | 13F |
| Qube Research & Technologies Ltd | 1,136,175 | 1.17% | $15.7 million | 0.02% | -91,395 | 13F |
| Susquehanna International Group, LLP | 1,100,269 | 1.13% | $15.2 million | 0.01% | +1,011,099 | 13F |
| Trexquant Investment LP | 1,097,532 | 1.13% | $15.2 million | 0.09% | +381,275 | 13F |
| First Trust Advisors LP | 1,037,344 | 1.06% | $14.4 million | 0.01% | +642,775 | 13F |
| Nearwater Capital Markets, Ltd | 1,034,700 | 1.06% | $14.3 million | 0.25% | new | 13F |
| Vanguard Fiduciary Trust Co. | 989,691 | 1.02% | $13.7 million | 0.00% | +117,109 | 13F |
| Shannon River Fund Management LLC | 838,887 | 0.86% | $11.6 million | 1.04% | new | 13F |
| Tudor Investment Corp. Et Al | 747,428 | 0.77% | $10.4 million | 0.04% | +327,767 | 13F |
| IMC-Chicago, LLC | 734,114 | 0.75% | $10.2 million | 0.09% | +671,435 | 13F |
| Stifel Financial Corp. | 731,470 | 0.75% | $10.1 million | 0.01% | -1,702 | 13F |
| Stephens Investment Management Group LLC | 714,324 | 0.73% | $9.9 million | 0.11% | -178,784 | 13F |
| D. E. Shaw & Co., Inc. | 671,812 | 0.69% | $9.3 million | 0.01% | -403,574 | 13F |
| TimesSquare Capital Management, LLC | 641,990 | 0.66% | $8.9 million | 0.13% | new | 13F |
| Oberweis Asset Management Inc. | 636,200 | 0.65% | $8.8 million | 0.18% | +51,200 | 13F |
| Invesco Ltd. | 571,613 | 0.59% | $7.9 million | 0.00% | +72,809 | 13F |
| Wolf Hill Capital Management, LP | 527,259 | 0.54% | $7.3 million | 0.71% | -275,666 | 13F |
| Mirae Asset Global ETFS Holdings Ltd. | 523,062 | 0.54% | $7.2 million | 0.01% | +33,410 | 13F |
| Massachusetts Financial Services Co. | 506,268 | 0.52% | $7.0 million | 0.00% | -1,518,492 | 13F |
| Oppenheimer & Co. Inc. | 504,746 | 0.52% | $7.0 million | 0.07% | +92,237 | 13F |
| DNB Asset Management AS | 491,965 | 0.50% | $6.8 million | 0.02% | +338,933 | 13F |
| Polen Capital Management LLC | 465,598 | 0.48% | $6.5 million | 0.06% | +43,453 | 13F |
| Sei Investments Co. | 443,230 | 0.45% | $6.1 million | 0.01% | -135,931 | 13F |
| Coppell Advisory Solutions LLC | 500 | 0.00% | $6.1 million | 0.51% | 13F | |
| Federated Hermes, Inc. | 428,693 | 0.44% | $5.9 million | 0.01% | +258,940 | 13F |
| Algert Global LLC | 424,833 | 0.44% | $5.9 million | 0.07% | +209,518 | 13F |
The 50 largest of the 262 funds that reported a position in AMPX in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on AMPX
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Point72 Asset Management | Calls | 2,160,200 | $29.9 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 2,094,700 | $29.0 million | 30 June 2026 | 13F |
| Citadel Advisors | Calls | 1,498,600 | $20.8 million | 30 June 2026 | 13F |
| Point72 Asset Management | Puts | 1,079,700 | $15.0 million | 30 June 2026 | 13F |
| Millennium Management | Puts | 240,000 | $3.3 million | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 10 August 2026 | 13G/A | Jane Street Group, LLC and 5 others | 4.7 million | 3.3% | 30 June 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 27 July 2026 | 13G/A | BlackRock, Inc. and 1 other | 10.7 million | 7.4% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 28 April 2026 | 13G | Jane Street Group, LLC and 5 others | 7.0 million | 5.1% | 22 April 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 30 October 2025 | 13G | The Vanguard Group and 1 other | 6.5 million | 5.2% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 28 September 2026 | 12,819 | $9.75 | SEC |
| 24 September 2026 | 1,058 | $9.73 | SEC |
| 23 September 2026 | 19 | $9.98 | SEC |
| 18 September 2026 | 36 | $9.54 | SEC |
| 11 September 2026 | 2,421 | $9.55 | SEC |
| 2 September 2026 | 2,846 | $9.48 | SEC |
| 1 September 2026 | 661 | $9.88 | SEC |
| 28 August 2026 | 3,832 | $10.51 | SEC |
| 26 August 2026 | 4,703 | $10.18 | SEC |
| 24 August 2026 | 1,960 | $10.34 | SEC |
| 20 August 2026 | 3,027 | $10.63 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.