John S. Montalbano, a director at $ABCL, bought 25,000 shares of the company on 03-10-2025 for an estimated $57,499. 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 17.1%. Following this trade, they now own 171,000 shares of this class of $ABCL stock.
$ABCL Insider Trading Activity
$ABCL insiders have traded $ABCL 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 $ABCL stock by insiders over the last 6 months:
- JOHN S. MONTALBANO has made 2 purchases buying 85,000 shares for an estimated $198,068 and 0 sales.
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
$ABCL Hedge Fund Activity
We have seen 64 institutional investors add shares of $ABCL stock to their portfolio, and 80 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- CAPITAL WORLD INVESTORS added 7,933,613 shares (+inf%) to their portfolio in Q4 2024, for an estimated $23,245,486
- FOUNDERS FUND VII MANAGEMENT, LLC removed 3,773,530 shares (-100.0%) from their portfolio in Q3 2024, for an estimated $9,811,178
- UBS GROUP AG added 1,953,603 shares (+8984.1%) to their portfolio in Q4 2024, for an estimated $5,724,056
- PROSIGHT MANAGEMENT, LP removed 1,729,539 shares (-19.0%) from their portfolio in Q4 2024, for an estimated $5,067,549
- FEDERATED HERMES, INC. removed 1,366,459 shares (-59.9%) from their portfolio in Q4 2024, for an estimated $4,003,724
- CITADEL ADVISORS LLC removed 902,389 shares (-60.2%) from their portfolio in Q4 2024, for an estimated $2,643,999
- MILLENNIUM MANAGEMENT LLC added 728,828 shares (+96.7%) to their portfolio in Q4 2024, for an estimated $2,135,466
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
