Vanguard Personalized Indexing Management, LLC
Position in AMPX — Amprius Technologies, Inc.
CIK 1767306
OAKLAND, CA
Position in AMPX
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$390,022
+$248,350 QoQ
Shares Held
23,133
+28.8% QoQ
Ownership
0.016%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2024
7 quarters on record
Voting authority
Sole 75%
Shared 0%
None 25%
Common Shares in AMPX Over Time
Shares Held
Position Value (USD)
Position in Electrical Equipment & Parts
Industrials · as of Mar 31, 2026Vanguard Personalized Indexing Management, LLC holds $31,377,932 across 15 Electrical Equipment & Parts names. AMPX ranks #8 (1.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRT |
Vertiv Holdings Co
|
43,732 | $10,958,364 | |
| 2 | HUBB |
Hubbell Inc
|
10,766 | $5,283,306 | |
| 3 | NVT |
nVent Electric plc
|
36,824 | $4,355,542 | |
| 4 | AEIS |
Advanced Energy Industries Inc
|
10,871 | $3,508,180 | |
| 5 | BE |
Bloom Energy Corp
|
22,589 | $3,060,583 | |
| 6 | AYI |
Acuity Inc. (De)
|
5,304 | $1,486,286 | |
| 7 | ENS |
EnerSys
|
7,620 | $1,323,746 | |
| 8 | AMPX |
Amprius Technologies, Inc.
This page
|
23,133 | $390,022 |
All Filings in AMPX
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $390,022 | 23,133 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $141,672 | 17,956 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $206,591 | 19,638 | Shares | Sole | 2025-10-31 | |
| 2025-06-30 | $80,554 | 19,134 | Shares | Sole | 2025-07-25 | |
| 2025-03-31 | $43,579 | 16,261 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $37,629 | 13,439 | Shares | Sole | 2025-02-10 | |
| 2024-06-30 | $16,140 | 12,709 | Shares | Sole | 2024-08-12 | |
| No filing history on record for this holder in this stock. | ||||||