As of the latest SEC filings, Amprius Technologies, Inc. (AMPX) is held by 178 institutional funds. The largest fund shareholder is VANGUARD TOTAL STOCK MARKET INDEX FUND (VTI), holding an estimated $56,256,930.60 in market value, representing a significant portion of its portfolio.
Funds holding Amprius Technologies, Inc. (AMPX)
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- AMPX
- CIK:
- 0001899287
| Fund | Type | Manager | Weight | Market Value | Shares |
Report Date
|
Filing Date
|
|---|---|---|---|---|---|---|---|
|
VTI
VANGUARD TOTAL STOCK MARKET INDEX FUND
|
ETF | Vanguard | 0.00% | $56,256,930.60 | 3,336,710 | Mar 31, 2026 | May 28, 2026 |
|
IWM
iShares Russell 2000 ETF
|
ETF | BlackRock / iShares | 0.07% | $47,456,061.18 | 2,814,713 | Mar 31, 2026 | May 28, 2026 |
|
VEMPX
VANGUARD EXTENDED MARKET INDEX FUND
|
ETF | Vanguard | 0.03% | $24,591,018.12 | 1,458,542 | Mar 31, 2026 | May 28, 2026 |
|
FSSNX
Fidelity Small Cap Index Fund
|
MF | Fidelity | 0.07% | $23,987,487.42 | 1,139,007 | Apr 30, 2026 | Jun 26, 2026 |
|
PRJIX
T. Rowe Price New Horizons Fund, Inc.
|
MF | T. Rowe Price | 0.15% | $18,748,320.00 | 1,112,000 | Mar 31, 2026 | May 28, 2026 |
|
CTASX
Calamos Timpani Small Cap Growth Fund
|
MF | Calamos | 2.52% | $18,704,818.08 | 888,168 | Apr 30, 2026 | Jun 26, 2026 |
|
MNDBX
MFS New Discovery Fund
|
MF | Independent / Boutique | 0.83% | $17,405,336.87 | 1,622,119 | Feb 28, 2026 | Apr 24, 2026 |
|
IWO
iShares Russell 2000 Growth ETF
|
ETF | BlackRock / iShares | 0.13% | $15,864,956.52 | 940,982 | Mar 31, 2026 | May 28, 2026 |
|
SAMT
Strategas Macro Thematic Opportunities ETF
|
ETF | Independent / Boutique | 2.75% | $14,291,530.74 | 847,659 | Mar 31, 2026 | Jun 1, 2026 |
|
OBMCX
Oberweis Micro-Cap Fund
|
MF | Independent / Boutique | 0.90% | $9,466,890.00 | 561,500 | Mar 31, 2026 | May 29, 2026 |
|
-
MFS New Discovery Series
|
ETF | Independent / Boutique | 1.28% | $9,079,683.24 | 538,534 | Mar 31, 2026 | May 26, 2026 |
|
FSMAX
Fidelity Extended Market Index Fund
|
MF | Fidelity | 0.02% | $7,320,971.70 | 682,290 | Feb 28, 2026 | Apr 24, 2026 |
|
FYC
First Trust Small Cap Growth AlphaDEX Fund
|
ETF | First Trust | 0.70% | $7,281,663.48 | 345,758 | Apr 30, 2026 | Jun 23, 2026 |
|
DMCRX
Driehaus Micro Cap Growth Fund
|
MF | Independent / Boutique | 1.57% | $7,204,952.40 | 427,340 | Mar 31, 2026 | May 27, 2026 |
|
SCHA
Schwab U.S. Small-Cap ETF
|
ETF | Charles Schwab | 0.03% | $6,831,136.47 | 636,639 | Feb 28, 2026 | Apr 24, 2026 |
|
WBSNX
William Blair Small Cap Growth Fund
|
MF | Independent / Boutique | 0.69% | $6,818,015.40 | 404,390 | Mar 31, 2026 | May 28, 2026 |
|
PBW
Invesco WilderHill Clean Energy ETF
|
ETF | Invesco | 1.39% | $6,258,989.88 | 297,198 | Apr 30, 2026 | Jun 26, 2026 |
|
VTWO
VANGUARD RUSSELL 2000 INDEX FUND
|
ETF | Vanguard | 0.04% | $5,868,462.33 | 546,921 | Feb 28, 2026 | Apr 28, 2026 |
|
SWSSX
Schwab Small-Cap Index Fund
|
MF | Charles Schwab | 0.07% | $5,324,199.66 | 252,811 | Apr 30, 2026 | Jun 25, 2026 |
|
HRNOX
Hood River New Opportunities Fund
|
MF | Independent / Boutique | 0.77% | $5,096,154.18 | 302,263 | Mar 31, 2026 | May 29, 2026 |
|
CGRIX
Calamos Growth Fund
|
MF | Calamos | 0.30% | $5,083,252.20 | 241,370 | Apr 30, 2026 | Jun 26, 2026 |
|
IWC
iShares Micro-Cap ETF
|
ETF | BlackRock / iShares | 0.40% | $4,895,031.24 | 290,334 | Mar 31, 2026 | May 28, 2026 |
|
QCLN
First Trust NASDAQ Clean Edge Green Energy Index Fund
|
ETF | First Trust | 0.85% | $4,648,285.14 | 275,699 | Mar 31, 2026 | May 28, 2026 |
|
FYX
First Trust Small Cap Core AlphaDEX Fund
|
ETF | First Trust | 0.36% | $4,335,959.16 | 205,886 | Apr 30, 2026 | Jun 23, 2026 |
|
DRIV
Global X Autonomous & Electric Vehicles ETF
|
ETF | Independent / Boutique | 1.16% | $4,158,626.10 | 387,570 | Feb 28, 2026 | Apr 29, 2026 |
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