Latest Period
Q2 2026
Security Snapshot
Amprius Technologies, Inc. - Common stock, $0.0001 par value (AMPX) Institutional Ownership
CUSIP: 03214Q108
13F Institutional Holders and Ownership History from Q3 2022 to Q2 2026
Institutions Reporting
260
Shares (Excl. Options)
97,080,887
Price
$13.86
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- Security type / class
- Equity / Common stock, $0.0001 par value
- Symbol
- AMPX on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 97,080,887
- Total 13F value
- $1,345,898,453
- Portfolio coverage rank
- 0%
- Share change
- +12,680,216
- Value change
- +$154,883,718
- Number of holders
- 260
- Shares outstanding
- 142,842,515
- SEC-reported price per share
- $9.24
- Insider filing price
- $9.24
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- AMPX - Amprius Technologies, Inc. - Common stock, $0.0001 par value is tracked under CUSIP 03214Q108.
- 260 institutions reported positions in Q2 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 242 to 260 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $1,422,156,201 to $1,345,898,453.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 260 institutions filings for Q2 2026.
Security key
03214Q108
Latest holder period
Q2 2026
13F holders
260
13D/G owners
3
CIK / CUSIP context first
Open Q2 2026 holders
AMPX full holder history
Amprius Technologies, Inc. SEC filings
Amprius Technologies, Inc. company facts
Amprius Technologies, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 03214Q108:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
AMPX
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 7.4% | +27% | $148,313,324 | +$47,176,876 | 10,700,817 | +47% | BlackRock, Inc. | 30 Jun 2026 |
| JANE STREET GROUP, LLC | 3.3% | -36% | $65,333,310 | -$31,891,597 | 4,713,803 | -33% | JANE STREET GROUP, LLC | 30 Jun 2026 |
| SALZMAN ALAN E | 2.6% | $20,047,668 | 3,112,992 | SALZMAN ALAN E | 06 Aug 2025 |
As of 30 Jun 2026, 260 institutional investors reported holding 97,080,887 shares of Amprius Technologies, Inc. - Common stock, $0.0001 par value (AMPX). This represents 68% of the company’s total 142,842,515 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
46%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7.9% | 11,335,092 | +23% | 0% | $157,104,377 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.9% | 5,562,985 | +13% | 0% | $77,102,972 |
| MORGAN STANLEY | 3.6% | 5,105,505 | +61% | 0% | $70,762,300 |
| TWO SIGMA INVESTMENTS, LP | 3% | 4,318,630 | +23% | 0.05% | $59,856,212 |
| UBS Group AG | 2.9% | 4,072,269 | +76% | 0.01% | $56,441,649 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.5% | 3,520,655 | +25% | 0% | $48,805,499 |
| JANE STREET GROUP, LLC | 2.4% | 3,401,071 | -18% | 0.03% | $47,138,844 |
| STATE STREET CORP | 2.3% | 3,240,285 | +19% | 0% | $44,910,350 |
| GOLDMAN SACHS GROUP INC | 1.8% | 2,542,294 | +14% | 0% | $35,236,188 |
| JUPITER ASSET MANAGEMENT LTD | 1.5% | 2,133,397 | 0.15% | $29,568,882 | |
| LMR Partners LLP | 1.2% | 1,750,850 | 0.18% | $24,266,781 | |
| CITADEL ADVISORS LLC | 1.2% | 1,676,344 | +17% | 0.01% | $23,234,128 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.1% | 1,635,883 | -14% | 0% | $22,675,000 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1% | 1,457,629 | +36% | 0% | $20,202,738 |
| Hood River Capital Management LLC | 0.99% | 1,412,516 | +49% | 0.14% | $19,577,472 |
| RENAISSANCE TECHNOLOGIES LLC | 0.99% | 1,408,925 | +292% | 0.03% | $19,527,701 |
| Driehaus Capital Management LLC | 0.94% | 1,345,269 | -65% | 0.11% | $18,645,428 |
| Baird Financial Group, Inc. | 0.93% | 1,324,909 | -16% | 0.03% | $18,363,239 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 0.87% | 1,248,700 | 0.02% | $17,306,982 | |
| NORTHERN TRUST CORP | 0.86% | 1,229,628 | +20% | 0% | $17,042,644 |
| MILLENNIUM MANAGEMENT LLC | 0.85% | 1,208,017 | +17% | 0.01% | $16,743,116 |
| DEUTSCHE BANK AG\ | 0.84% | 1,196,197 | +37% | 0% | $16,579,290 |
| BARCLAYS PLC | 0.83% | 1,180,878 | +12% | 0.01% | $16,366,969 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.82% | 1,176,959 | +13% | 0% | $16,312,652 |
| Point72 Asset Management, L.P. | 0.8% | 1,139,811 | +3982% | 0.02% | $15,797,780 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
16
Latest
Q2 2026
Rows shown
1-16 of 16
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 97,080,887 | $1,345,898,453 | +$154,883,718 | $13.86 | 260 |
| 2026 Q1 | 84,509,430 | $1,422,156,201 | +$346,177,234 | $16.86 | 242 |
| 2025 Q4 | 67,707,437 | $534,260,199 | +$34,169,820 | $7.89 | 205 |
| 2025 Q3 | 63,619,076 | $669,377,974 | +$261,382,421 | $10.52 | 186 |
| 2025 Q2 | 38,039,587 | $160,145,831 | +$72,882,798 | $4.21 | 118 |
| 2025 Q1 | 20,792,389 | $55,722,164 | +$11,174,039 | $2.68 | 99 |
| 2024 Q4 | 16,629,172 | $46,565,451 | +$26,312,011 | $2.80 | 89 |
| 2024 Q3 | 8,263,083 | $9,170,989 | +$545,018 | $1.11 | 65 |
| 2024 Q2 | 7,645,780 | $9,709,555 | +$3,389,388 | $1.27 | 64 |
| 2024 Q1 | 4,918,277 | $13,032,986 | +$1,051,870 | $2.65 | 44 |
| 2023 Q4 | 4,444,605 | $23,509,171 | +$1,730,773 | $5.29 | 49 |
| 2023 Q3 | 4,208,635 | $19,949,419 | +$5,319,098 | $4.74 | 46 |
| 2023 Q2 | 2,710,621 | $19,460,082 | +$5,334,118 | $7.18 | 41 |
| 2023 Q1 | 1,947,022 | $16,956,748 | +$807,030 | $8.71 | 25 |
| 2022 Q4 | 1,860,925 | $14,756,175 | +$4,534,753 | $7.93 | 22 |
| 2022 Q3 | 1,273,029 | $11,741,000 | +$11,741,025 | $9.22 | 12 |