Christine Berni Silverstein, a director at $ABEO, sold 18,160 shares of the company on 06-15-2026 for an estimated $103,695. We received data on the trade from a recent SEC filing. This was a sale of approximately 13.2% of their shares of this class of stock. Following this trade, they now own 119,562 shares of this class of $ABEO stock.
$ABEO Insider Trading Activity
$ABEO insiders have traded $ABEO stock on the open market 14 times in the past 6 months. Of those trades, 0 have been purchases and 14 have been sales.
Here’s a breakdown of recent trading of $ABEO stock by insiders over the last 6 months:
- VISHWAS SESHADRI (Chief Executive Officer) has made 0 purchases and 3 sales selling 124,817 shares for an estimated $636,488.
- ERIC CROMBEZ has made 0 purchases and 2 sales selling 42,427 shares for an estimated $227,531.
- CHRISTINE BERNI SILVERSTEIN has made 0 purchases and 2 sales selling 38,230 shares for an estimated $205,863.
- MARK ALVINO has made 0 purchases and 2 sales selling 20,000 shares for an estimated $106,036.
- JOSEPH WALTER VAZZANO (Chief Financial Officer) has made 0 purchases and 2 sales selling 19,451 shares for an estimated $103,243.
- DONALD A. WUCHTERL sold 14,814 shares for an estimated $75,412
- BRENDAN M. O'MALLEY (SVP, Chief Legal Officer) sold 13,578 shares for an estimated $72,382
- MADHAV VASANTHAVADA (Chief Commercial Officer) sold 12,610 shares for an estimated $66,657
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.
$ABEO Hedge Fund Activity
We have seen 56 institutional investors add shares of $ABEO stock to their portfolio, and 58 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- ADAGE CAPITAL PARTNERS GP, L.L.C. removed 3,047,985 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $13,654,972
- WESTERN STANDARD LLC removed 1,249,957 shares (-100.0%) from their portfolio in Q4 2025, for an estimated $6,587,273
- AIGH CAPITAL MANAGEMENT LLC added 1,100,000 shares (+55.0%) to their portfolio in Q1 2026, for an estimated $4,928,000
- TANG CAPITAL MANAGEMENT LLC added 1,000,000 shares (+inf%) to their portfolio in Q4 2025, for an estimated $5,270,000
- GOLDMAN SACHS GROUP INC added 628,435 shares (+125.1%) to their portfolio in Q1 2026, for an estimated $2,815,388
- ABERDEEN GROUP PLC removed 616,413 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $2,761,530
- CABLE CAR CAPITAL, LP added 507,329 shares (+20.3%) to their portfolio in Q1 2026, for an estimated $2,272,833
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.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
