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Equity · Industrials

AMPX

Amprius Technologies, Inc. · NYSE

$9.17 −0.11% 1D Finazon · prior-day close · Sep 15, 2026

Reddit mentioned AMPX 24 times in the 30 days to 16 September 2026, across 3 of the communities we track. All of them were scored for sentiment: 75% read bullish, 0% bearish and 25% neither. Reddit data updated 16 September 2026.

Price · Chart
Our own end-of-day closes 61 sessions
$17.5 $7.5 18 Jun 15 Sep

The line runs $16.20 on 18 June through $9.17 on 15 September, on a scale from $7.5 to $17.5. Days the market did not trade hold the previous close, flat.

Track this symbol on TradingView

The chart above plots the price of AMPX over the range selected — one day to the full history — drawn by TradingView from their own data. Our own licensed end-of-day series holds 61 sessions over that window: $16.20 on 18 June 2026 through $9.17 on 15 September 2026.

Market cap $1.3B
52-week range $7 – $22.91
Avg volume 525.3K
Mentions · 30d 24
Net sentiment +0.15

Finazon · prior-day close · valuation computed from SEC EDGAR filings · as of Sep 16, 2026

AMPX · crowd attention × price

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24 mentions

Day13 Sep 2026

MENTIONS10–6 / day
PRICE$9.52 · closedMARKET CLOSED · heldSource: Finazon
MOOD100%EXTREMELY BULLISH
AMPX over the last 30 days, plotting daily Reddit mentions as bars, left-hand scale; the daily closing price as a line on its own right-hand scale, solid across consecutive trading days, held flat and diagonally hatched over days the market was closed, diagonally hatched over days we hold no close for; the crowd's sentiment as a scattered ribbon against a dashed neutral rule — each point is the mix over the 7 days ending that day, above the rule more mentions bullish than bearish and below it the reverse — denser on days with more mentions.per day0246% bull10%30%50%70%90%usd$9$10$11$1218 Aug25 Aug2 Sep9 Sep16 Sep
AMPX over the last 30 days, plotting daily Reddit mentions as bars, left-hand scale; the daily closing price as a line on its own right-hand scale, solid across consecutive trading days, held flat and diagonally hatched over days the market was closed, diagonally hatched over days we hold no close for; the crowd's sentiment as a scattered ribbon against a dashed neutral rule — each point is the mix over the 7 days ending that day, above the rule more mentions bullish than bearish and below it the reverse — denser on days with more mentions.50% BULL18 Aug2 Sep16 Sep
The Distributed Sentinel 16 Sep 2026

Reddit's mood on AMPX barely moved across this window — sentiment held between 100% bullish and 100% bullish on the 10 days we could measure

This chart in words

The chart plots daily Reddit mentions of AMPX over the 30 days to 16 September 2026: 24 in total, busiest on 20 August with 4, and 1 on the last day counted. The line is the daily close over the same window: $11 on 18 August, $9.17 on 15 September. Of those days, 20 were trading sessions and the other 10 are hatched on the chart. On 9 of them no session took place, and the last close before it is carried forward rather than plotted; on 1 of them we hold no close at all, which is a gap in our own record rather than a closure we can prove. Sentiment — the bullish share of the mentions that took a side, where the chart's dashed rule marks the 50% at which bullish and bearish are even — ran from 100% bullish to 100% bullish over the 10 days that carried enough mentions to measure. 17 days either fell under the 5-mention floor or carried no bullish or bearish mention at all, and so carry no sentiment point.

Finazon · prior-day close, some closes dollar-rounded at the source

Crowd sentiment on AMPX · 30d

n = 24 scored · Method
AMPX

75% bullish

Overall market sentiment

56% bullish

AMPX reads 19 points more bullish than overall market sentiment. Same measure; same 30-day window.

Where AMPX is discussed

(30d)
r/stocks 46% 11 +0.13
r/wallstreetbets 42% 10 +0.16
r/investing 13% 3 +0.15

Moves with AMPX

co-mention r · 31 obs

Tickers whose daily Reddit volume rose and fell with AMPX's. Co-discussion, not price.

MSTZ +0.74 UST +0.69 XLE +0.63 SPOT +0.62 RMD +0.62 TREASURY +0.61

How closely daily Reddit mention counts rose and fell together over the last 30 days (31 daily observations) · Method

What Reddit is saying about AMPX

The threads carrying the mentions · 30 days
  • $AMPX Opinions? r/stocks · by u/Ok_Leading_2669 · carried 2 mentions of the 30-day mentions · 3 days ago

Live discussion on Reddit, shown as posted. Titles link to the original threads.

AMPX insider trades

SEC Form 4 · last 90 days · newest reported trade 24 Aug 2026
Open-market buys 0
Open-market sells 4
Net sold $1.27M
Non-trade filings 2
Date Insider Type Shares Value
24 Aug 2026 Stepien Thomas M Chief Executive Officer Sell 8,000 $80K
21 Aug 2026 Sun Kang Director Sell 62,101 $642K
21 Aug 2026 Stefan Constantin Ionel Chief Technology Officer Sell 29,681 $307K
21 Aug 2026 Stepien Thomas M Chief Executive Officer Sell 23,529 $243K

Compensation mechanics Share grants, option exercises, tax withholding and transfers. They reach the same Form 4 as a trade, but they are not the insider buying or selling on the open market, so no purchase or sale value applies to them.

Date Insider Type Shares Value
25 Aug 2026 Stepien Thomas M Chief Executive Officer Gift 5,346
25 Aug 2026 Stepien Thomas M Chief Executive Officer Award 346

AMPX reported financials

SEC EDGAR XBRL

AMPX reported revenue of $71.9M for the fiscal year ended 31 Dec 2025. Net income over the same period was −$44.0M.

Figure Reported Period
Revenue $71.9M 31 Dec 2025 fiscal year
Net income −$44.0M 31 Dec 2025 fiscal year
Diluted EPS −$0.35 31 Dec 2025 fiscal year
Total assets $149.2M 30 Jun 2026 at period end
Total equity $125.6M 30 Jun 2026 at period end

Source: SEC EDGAR XBRL company facts · latest period ended 30 Jun 2026

AMPX earnings

SEC EDGAR
Date Period EPS Revenue
30 Jun 2026 Q2 2026 $-0.04 $34M
31 Mar 2026 Q1 2026 $-0.04 $29M
31 Dec 2025 FY 2025 $-0.35 $73M
30 Sep 2025 Q3 2025 $-0.03 $21M
30 Jun 2025 Q2 2025 $-0.05 $15M
31 Mar 2025 Q1 2025 $-0.08 $11M
31 Dec 2024 FY 2024 $-0.45 $24M
30 Sep 2024 Q3 2024 $-0.10 $8M

Next report no date announced in SEC filings yet

Reported figures & scheduled dates · SEC EDGAR filings

AMPX institutional holders

SEC Form 13F

9 of the 45 institutional funds we track reported a AMPX position for the quarter ended 30 Jun 2026 — a combined $159.0M; the latest of those filings landed 02 Sep 2026.

Fund Action Shares Value
Two Sigma Investments Held (±25%) +23.2% shares 4,318,630 $59.9M
Citadel Advisors Held (±25%) +16.5% shares 1,676,344 $23.2M
Renaissance Technologies Added +291.9% shares 1,408,925 $19.5M
Millennium Management Held (±25%) +16.7% shares 1,208,017 $16.7M
Point72 Asset Management Added +3,982.3% shares 1,139,811 $15.8M
Tudor Investment Corp Added +78.1% shares 747,428 $10.4M
D. E. Shaw & Co. Trimmed −37.5% shares 671,812 $9.3M
AQR Capital Management Added +25.7% shares 173,155 $2.4M
Marshall Wace Trimmed −89.3% shares 131,200 $1.8M

Source: SEC EDGAR 13F filings

AMPX fails-to-deliver

SEC CNS data

On 28 Aug 2026, 3,832 shares of AMPX failed to deliver (about $40K).

Settlement date Shares failed Notional % of shares out
28 Aug 2026 3,832 $40K 0.003%
26 Aug 2026 4,703 $48K 0.003%
24 Aug 2026 1,960 $20K 0.001%
20 Aug 2026 3,027 $32K 0.002%
11 Aug 2026 1,927 $23K 0.001%
05 Aug 2026 180 $2K <0.001%

Source: SEC fails-to-deliver (CNS) data

AMPX — frequently asked questions

From live data

How often is AMPX mentioned on Reddit?

AMPX was mentioned 3 times in the last 7 days across the finance subreddits we track, and 24 times over the trailing 30 days.

Is Reddit bullish or bearish on AMPX?

Across 24 classified AMPX mentions in the last 30 days, 75% read bullish, 0% bearish and 25% neutral. Crowd sentiment is a social signal, not investment advice.

When did AMPX last report earnings?

Amprius Technologies (AMPX) last reported earnings on 30 Jun 2026 for Q2 2026, per SEC filings.

Are AMPX insiders buying or selling?

SEC Form 4 filings over the last 90 days show 0 buys and 4 sells by AMPX insiders on the open market. A further 2 filings were grants, awards, gifts or exercises rather than open-market trades.

What exchange is AMPX listed on?

Amprius Technologies trades on NYSE under the ticker AMPX.

Answers are generated from the live figures on this page — Reddit crowd data, SEC filings and open company records — and update as the data does.