Holdings Ltd. Thermopylae, a 10% owner of $ABCL, bought 38,000 shares of the company on 02-27-2026 for an estimated $130,720. 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 0.1%. Following this trade, they now own 56,134,097 shares of this class of $ABCL stock.
$ABCL Insider Trading Activity
$ABCL insiders have traded $ABCL stock on the open market 4 times in the past 6 months. Of those trades, 4 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:
- HOLDINGS LTD. THERMOPYLAE has made 2 purchases buying 215,457 shares for an estimated $711,004 and 0 sales.
- JOHN S. MONTALBANO purchased 50,000 shares for an estimated $178,460
- ANDREW BOOTH (Chief Financial Officer) purchased 42,600 shares for an estimated $145,692
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
$ABCL Hedge Fund Activity
We have seen 75 institutional investors add shares of $ABCL stock to their portfolio, and 82 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- BAILLIE GIFFORD & CO removed 10,422,966 shares (-100.0%) from their portfolio in Q4 2025, for an estimated $35,646,543
- UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC added 7,876,629 shares (+inf%) to their portfolio in Q4 2025, for an estimated $26,938,071
- GOLDMAN SACHS GROUP INC added 4,094,268 shares (+1636.3%) to their portfolio in Q4 2025, for an estimated $14,002,396
- ORBIMED ADVISORS LLC removed 3,344,568 shares (-100.0%) from their portfolio in Q3 2025, for an estimated $16,823,177
- TANG CAPITAL MANAGEMENT LLC removed 2,600,000 shares (-100.0%) from their portfolio in Q4 2025, for an estimated $8,892,000
- DRIEHAUS CAPITAL MANAGEMENT LLC added 2,045,058 shares (+118.4%) to their portfolio in Q4 2025, for an estimated $6,994,098
- TUDOR INVESTMENT CORP ET AL added 1,065,888 shares (+146.0%) to their portfolio in Q4 2025, for an estimated $3,645,336
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.
