$8.01
-1.14-12.46%
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$8.00
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89bio Insider Trading Activity | NASDAQ:ETNB | Benzinga
Track the latest 89bio insider trading activity. Stay informed on recent buys, sells, and market impact for 89bio stock.
What is Insider Activity?
Insider trading activity involves company insiders, such as executives, directors, and employees, engaging in transactions of their own company's stock. Insiders' buy and sell transactions provide valuable insights into their confidence in the company's future performance.
What are 89bio Inc Insiders Doing?
Insiders have report no purchases/sales in the last 30 days.
Notable Recent Insider Buys and Sales
- On February 3, 2025, RA CAPITAL MANAGEMENT LP, RA Capital Healthcare Fund LP, RA Capital Nexus Fund LP, Peter Kolchinsky, Rajeev Shah, the company's DIRECTOR purchased 5.71M shares for $8.75 each.
- On January 23, 2025, Charles McWherter, the company's - purchased 15K shares for $6.66 each.
- On January 17, 2025, Quoc Le-Nguyen, the company's SEE REMARKS sold 10.96K shares for $6.49 each.
Ownership Statistics for 89bio Inc
Shares Outstanding
145.984M
Insider Shares Owned
1.988M
Insider Percentage Owned
1.36%
Institutional Shares Held
53.716M
Institutional Percentage Held
36.8%
| Feb 03, 2025 | RA CAPITAL MANAGEMENT LPRA Capital Healthcare Fund LPRA Capital Nexus Fund LPPeter KolchinskyRajeev Shah | DIRECTOR | 5.71M | $8.75 | $50.00M | BUY | 40.31% | 19.89M | Jan 30 | View |
| Jan 23, 2025 | Charles McWherter | — | 15.00K | $6.66 | $99.85K | BUY | 150.00% | 25.00K | Jan 21 - Jan 22 | View |
| Jan 17, 2025 | Quoc Le-Nguyen | SEE REMARKS | -10.96K | $6.49 | -$71.15K | SELL | -3.88% | 271.83K | Jan 15 | View |
| Dec 10, 2024 | Rohan Palekar | CHIEF EXECUTIVE OFFICER | 5.00K | $7.89 | $39.45K | BUY | 1.07% | 471.24K | Dec 06 | View |
| Dec 09, 2024 | Charles McWherter | — | 10.00K | $8.00 | $80.00K | BUY | ∞ | 10.00K | Dec 05 | View |
| Nov 25, 2024 | Rohan Palekar | CHIEF EXECUTIVE OFFICER | 10.00K | $8.35 | $83.50K | BUY | 2.19% | 466.24K | Nov 22 | View |
| Nov 01, 2024 | Quoc Le-Nguyen | SEE REMARKS | -27.95K | $8.12 | -$226.99K | SELL | -12.96% | 187.80K | Oct 30 | View |
| Apr 03, 2024 | Rohan Palekar | CHIEF EXECUTIVE OFFICER | -27.72K | $6.42 | -$526.90K | SELL | -5.69% | 459.17K | Apr 01 | View |
| Mar 06, 2024 | RA CAPITAL MANAGEMENT LPRA Capital Healthcare Fund LPRA Capital Nexus Fund LPPeter KolchinskyRajeev Shah | DIRECTOR | 1.35M | $15.35 | $20.72M | BUY | 11.82% | 12.77M | Mar 04 | View |
| Feb 28, 2024 | Rohan Palekar | CHIEF EXECUTIVE OFFICER | -4.48K | $10.76 | -$48.17K | SELL | -0.91% | 486.89K | Feb 26 | View |
| Jan 03, 2024 | Rohan Palekar | CHIEF EXECUTIVE OFFICER | 0.00 | $6.56 | -$463.50K | SELL-OPTIONS | 0.00% | 301.23K | Dec 29 | View |
| Jul 18, 2023 | Kathleen LaPorte | — | 0.00 | $10.72 | -$202.00K | SELL-OPTIONS | 0.00% | 0.00 | Jul 17 | View |
| Jun 07, 2023 | Rohan Palekar | CHIEF EXECUTIVE OFFICER | 0.00 | $10.96 | -$271.05K | SELL-OPTIONS | 0.00% | 286.98K | Jun 05 | View |
| Jun 05, 2023 | Edward Morrow Atkinson III | — | 0.00 | $10.26 | -$95.63K | SELL-OPTIONS | 0.00% | 0.00 | Jun 01 | View |
| May 11, 2023 | Quoc Le-Nguyen | SEE REMARKS | 65.89K | $10.61 | -$333.32 | SELL-OPTIONS | 66.50% | 164.97K | May 09 | View |
| Apr 06, 2023 | Ryan Martins | CHIEF FINANCIAL OFFICER | -8.72K | $14.95 | -$130.38K | SELL | -14.00% | 53.58K | Apr 04 | View |
| Mar 30, 2023 | RA CAPITAL MANAGEMENT LPRA Capital Healthcare Fund LPRA Capital Nexus Fund LPPeter KolchinskyRajeev Shah | DIRECTOR | 2.46M | $16.25 | $40.00M | BUY | 27.49% | 11.42M | Mar 24 | View |
| Mar 30, 2023 | Michael R Hayden | — | 87.79K | $12.28 | $1.08M | BUY | 160.63% | 142.44K | Mar 30 - Mar 28 | View |
| Mar 27, 2023 | Ryan Martins | CHIEF FINANCIAL OFFICER | -5.00K | $16.11 | -$80.55K | SELL | -8.54% | 53.58K | Mar 23 | View |
| Mar 27, 2023 | Rohan Palekar | CHIEF EXECUTIVE OFFICER | -15.00K | $16.00 | -$240.00K | SELL | -5.28% | 269.08K | Mar 23 | View |
| Mar 03, 2023 | Edward Morrow Atkinson III | DIRECTOR | 0.00 | $9.02 | -$91.60K | SELL-OPTIONS | 0.00% | 0.00 | Mar 01 | View |
| Feb 22, 2023 | Ryan Martins | CHIEF FINANCIAL OFFICER | -4.29K | $13.92 | -$59.73K | SELL | -6.82% | 58.58K | Feb 17 - Feb 21 | View |
| Feb 10, 2023 | Ryan Martins | CHIEF FINANCIAL OFFICER | -1.48K | $14.41 | -$21.33K | SELL | -4.31% | 32.87K | Feb 08 | View |
| Feb 07, 2023 | Ryan Martins | CHIEF FINANCIAL OFFICER | -1.18K | $8.09 | -$45.36K | SELL | -3.33% | 34.35K | Feb 03 - Feb 05 | View |
| Jan 05, 2023 | Ryan Martins | CHIEF FINANCIAL OFFICER | -5.95K | $12.51 | -$74.40K | SELL | -14.05% | 36.37K | Jan 03 | View |
| Oct 20, 2022 | RA CAPITAL MANAGEMENT LPRA Capital Healthcare Fund LPRA Capital Nexus Fund LPPeter KolchinskyRajeev Shah | DIRECTOR | 1.17M | $7.65 | $8.97M | BUY | 15.07% | 8.96M | Oct 18 | View |
| Jul 06, 2022 | RA CAPITAL MANAGEMENT LPRA Capital Healthcare Fund LPRA Capital Nexus Fund LPPeter KolchinskyRajeev Shah | DIRECTOR | 2.82M | $3.55 | $10.00M | BUY | 56.73% | 7.78M | Jul 01 | View |
| Feb 03, 2022 | Ram Waisbourd | SEE REMARKS | 0.00 | $3.81 | -$26.39K | SELL-OPTIONS | 0.00% | 0.00 | Feb 01 | View |
| Jan 31, 2022 | Rohan Palekar | CHIEF EXECUTIVE OFFICER | 7.50K | $7.05 | $52.85K | BUY | 19.56% | 45.84K | Jan 27 - Jan 28 | View |
| Jan 27, 2022 | ORBIMED ADVISORS LLCOrbiMed Capital GP VI LLCOrbiMed Advisors Israel II LtdOrbiMed Israel GP II LP | 10% OWNER | -70.57K | $8.39 | -$592.38K | SELL | -3.71% | 1.83M | Jan 25 - Jan 26 | View |
| Dec 20, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $6.71 | -$66.85K | SELL-OPTIONS | 0.00% | 0.00 | Dec 16 | View |
| Nov 18, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $9.21 | -$101.92K | SELL-OPTIONS | 0.00% | 0.00 | Nov 16 | View |
| Oct 20, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $9.71 | -$108.92K | SELL-OPTIONS | 0.00% | 0.00 | Oct 18 | View |
| Sep 20, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $10.70 | -$122.71K | SELL-OPTIONS | 0.00% | 0.00 | Sep 16 | View |
| Aug 18, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $10.11 | -$114.45K | SELL-OPTIONS | 0.00% | 0.00 | Aug 16 | View |
| Jul 19, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $9.37 | -$104.09K | SELL-OPTIONS | 0.00% | 0.00 | Jul 16 | View |
| Jul 08, 2021 | Rohan Palekar | CHIEF EXECUTIVE OFFICER | 7.00K | $16.84 | $117.85K | BUY | 23.33% | 37.00K | Jul 07 - Jul 08 | View |
| Jun 21, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $10.80 | -$124.18K | SELL-OPTIONS | 0.00% | 0.00 | Jun 16 | View |
| Jun 04, 2021 | RA CAPITAL MANAGEMENT LPRA Capital Healthcare Fund LPPeter KolchinskyRajeev Shah | DIRECTOR | 22.14K | $18.77 | $415.53K | BUY | 0.45% | 4.97M | Jun 02 | View |
| May 28, 2021 | RA CAPITAL MANAGEMENT LPRA Capital Healthcare Fund LPPeter KolchinskyRajeev Shah | DIRECTOR | 207.42K | $18.60 | $3.86M | BUY | 4.38% | 4.94M | May 26 - May 28 | View |
| May 19, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $11.77 | -$137.76K | SELL-OPTIONS | 0.00% | 0.00 | May 17 | View |
| Apr 23, 2021 | Gregory Grunberg | DIRECTOR | -850.00 | $27.60 | -$23.46K | SELL | -0.05% | 1.75M | Apr 21 | View |
| Apr 20, 2021 | Ryan Martins | CHIEF FINANCIAL OFFICER | 0.00 | $14.05 | -$218.90K | SELL-OPTIONS | 0.00% | 7.50K | Apr 19 | View |
| Apr 19, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $13.07 | -$156.03K | SELL-OPTIONS | 0.00% | 0.00 | Apr 16 | View |
| Mar 17, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $13.06 | -$155.89K | SELL-OPTIONS | 0.00% | 0.00 | Mar 16 | View |
| Feb 17, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $12.66 | -$150.22K | SELL-OPTIONS | 0.00% | 0.00 | Feb 16 | View |
| Jan 20, 2021 | Ram Waisbourd | SEE REMARKS | 0.00 | $11.54 | -$134.61K | SELL-OPTIONS | 0.00% | 0.00 | Jan 19 | View |
| Dec 18, 2020 | Ram Waisbourd | — | 0.00 | $14.48 | -$175.77K | OPTION EXERCISE | 0.00% | 0.00 | Dec 16 | View |
| Nov 18, 2020 | Quoc Le-Nguyen | — | 0.00 | $15.61 | -$113.70K | OPTION EXERCISE | 0.00% | 0.00 | Nov 16 | View |
| Nov 18, 2020 | Ram Waisbourd | — | 0.00 | $14.66 | -$178.22K | OPTION EXERCISE | 0.00% | 0.00 | Nov 16 | View |
| Sep 23, 2020 | ORBIMED ADVISORS LLCOrbiMed Capital GP VI LLCOrbiMed Advisors Israel II LtdOrbiMed Israel GP II LP | — | -275.00K | $28.00 | -$7.70M | SELL | -12.85% | 1.86M | Sep 21 | View |
| Sep 23, 2020 | Anat Naschitz | — | -275.00K | $28.00 | -$7.70M | SELL | -12.85% | 1.86M | Sep 21 | View |
| Sep 21, 2020 | RA CAPITAL MANAGEMENT LPRA Capital Healthcare Fund LPPeter KolchinskyRajeev Shah | — | 1.30M | $28.00 | $36.40M | PURCHASE | 37.83% | 4.74M | Sep 17 | View |
| Jul 14, 2020 | Longitude Capital Partners III LLCLongitude Venture Partners III LPJuliet Bakker TammenomsPATRICK ENRIGHT | — | 109.09K | $27.50 | $3.00M | PURCHASE | 4.38% | 2.60M | Jul 10 | View |
| Jul 14, 2020 | Gregory Grunberg | — | 109.09K | $27.50 | $3.00M | PURCHASE | 4.38% | 2.60M | Jul 10 | View |
| Jul 10, 2020 | RA CAPITAL MANAGEMENT LPRA Capital Healthcare Fund LPPeter KolchinskyRajeev Shah | DIRECTOR | 275.00K | $27.50 | $7.56M | BUY | 8.70% | 3.44M | Jul 08 | View |
FAQ
Is insider trading legal?
Insider trading is legal so long as the insiders report those trades to the SEC. Illegal securities trading occurs when the insider is violating a fiduciary duty or fails to report their trades.
What are some examples of market manipulation?
Insider trading, pump and dump schemes, front running and wash trades are all examples of market manipulation. Investors who track insider asset movement should think carefully about why these insiders are trading their stocks before moving forward.
Browse insider trades on all stocks.