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89bio, Inc.
1W: +0.3% 1M: +1.0% 3M: +62.0% 1Y: +85.0% 3Y: +69.8% 5Y: -39.3%
$14.84
Last traded 2025-10-30 — delisted
NASDAQ · Healthcare · Biotechnology · $2.2B mcap · 146M float · 3.69% daily turnover · Short 23% of daily vol

🏦 Institutional Activity

Latest: Q1 2026
2
Institutions Holding
-197 vs prior
0.0%
Ownership
-0.00%
0 New
0 Increased
2 Reduced
2 Closed

👔 Insider Trades

25 records
Date Name Title Type Shares Price Value Filing
2025-10-30 Shah Rajeev M. director D-Sale to Issuer 335,364 $— $0 Filing
2025-10-30 Kolchinsky Peter director D-Sale to Issuer 335,364 $— $0 Filing
2025-10-30 Mansbach Harry H officer: chief medical officer U-Disposition Tender 352,656 $— $0 Filing
2025-10-30 Sarena Francis Willard officer: chief operating officer U-Disposition Tender 75,310 $— $0 Filing
2025-10-30 Le-Nguyen Quoc officer: see remarks A-Grant/Award 50,000 $— $0 Filing
2025-10-30 Le-Nguyen Quoc officer: see remarks U-Disposition Tender 351,684 $— $0 Filing
2025-10-30 Le-Nguyen Quoc officer: see remarks U-Disposition Tender 13,694 $— $0 Filing
2025-10-30 Mansbach Harry H officer: chief medical officer A-Grant/Award 50,000 $— $0 Filing
2025-10-30 PALEKAR ROHAN officer: chief executive officer A-Grant/Award 125,000 $— $0 Filing
2025-10-30 PALEKAR ROHAN officer: chief executive officer U-Disposition Tender 934,273 $— $0 Filing
2025-10-30 Martins Ryan officer: chief financial officer A-Grant/Award 35,000 $— $0 Filing
2025-10-30 Martins Ryan officer: chief financial officer U-Disposition Tender 374,295 $— $0 Filing
2025-10-30 Hayden Michael R director U-Disposition Tender 80,904 $— $0 Filing
2025-10-30 Hayden Michael R director U-Disposition Tender 103,978 $— $0 Filing
2025-10-30 Hayden Michael R director U-Disposition Tender 61,538 $— $0 Filing
2025-10-30 RA CAPITAL MANAGEMENT, L.P. director D-Sale to Issuer 19,554,319 $— $0 Filing
2025-10-30 RA Capital Healthcare Fund LP director D-Sale to Issuer 19,554,319 $— $0 Filing
2025-10-30 RA Capital Nexus Fund, L.P. director D-Sale to Issuer 19,554,319 $— $0 Filing
2025-10-30 Kolchinsky Peter director D-Sale to Issuer 19,554,319 $— $0 Filing
2025-10-30 Shah Rajeev M. director D-Sale to Issuer 19,554,319 $— $0 Filing
2025-10-30 RA CAPITAL MANAGEMENT, L.P. director D-Sale to Issuer 335,364 $— $0 Filing
2025-10-30 RA Capital Healthcare Fund LP director D-Sale to Issuer 335,364 $— $0 Filing
2025-10-30 RA Capital Nexus Fund, L.P. director D-Sale to Issuer 335,364 $— $0 Filing
2025-10-30 McWherter Charles director U-Disposition Tender 25,000 $— $0 Filing
2025-08-05 Sarena Francis Willard officer: chief operating officer F-Tax Withholding 2,979 $9.69 $29K Filing

🏛️ Congressional Trades

0 records
Date Politician Chamber Type Amount Filing
No congressional trades found

🏦 Top Institutional Holders

2 holders
Holder Shares Value Date Reported Filing
IFP Advisors, Inc 0 $0K -17 2026-03-31 Filing
DekaBank Deutsche Girozentrale 0 $0K -90,000 2026-03-31 Filing

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms