Amprius Technologies, Inc. - Common stock, $0.0001 par value (AMPX)
CUSIP: 03214Q108
Q3 2025 13F Holders as of 30 Sep 2025
- Type / Class
- Equity / Common stock, $0.0001 par value
- Shares outstanding
- 137,544,784
- Total 13F shares
- 63,619,076
- Share change
- +23,786,216
- Total reported value
- $669,377,974
- Put/Call ratio
- 20%
- Price per share
- $10.52
- Number of holders
- 186
- Value change
- +$261,382,421
- Number of buys
- 148
- Number of sells
- 43
Quarterly Holders Quick Answers
What is CUSIP 03214Q108?
CUSIP 03214Q108 identifies AMPX - Amprius Technologies, Inc. - Common stock, $0.0001 par value in SEC institutional holdings data.
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Recent filing periods for CUSIP 03214Q108:
Top shareholders of AMPX - Amprius Technologies, Inc. - Common stock, $0.0001 par value (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
|
Company |
5.8%
|
7,297,002
|
$76,764,461 | $0 | 30 Sep 2025 | |
| Alan E. Salzman |
13D/G
|
SALZMAN ALAN E |
2.6%
|
3,112,992
|
$20,047,668 | $0 | 06 Aug 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
3.5%
|
4,755,225
|
$20,019,497 | — | 30 Jun 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
2.6%
|
3,616,380
|
$15,224,960 | — | 30 Jun 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.4%
|
1,933,627
|
$8,140,570 | — | 30 Jun 2025 | |
| Sandra Wallach |
3/4/5
|
Chief Financial Officer |
0.73%
|
1,005,275
|
$6,852,155 | -$260,623 | 21 Aug 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.2%
|
1,593,607
|
$6,709,864 | — | 30 Jun 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
1%
|
1,411,608
|
$5,942,870 | — | 30 Jun 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.98%
|
1,346,600
|
$5,669,186 | — | 30 Jun 2025 | |
| STATE STREET CORP |
13F
|
Company |
0.86%
|
1,176,718
|
$4,953,983 | — | 30 Jun 2025 | |
| Board of Trustees of The Leland Stanford Junior University |
13F
|
Company |
0.83%
|
1,146,636
|
$4,827,338 | — | 30 Jun 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.81%
|
1,115,538
|
$4,696,414 | — | 30 Jun 2025 | |
| MARSHALL WACE, LLP |
13F
|
Company |
0.8%
|
1,105,413
|
$4,653,790 | — | 30 Jun 2025 | |
| ESSEX INVESTMENT MANAGEMENT CO LLC |
13F
|
Company |
0.75%
|
1,025,357
|
$4,316,753 | — | 30 Jun 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.74%
|
1,017,217
|
$4,282,484 | — | 30 Jun 2025 | |
| Baird Financial Group, Inc. |
13F
|
Company |
0.73%
|
1,000,711
|
$4,212,993 | — | 30 Jun 2025 | |
| STIFEL FINANCIAL CORP |
13F
|
Company |
0.65%
|
896,225
|
$3,773,110 | — | 30 Jun 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.64%
|
877,328
|
$3,693,551 | — | 30 Jun 2025 | |
| UBS Group AG |
13F
|
Company |
0.53%
|
731,533
|
$3,079,753 | — | 30 Jun 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.48%
|
662,573
|
$2,789,432 | — | 30 Jun 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.39%
|
540,268
|
$2,274,528 | — | 30 Jun 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.36%
|
496,899
|
$2,091,945 | — | 30 Jun 2025 | |
| Amprius, Inc. |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
2,500,071
|
$2,012,807 | — | 23 Oct 2024 | |
| Donald R. Dixon |
3/4/5
|
Director |
0.56%
|
771,931
|
$1,945,266 | — | 13 Jun 2025 | |
| OPPENHEIMER & CO INC |
13F
|
Company |
0.33%
|
449,197
|
$1,891,119 | — | 30 Jun 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
0.29%
|
402,400
|
$1,694,104 | — | 30 Jun 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.23%
|
323,007
|
$1,361,000 | — | 30 Jun 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.2%
|
279,657
|
$1,177,356 | — | 30 Jun 2025 | |
| Legato Capital Management LLC |
13F
|
Company |
0.2%
|
276,874
|
$1,165,640 | — | 30 Jun 2025 | |
| Polar Asset Management Partners Inc. |
13F
|
Company |
0.2%
|
274,788
|
$1,156,857 | — | 30 Jun 2025 | |
| Justin E. Mirro |
3/4/5
|
Director |
—
mixed-class rows
|
1,537,895
mixed-class rows
|
$1,077,140 | — | 03 Sep 2024 | |
| Nuveen, LLC |
13F
|
Company |
0.16%
|
217,178
|
$914,319 | — | 30 Jun 2025 | |
| HRT FINANCIAL LP |
13F
|
Company |
0.16%
|
215,633
|
$907,000 | — | 30 Jun 2025 | |
| Informed Momentum Co LLC |
13F
|
Company |
0.15%
|
211,252
|
$889,371 | — | 30 Jun 2025 | |
| Livingston Satterthwaite |
3/4/5
|
Director |
0.24%
|
336,083
|
$846,929 | — | 13 Jun 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.14%
|
193,748
|
$815,680 | — | 30 Jun 2025 | |
| Verition Fund Management LLC |
13F
|
Company |
0.13%
|
177,652
|
$747,915 | — | 30 Jun 2025 | |
| Cubist Systematic Strategies, LLC |
13F
|
Company |
0.12%
|
170,405
|
$717,405 | — | 30 Jun 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.12%
|
167,503
|
$705,188 | — | 30 Jun 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.12%
|
164,060
|
$690,693 | — | 30 Jun 2025 | |
| HITE Hedge Asset Management LLC |
13F
|
Company |
0.12%
|
161,444
|
$679,679 | — | 30 Jun 2025 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.12%
|
159,614
|
$671,975 | — | 30 Jun 2025 | |
| Huntleigh Advisors, Inc. |
13F
|
Company |
0.11%
|
145,914
|
$614,299 | — | 30 Jun 2025 | |
| Graham Capital Management, L.P. |
13F
|
Company |
0.1%
|
141,545
|
$595,904 | — | 30 Jun 2025 | |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.1%
|
135,000
|
$568,350 | — | 30 Jun 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.09%
|
126,779
|
$533,739 | — | 30 Jun 2025 | |
| LPL Financial LLC |
13F
|
Company |
0.09%
|
125,706
|
$529,222 | — | 30 Jun 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.09%
|
123,260
|
$518,916 | — | 30 Jun 2025 | |
| Kathleen A. Bayless |
3/4/5
|
Director |
0.15%
|
205,697
|
$518,356 | — | 13 Jun 2025 | |
| Jonathan Bornstein |
3/4/5
|
President of Amprius Lab |
—
class O/S missing
|
422,668
|
$414,215 | — | 10 Mar 2025 |
Institutional Holders of Amprius Technologies, Inc. - Common stock, $0.0001 par value (AMPX) as of Q3 2025
As of 30 Sep 2025,
Amprius Technologies, Inc. - Common stock, $0.0001 par value (AMPX) was held by
186 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
63,619,076 shares.
The largest 10 holders included
BlackRock, Inc., VANGUARD GROUP INC, Driehaus Capital Management LLC, MORGAN STANLEY, CITADEL ADVISORS LLC, GEODE CAPITAL MANAGEMENT, LLC, Invesco Ltd., STATE STREET CORP, DEUTSCHE BANK AG\, and BNP PARIBAS FINANCIAL MARKETS.
This page lists
186
institutional shareholders reporting positions in this security
for the Q3 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
118
Q3 2025 holders
186
Holder diff
68
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 Value $ | Q3 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.