$ALTO stock has now fallen 9% today, according to our price data from Polygon. There has been approximately $5,854,974 of trading volume.
Here is what we see in our data on $ALTO (you can track the company live on Quiver's $ALTO stock page):
$ALTO Insider Trading Activity
$ALTO insiders have traded $ALTO stock on the open market 2 times in the past 6 months. Of those trades, 2 have been purchases and 0 have been sales.
Here’s a breakdown of recent trading of $ALTO stock by insiders over the last 6 months:
- GILBERT E NATHAN has made 2 purchases buying 25,000 shares for an estimated $114,450 and 0 sales.
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 insider transaction endpoint.
$ALTO Hedge Fund Activity
We have seen 68 institutional investors add shares of $ALTO stock to their portfolio, and 33 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- MARSHALL WACE, LLP added 2,183,218 shares (+189.2%) to their portfolio in Q1 2026, for an estimated $10,566,775
- MILLENNIUM MANAGEMENT LLC added 1,546,477 shares (+418.5%) to their portfolio in Q1 2026, for an estimated $7,484,948
- TWO SIGMA INVESTMENTS, LP added 1,167,286 shares (+139.0%) to their portfolio in Q1 2026, for an estimated $5,649,664
- HILLSDALE INVESTMENT MANAGEMENT INC. added 855,703 shares (+590.1%) to their portfolio in Q1 2026, for an estimated $4,141,602
- PEAPOD LANE CAPITAL LLC removed 837,813 shares (-67.3%) from their portfolio in Q1 2026, for an estimated $4,055,014
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added 723,996 shares (+67.9%) to their portfolio in Q1 2026, for an estimated $3,504,140
- D. E. SHAW & CO., INC. removed 649,674 shares (-100.0%) from their portfolio in Q4 2025, for an estimated $1,871,061
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 13F endpoint.
You can track data on $ALTO 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.
