CATALYST BIOSCIENCES, INC. (CBIO) is a publicly traded company in the Unknown sector. Across all available filings, 29 corporate insiders have executed 163 transactions totaling $23.2M, demonstrating a bullish sentiment with $13.6M in net insider flow. The most recent transaction on Dec 15, 2025 involved a transaction of 12,422 shares valued at $0.
No significant insider buying has been recorded for CBIO in the recent period.
No significant insider selling has been recorded for CBIO in the recent period.
Based on recent SEC filings, insider sentiment for CBIO is bullish with an Insider Alignment Score of 79/100 and a net flow of $13.6M. Insiders are accumulating shares, which historically signals confidence in the company's future performance.
Insider trading at CATALYST BIOSCIENCES, INC. (CBIO) 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, 29 insiders are actively trading CBIO stock, having executed 163 transactions in the past 90 days. The most active insider is Peter Evan Harwin (Executive), who has made 1 transactions totaling $18.2M.
Get notified when executives and directors at CBIO file new Form 4 transactions
Date | Insider | Title | Type | Shares | Price | Value | Flags |
|---|---|---|---|---|---|---|---|
| Dec 15, 2025 | Harlin Bispham Barbara | Executive | Award | 12,422 | $N/A | $0 | |
| Dec 15, 2025 | Harlin Bispham Barbara | Executive | Award | 6,000 | $N/A | $0 | |
| Dec 15, 2025 | Lynch Ryan | Executive | Award | 4,000 | $N/A | $0 | |
| Dec 15, 2025 | Lynch Ryan | Executive | Award | 8,378 | $N/A | $0 | |
| Dec 15, 2025 | Eunkyung Im Ellie | Executive | Award | 16,298 | $N/A | $0 | |
| Dec 15, 2025 | Eunkyung Im Ellie | Executive | Award | 5,000 | $N/A | $0 | |
| Dec 15, 2025 | Mcneill Jonathan | Executive | Award | 6,000 | $N/A | $0 | |
| Dec 15, 2025 | Mcneill Jonathan | Executive | Award | 19,507 | $N/A | $0 | |
| Dec 15, 2025 | William Scalzo Richard | Executive | Award | 5,000 | $N/A | $0 | |
| Dec 15, 2025 | William Scalzo Richard | Executive | Award | 14,422 | $N/A | $0 | |
| Dec 15, 2025 | T. Brumm Joshua | Executive | Award | 10,000 | $N/A | $0 | |
| Dec 15, 2025 | T. Brumm Joshua | Executive | Award | 45,117 | $N/A | $0 | |
| Dec 15, 2025 | Grant Doughty Christopher | Executive | Award | 8,000 | $N/A | $0 | |
| Dec 15, 2025 | Grant Doughty Christopher | Executive | Award | 14,714 | $N/A | $0 | |
| Dec 15, 2025 | Pinkas Jan | Executive | Award | 17,507 | $N/A | $0 |
| TYPE | COUNT | VALUE | % |
|---|---|---|---|
Purchase(P) | 24 | $18.4M | 78.3% |
Sale(S) | 17 | $4.8M | 20.5% |
Exercise(M) | 11 | $141.5K | 0.6% |
Payment(F) | 1 | $81.6K | 0.3% |
Award(A) | 84 | $59.0K | 0.3% |
Disposition(D) | 10 | $1.9K | 0.0% |
Other(J) | 11 | $0 | 0.0% |
Gift(G) | 5 | $0 | 0.0% |
Insiders at CATALYST BIOSCIENCES, INC. are accumulating shares at an accelerated pace. With 29 insiders making 163 transactions totaling $18.4M in purchases versus $4.8M in sales, the net buying activity of $13.6M signals strong executive confidence. Peter Evan Harwin (Executive) leads the buying activity with $18.2M in transactions across all time.