$ATMU stock is down 12% today. Here's what we see in our data.

$ATMU stock has now fallen 12% today, according to our price data from Polygon. There has been approximately $67,000,503 of trading volume.

It has been the 530th most-searched ticker on Quiver Quantitative over the last day, out of 12,339 total tickers searched.

Here is what we see in our data on $ATMU (you can track the company live on Quiver's $ATMU stock page):

$ATMU Insider Trading Activity

$ATMU insiders have traded $ATMU stock on the open market 1 times in the past 6 months. Of those trades, 0 have been purchases and 1 have been sales.

Here’s a breakdown of recent trading of $ATMU stock by insiders over the last 6 months:

DIEGO DONOSO sold 20 shares for an estimated $976

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API.

$ATMU Hedge Fund Activity

We have seen 152 institutional investors add shares of $ATMU stock to their portfolio, and 144 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

EMINENCE CAPITAL, LP removed 2,697,058 shares (-41.4%) from their portfolio in Q4 2025, for an estimated $140,004,280
T. ROWE PRICE INVESTMENT MANAGEMENT, INC. removed 1,270,433 shares (-95.9%) from their portfolio in Q4 2025, for an estimated $65,948,177
FMR LLC added 917,194 shares (+26.2%) to their portfolio in Q4 2025, for an estimated $47,611,540
SILVERCREST ASSET MANAGEMENT GROUP LLC added 750,650 shares (+inf%) to their portfolio in Q4 2025, for an estimated $38,966,241
WELLINGTON MANAGEMENT GROUP LLP removed 616,375 shares (-27.8%) from their portfolio in Q4 2025, for an estimated $31,996,026
FIRST TRUST ADVISORS LP added 603,954 shares (+39.5%) to their portfolio in Q4 2025, for an estimated $31,351,252
PRICE T ROWE ASSOCIATES INC /MD/ added 596,553 shares (+14.6%) to their portfolio in Q4 2025, for an estimated $30,967,066

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API.

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$ATMU Analyst Ratings

Wall Street analysts have issued reports on $ATMU in the last several months. We have seen 1 firms issue buy ratings on the stock, and 0 firms issue sell ratings.

Here are some recent analyst ratings:

JP Morgan issued a "Overweight" rating on 11/26/2025

To track analyst ratings and price targets for $ATMU, check out Quiver Quantitative's $ATMU forecast page.

$ATMU Price Targets

Multiple analysts have issued price targets for $ATMU recently. We have seen 3 analysts offer price targets for $ATMU in the last 6 months, with a median target of $66.0.

Here are some recent targets:

Joseph O'Dea from Wells Fargo set a target price of $58.0 on 04/01/2026
Tami Zakaria from JP Morgan set a target price of $70.0 on 04/01/2026
Robert Mason from Baird set a target price of $66.0 on 03/30/2026

You can track data on $ATMU on Quiver Quantitative.

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.