ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
Position in AMPX — Amprius Technologies, Inc.
CIK 1164508
BOSTON, MA
Position in AMPX
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$3,829,445
-$1,133,796 QoQ
Shares Held
227,132
-51.9% QoQ
Ownership
0.155%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2025
2 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in AMPX Over Time
Shares Held
Position Value (USD)
Position in Electrical Equipment & Parts
Industrials · as of Jun 30, 2026ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $794,642,515 across 14 Electrical Equipment & Parts names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BE |
Bloom Energy Corp
|
701,790 | $212,431,833 | |
| 2 | NVT |
nVent Electric plc
|
594,529 | $100,838,063 | |
| 3 | AYI |
Acuity Inc. (De)
|
259,219 | $97,637,428 | |
| 4 | VRT |
Vertiv Holdings Co
|
280,728 | $93,993,348 | |
| 5 | AEIS |
Advanced Energy Industries Inc
|
240,845 | $89,803,875 | |
| 6 | ENS |
EnerSys
|
287,470 | $67,216,235 | |
| 7 | HUBB |
Hubbell Inc
|
108,938 | $56,996,361 | |
| 8 | ATKR |
Atkore Inc.
|
482,239 | $36,669,453 |
All Filings in AMPX
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,829,445 | 227,132 | Shares | Defined | 2026-05-14 | |
| 2025-09-30 | $4,963,241 | 471,791 | Shares | Defined | 2025-11-13 | |
| No filing history on record for this holder in this stock. | ||||||