13FPulse
AM

AMPX AMPRIUS TECHNOLOGIES INC

2026Q2 · CUSIP 03214Q108 · Sector: Technology

Cooling

Net holder growth weakened from last quarter

Funds that own it
258
Institutions that reported holding it to the SEC
Net increase in holders
+15
Last quarter 243 → now 258
How unusual is that
Above average
Stronger buying than 78% of US stocks
What the filings say, in one paragraph

258 funds held AMPX at the end of 2026Q2, up 15 from the quarter before. Buying has come off its highs, but funds are not exiting. On the business itself, revenue over the last 12 months was $109M(YoY +143.6%), return on equity is -29.0%. AMPX has had 5 buying rushes in its history, and the price moved +41.0% on average over the six months after (that is the raw price move, not how much it beat the market by). It sits in the Technology sector.

How many funds owned it, quarter by quarter

Bars = net change in institutional holders, positive (green) or negative (red). Line = total institutional holders.

2022Q4: holders=22 2023Q1: holders=26 2023Q2: holders=41 2023Q3: holders=46 2023Q4: holders=50 2024Q1: holders=50 2024Q2: holders=65 2024Q3: holders=66 2024Q4: holders=91 2025Q1: holders=98 2025Q2: holders=121 2025Q3: holders=185 2025Q4: holders=204 2026Q1: holders=243 2026Q2: holders=258 -64 -32 +0 +32 +64 19145271 22Q423Q123Q223Q323Q424Q124Q224Q324Q425Q125Q225Q325Q426Q126Q2 Net change in holders (bars) Total funds holding (line)

What happened after each past buying rush 5 times in its history

Quarter of the rush How unusual then Price, next 3 months Price, next 6 months
2026Q1 Top 10%
2025Q3 Top 5% -0.8% +44.5%
2025Q2 Top 20% +56.6% +37.4%
2024Q2 Top 20%
2023Q2 Top 20%

These are the raw price moves, not how much it beat the market by. Compare them against the market over the same months — in a strong bull market almost everything is up.

Show all the numbers (large funds, value held, options…) ▾
Of them, large funds
141
Change in large funds
+16
Total value they hold
$1.3B
Funds buying for the first time
64
Funds that sold out entirely
49
Price change that quarter
-40.3%
Funds holding puts (bearish)
17
Funds holding calls (bullish)
16

These are for people who want to dig. Skip them if they do not mean anything to you — the three numbers above are enough.

8,697 institutions have filed for this quarter. 13F permits late filing and a small number arrive in the weeks after the deadline, so the holder counts and changes below may tick up.

Fundamentals

PE (TTM)
EPS (TTM)
$-0.30
EPS YoY
Revenue (TTM)
$0.1B
Revenue YoY
+143.6%
Net margin
-33.4%
ROE
-29.0%
Debt ratio
15.8%
FCF (TTM)
-$58M
Dividend (TTM)
No dividend
Quarterly Revenue & EPS
2021-09-30: EPS -0.05 2022-03-31: EPS -0.04 2022-06-30: EPS -0.06 2022-09-30: EPS -0.06 2022-12-31: EPS -0.08 2023-03-31: EPS -0.11 2023-06-30: EPS -0.11 2023-09-30: EPS -0.10 2023-12-31: EPS -0.11 2024-03-31: EPS -0.11 2024-06-30: EPS -0.13 2024-09-30: EPS -0.10 2024-12-31: EPS -0.11 2025-03-31: EPS -0.08 2025-06-30: EPS -0.05 2025-09-30: EPS -0.03 2025-12-31: EPS -0.19 2026-03-31: EPS -0.04 2026-06-30: EPS -0.04 0M 17M 34M $M -0.21 -0.10 0.00 20212022202320242025202606/26 Revenue EPS

Quarterly figures, revenue up to 10 years back; EPS split-adjusted, early quarters hidden when not calibrable

Quarterly free cash flow
-38M-19M0K 20222023202420252026
Latest quarter $-38M (2026-03-31)

FCF = operating cash flow − capex, computed from SEC XBRL; banks/insurers have no standard cash-flow structure and are hidden

As of 2026-06-30 · SEC filings (XBRL)

Email me the next update

2026 Q3 holdings are due 2026-11-16. We will email you when the refreshed lists are live.