GILBERT E NATHAN, a director at $ALTO, bought 50,000 shares of the company on 08-11-2026 for an estimated $207,500. This trade was reported by Quiver Quantitative using data from a recent SEC filing. This increased their holdings of this class of stock by approximately 6.2%. Following this trade, they now own 856,393 shares of this class of $ALTO stock.
$ALTO Insider Trading Activity
$ALTO insiders have traded $ALTO stock on the open market 3 times in the past 6 months. Of those trades, 3 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 3 purchases buying 75,000 shares for an estimated $321,950 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 92 institutional investors add shares of $ALTO stock to their portfolio, and 34 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- BLACKROCK, INC. added 4,196,940 shares (+323.3%) to their portfolio in Q2 2026, for an estimated $23,922,558
- 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
- GEODE CAPITAL MANAGEMENT, LLC added 1,088,965 shares (+122.2%) to their portfolio in Q2 2026, for an estimated $6,207,100
- STATE STREET CORP added 857,326 shares (+229.9%) to their portfolio in Q2 2026, for an estimated $4,886,758
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added 723,996 shares (+67.9%) to their portfolio in Q1 2026, for an estimated $3,504,140
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.
$ALTO Revenue
$ALTO had revenues of $245.7M in Q2 2026. This is an increase of 12.48% from the same period in the prior year.
You can track ALTO financials on Quiver Quantitative's ALTO stock page.
You can access data on ALTO stock through the Quiver Quantitative API.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
