VANGUARD PORTFOLIO MANAGEMENT LLC
Position in AMPX — Amprius Technologies, Inc.
CIK 2100121
MALVERN, PA
Position in AMPX
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$20,202,737
+$2,105,281 QoQ
Shares Held
1,457,629
+35.8% QoQ
Ownership
0.998%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#14
of 259 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority
Sole 0%
Shared 0%
None 100%
Common Shares in AMPX Over Time
Shares Held
Position Value (USD)
Position in Electrical Equipment & Parts
Industrials · as of Jun 30, 2026VANGUARD PORTFOLIO MANAGEMENT LLC holds $15,768,406,770 across 24 Electrical Equipment & Parts names. AMPX ranks #17 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRT |
Vertiv Holdings Co
|
17,909,570 | $5,996,482,227 | |
| 2 | BE |
Bloom Energy Corp
|
12,549,603 | $3,798,764,828 | |
| 3 | HUBB |
Hubbell Inc
|
2,677,321 | $1,400,774,347 | |
| 4 | NVT |
nVent Electric plc
|
6,899,810 | $1,170,276,774 | |
| 5 | AEIS |
Advanced Energy Industries Inc
|
2,143,658 | $799,305,758 | |
| 6 | ENS |
EnerSys
|
2,346,138 | $548,573,987 | |
| 7 | AYI |
Acuity Inc. (De)
|
1,436,715 | $541,153,071 | |
| 8 | POWL |
Powell Industries Inc
|
1,557,700 | $446,062,972 |
All Filings in AMPX
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $20,202,737 | 1,457,629 | Shares | Defined | 2026-08-13 | |
| 2026-03-31 | $18,097,456 | 1,073,396 | Shares | Defined | 2026-05-08 | |
| No filing history on record for this holder in this stock. | ||||||