ARBIOS SYSTEMS INC (ABOS) is a publicly traded company in the Unknown sector. Across all available filings, 24 corporate insiders have executed 117 transactions totaling $100.1M, demonstrating a bullish sentiment with $98.7M in net insider flow. The most recent transaction on Jan 28, 2026 involved a transaction of 2,671 shares valued at $0.
No significant insider buying has been recorded for ABOS in the recent period.
No significant insider selling has been recorded for ABOS in the recent period.
Based on recent SEC filings, insider sentiment for ABOS is bullish with an Insider Alignment Score of 99/100 and a net flow of $98.7M. Insiders are accumulating shares, which historically signals confidence in the company's future performance.
Insider trading at ARBIOS SYSTEMS INC (ABOS) refers to stock transactions made by corporate insiders—executives, directors, and beneficial owners holding more than 10% of the company's shares. These individuals have access to material non-public information and are required by law to report their trades to the SEC within two business days. Currently, 24 insiders are actively trading ABOS stock, having executed 117 transactions in the past 90 days. The most active insider is Capital Management, L.p. Ra (Executive), who has made 1 transactions totaling $40.0M.
Get notified when executives and directors at ABOS file new Form 4 transactions
Date | Insider | Title | Type | Shares | Price | Value | Flags |
|---|---|---|---|---|---|---|---|
| Jan 28, 2026 | M. Meisner Derek | Chief Legal Officer & Corp Sec | Option Exercise | 2,671 | $N/A | $0 | |
| Jan 28, 2026 | M. Meisner Derek | Chief Legal Officer & Corp Sec | Sale | 2,671 | $3.00 | $8.0K | |
| Jan 28, 2026 | M. Meisner Derek | Chief Legal Officer & Corp Sec | Option Exercise | 2,671 | $1.85 | $4.9K | |
| Jan 26, 2026 | M. Meisner Derek | Chief Legal Officer & Corp Sec | Option Exercise | 15,085 | $N/A | $0 | |
| Jan 26, 2026 | M. Meisner Derek | Chief Legal Officer & Corp Sec | Sale | 15,085 | $3.00 | $45.3K | |
| Jan 26, 2026 | M. Meisner Derek | Chief Legal Officer & Corp Sec | Option Exercise | 15,085 | $1.85 | $27.9K | |
| Jan 23, 2026 | M. Meisner Derek | Chief Legal Officer & Corp Sec | Sale | 5,633 | $1.90 | $10.7K | |
| Jan 22, 2026 | Zuga Matt | CFO & Chief Business Officer | Sale | 1,687 | $1.86 | $3.1K | C-Suite |
| Jan 22, 2026 | Siemers Eric | Chief Medical Officer | Sale | 895 | $1.82 | $1.6K | |
| Jan 22, 2026 | M. Meisner Derek | Chief Legal Officer & Corp Sec | Sale | 1,054 | $1.84 | $1.9K | |
| Jan 22, 2026 | Barton Russell | Chief Operating Officer | Sale | 462 | $1.84 | $850 | C-Suite |
| Jan 22, 2026 | Joseph Oconnell Daniel | Executive | Sale | 2,689 | $1.88 | $5.1K | |
| Jan 21, 2026 | Zuga Matt | CFO & Chief Business Officer | Sale | 2,473 | $1.81 | $4.5K | C-Suite |
| Jan 21, 2026 | Siemers Eric | Chief Medical Officer | Sale | 2,331 | $1.80 | $4.2K | |
| Jan 21, 2026 | M. Meisner Derek | Chief Legal Officer & Corp Sec | Sale | 2,247 | $1.81 | $4.1K |
| TYPE | COUNT | VALUE | % |
|---|---|---|---|
Purchase(P) | 15 | $99.4M | 99.1% |
Sale(S) | 36 | $721.7K | 0.7% |
Exercise(M) | 8 | $128.9K | 0.1% |
Award(A) | 38 | $3.0K | 0.0% |
Payment(F) | 1 | $160 | 0.0% |
Exercise (Options)(X) | 1 | $156 | 0.0% |
Conversion(C) | 15 | $0 | 0.0% |
Gift(G) | 3 | $0 | 0.0% |
Insiders at ARBIOS SYSTEMS INC are accumulating shares at an accelerated pace. With 24 insiders making 117 transactions totaling $99.4M in purchases versus $721.7K in sales, the net buying activity of $98.7M signals strong executive confidence. Capital Management, L.p. Ra (Executive) leads the buying activity with $40.0M in transactions across all time.