United States Biotechnology & Medical Research

89Bio Inc (ETNB)

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Ticker: ETNB Exchange: NMS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Le-Nguyen Quoc
See Remarks
1 sale — total 115,280 USD
Planned sale 15 Jul 2025
Value US$2,504,506.87 | Price 332.80 | Shares 94,592
Proposed sale 15 Jul 2025
Value US$3,826,422.91 | Price 430.89 | Shares 23,740
Planned sale 15 Apr 2025
Value US$91,207.55 | Price 5.95 | Shares 15,329
Proposed sale 15 Apr 2025
Value US$91,170.76 | Price 5.95 | Shares 15,329
Buy 30 Jan 2025
Value US$49,999,993.75 | Price 8.75 | Shares 5,714,285
Buy 22 Jan 2025
Value US$67,100.00 | Price 6.71 | Shares 10,000
Buy 21 Jan 2025
Value US$32,750.00 | Price 6.55 | Shares 5,000
Planned sale 15 Jan 2025
Value US$71,149.87 | Price 6.49 | Shares 10,963
Proposed sale 15 Jan 2025
Value US$71,110.40 | Price 6.49 | Shares 10,963
Buy 6 Dec 2024
Value US$39,450.00 | Price 7.89 | Shares 5,000
Buy 5 Dec 2024
Value US$80,000.00 | Price 8.00 | Shares 10,000
Buy 22 Nov 2024
Value US$83,500.00 | Price 8.35 | Shares 10,000
Planned sale 30 Oct 2024
Value US$226,994.60 | Price 8.12 | Shares 27,955
Proposed sale 30 Oct 2024
Value US$226,972.24 | Price 8.12 | Shares 27,955
Planned sale 1 Apr 2024
Value US$575,153.38 | Price 10.91 | Shares 52,718
Proposed sale 1 Apr 2024
Value US$574,933.05 | Price 10.91 | Shares 52,718
Buy 4 Mar 2024
Value US$20,722,500.00 | Price 15.35 | Shares 1,350,000
Planned sale 26 Feb 2024
Value US$48,172.52 | Price 10.76 | Shares 4,477
Proposed sale 26 Feb 2024
Value US$48,172.52 | Price 10.76 | Shares 4,477
Planned sale 29 Dec 2023
Value US$560,000.00 | Price 11.20 | Shares 50,000
Proposed sale 29 Dec 2023
Value US$560,010.00 | Price 11.20 | Shares 50,000
Sale 17 Jul 2023
Value US$235,000.00 | Price 18.80 | Shares 12,500
Proposed sale 17 Jul 2023
Value US$235,015.91 | Price 18.80 | Shares 12,500
Planned sale 5 Jun 2023
Value US$300,000.00 | Price 20.00 | Shares 15,000
Proposed sale 5 Jun 2023
Value US$300,000.00 | Price 20.00 | Shares 15,000
Planned sale 1 Jun 2023
Value US$111,937.50 | Price 17.91 | Shares 6,250
Proposed sale 1 Jun 2023
Value US$111,960.63 | Price 17.91 | Shares 6,250
Planned sale 9 May 2023
Value US$247,799.13 | Price 18.11 | Shares 13,683
Proposed sale 9 May 2023
Value US$247,799.13 | Price 18.11 | Shares 13,683
Planned sale 4 Apr 2023
Value US$130,378.95 | Price 14.95 | Shares 8,721
Buy 28 Mar 2023
Value US$993,838.70 | Price 16.15 | Shares 61,538
Buy 24 Mar 2023
Value US$39,999,992.50 | Price 16.25 | Shares 2,461,538
Planned sale 23 Mar 2023
Value US$80,550.00 | Price 16.11 | Shares 5,000
Planned sale 23 Mar 2023
Value US$240,000.00 | Price 16.00 | Shares 15,000
Planned sale 1 Mar 2023
Value US$136,000.00 | Price 13.60 | Shares 10,000
Planned sale 21 Feb 2023
Value US$35,280.60 | Price 13.89 | Shares 2,540
Planned sale 8 Feb 2023
Value US$21,326.80 | Price 14.41 | Shares 1,480
Planned sale 3 Feb 2023
Value US$7,518.40 | Price 12.70 | Shares 592
Planned sale 3 Feb 2023
Value US$39,330.00 | Price 13.11 | Shares 3,000
Planned sale 3 Jan 2023
Value US$74,396.97 | Price 12.51 | Shares 5,947
Buy 18 Oct 2022
Value US$8,971,468.65 | Price 7.65 | Shares 1,172,741
Buy 1 Jul 2022
Value US$9,999,995.00 | Price 3.55 | Shares 2,816,900
Buy 25 Apr 2022
Value US$26,700.00 | Price 2.67 | Shares 10,000
Buy 7 Apr 2022
Value US$34,750.00 | Price 3.48 | Shares 10,000
Buy 30 Mar 2022
Value US$22,625.00 | Price 3.62 | Shares 6,250
Planned sale 1 Feb 2022
Value US$39,900.00 | Price 5.70 | Shares 7,000
Planned buy 28 Jan 2022
Value US$15,350.00 | Price 6.14 | Shares 2,500
Planned buy 27 Jan 2022
Value US$37,500.00 | Price 7.50 | Shares 5,000
Sale 26 Jan 2022
Value US$90,001.20 | Price 8.38 | Shares 10,740
Sale 26 Jan 2022
Value US$90,017.96 | Price 8.38 | Shares 10,742
Sale 25 Jan 2022
Value US$206,178.00 | Price 8.40 | Shares 24,545
Sale 25 Jan 2022
Value US$206,186.40 | Price 8.40 | Shares 24,546
Planned sale 16 Dec 2021
Value US$80,360.00 | Price 11.48 | Shares 7,000
Planned sale 16 Nov 2021
Value US$115,430.00 | Price 16.49 | Shares 7,000
Planned sale 18 Oct 2021
Value US$122,430.00 | Price 17.49 | Shares 7,000
Planned sale 16 Jun 2021
Value US$137,690.00 | Price 19.67 | Shares 7,000
Sale 21 Apr 2021
Value US$23,460.00 | Price 27.60 | Shares 850
Planned sale 19 Apr 2021
Value US$250,000.00 | Price 25.00 | Shares 10,000
Planned sale 16 Apr 2021
Value US$169,540.00 | Price 24.22 | Shares 7,000
Planned sale 16 Mar 2021
Value US$169,400.00 | Price 24.20 | Shares 7,000
Planned sale 16 Feb 2021
Value US$163,730.00 | Price 23.39 | Shares 7,000
Planned sale 19 Jan 2021
Value US$148,120.00 | Price 21.16 | Shares 7,000
Planned sale 16 Dec 2020
Value US$189,280.00 | Price 27.04 | Shares 7,000
Planned sale 16 Nov 2020
Value US$191,730.00 | Price 27.39 | Shares 7,000
Planned sale 16 Nov 2020
Value US$127,844.28 | Price 28.11 | Shares 4,548
Sale 21 Sep 2020
Value US$3,850,000.00 | Price 28.00 | Shares 137,500
Sale 21 Sep 2020
Value US$3,850,000.00 | Price 28.00 | Shares 137,500
Sale 21 Sep 2020
Value US$3,850,000.00 | Price 28.00 | Shares 137,500
Sale 21 Sep 2020
Value US$3,850,000.00 | Price 28.00 | Shares 137,500
Buy 17 Sep 2020
Value US$36,400,000.00 | Price 28.00 | Shares 1,300,000
Buy 10 Jul 2020
Value US$2,999,975.00 | Price 27.50 | Shares 109,090
Buy 10 Jul 2020
Value US$2,999,975.00 | Price 27.50 | Shares 109,090
Buy 8 Jul 2020
Value US$7,562,500.00 | Price 27.50 | Shares 275,000
Buy 11 Nov 2019
Value US$4,000,000.00 | Price 16.00 | Shares 250,000
Buy 11 Nov 2019
Value US$9,200,000.00 | Price 16.00 | Shares 575,000
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2025-07-17 2025-07-15 PlS Planned sale
Le-Nguyen Quoc

See Remarks

Officer
94,592 -6.5%
332.80
US$2,504,507 		94,592 -6.5% 332.80 US$2,504,507
2025-07-15 2025-07-15 PrS Proposed sale
QUOC LE-NGUYEN

Officer

Officer
23,740
430.89
US$3,826,423 		23,740 430.89 US$3,826,423
2025-04-17 2025-04-15 PlS Planned sale
Le-Nguyen Quoc

See Remarks

Officer
55,161 -9.1%
243.27
US$4,109,813 		55,161 -9.1% 243.27 US$4,109,813
2025-04-15 2025-04-15 PrS Proposed sale
QUOC LE-NGUYEN

Officer

Officer
15,329
5.95
US$91,171 		15,329 5.95 US$91,171
2025-02-03 2025-01-30 B Purchase
3.0
RA CAPITAL MANAGEMENT, L.P.
Non-Executive Director Large shareholder
5,714,285 +41.3%
8.75
US$49,999,994 		5,714,285 +41.3% 8.75 US$49,999,994
2025-01-23 2025-01-22 B Purchase
2.7
McWherter Charles
Non-Executive Director
10,000 +66.7%
6.71
US$67,100 		10,000 +66.7% 6.71 US$67,100
2025-01-23 2025-01-21 B Purchase
2.7
McWherter Charles
Non-Executive Director
5,000 +50.0%
6.55
US$32,750 		5,000 +50.0% 6.55 US$32,750
2025-01-17 2025-01-15 PlS Planned sale
Le-Nguyen Quoc

See Remarks

Officer
10,963 -3.9%
6.49
US$71,150 		10,963 -3.9% 6.49 US$71,150
2025-01-15 2025-01-15 PrS Proposed sale
QUOC LE-NGUYEN

Officer

Officer
10,963
6.49
US$71,110 		10,963 6.49 US$71,110
2024-12-10 2024-12-06 B Purchase
2.4
PALEKAR ROHAN

Chief Executive Officer

Executive Director
5,000 +1.1%
7.89
US$39,450 		5,000 +1.1% 7.89 US$39,450
2024-12-09 2024-12-05 B Purchase
2.7
McWherter Charles
Non-Executive Director
10,000 +inf%
8.00
US$80,000 		10,000 +inf% 8.00 US$80,000
2024-11-25 2024-11-22 B Purchase
2.4
PALEKAR ROHAN

Chief Executive Officer

Executive Director
10,000 +2.2%
8.35
US$83,500 		10,000 +2.2% 8.35 US$83,500
2024-11-01 2024-10-30 PlS Planned sale
Le-Nguyen Quoc

See Remarks

Officer
27,955 -13.0%
8.12
US$226,995 		27,955 -13.0% 8.12 US$226,995
2024-10-30 2024-10-30 PrS Proposed sale
QUOC LE-NGUYEN

Officer

Officer
27,955
8.12
US$226,972 		27,955 8.12 US$226,972
2024-04-03 2024-04-01 PlS Planned sale
2.4
PALEKAR ROHAN

Chief Executive Officer

Executive Director
52,718 -10.3%
10.91
US$575,153 		52,718 -10.3% 10.91 US$575,153
2024-04-01 2024-04-01 PrS Proposed sale
2.4
ROHAN PALEKAR

Officer; Director

Executive Director
52,718
10.91
US$574,933 		52,718 10.91 US$574,933
2024-03-06 2024-03-04 B Purchase
3.0
RA CAPITAL MANAGEMENT, L.P.
Non-Executive Director Large shareholder
1,350,000 +12.2%
15.35
US$20,722,500 		1,350,000 +12.2% 15.35 US$20,722,500
2024-02-28 2024-02-26 PlS Planned sale
2.4
PALEKAR ROHAN

Chief Executive Officer

Executive Director
4,477 -0.9%
10.76
US$48,173 		4,477 -0.9% 10.76 US$48,173
2024-02-26 2024-02-26 PrS Proposed sale
2.4
ROHAN PALEKAR

Officer; Director

Executive Director
4,477
10.76
US$48,173 		4,477 10.76 US$48,173
2024-01-03 2023-12-29 PlS Planned sale
2.4
PALEKAR ROHAN

Chief Executive Officer

Executive Director
50,000 -14.2%
11.20
US$560,000 		50,000 -14.2% 11.20 US$560,000
2023-12-29 2023-12-29 PrS Proposed sale
2.4
ROHAN PALEKAR

Officer; Director

Executive Director
50,000
11.20
US$560,010 		50,000 11.20 US$560,010
2023-07-18 2023-07-17 S Sale
3.4
LAPORTE KATHLEEN
Non-Executive Director
12,500 -100.0%
18.80
US$235,000 		12,500 -100.0% 18.80 US$235,000
2023-07-17 2023-07-17 PrS Proposed sale
3.4
LAPORTE KATHLEEN

Director

Non-Executive Director
12,500
18.80
US$235,016 		12,500 18.80 US$235,016
2023-06-07 2023-06-05 PlS Planned sale
2.4
PALEKAR ROHAN

Chief Executive Officer

Executive Director
15,000 -5.0%
20.00
US$300,000 		15,000 -5.0% 20.00 US$300,000
2023-06-05 2023-06-05 PrS Proposed sale
2.4
ROHAN PALEKAR

Officer; Director

Executive Director
15,000
20.00
US$300,000 		15,000 20.00 US$300,000
2023-06-05 2023-06-01 PlS Planned sale
Atkinson Edward Morrow III
Non-Executive Director
6,250 -100.0%
17.91
US$111,938 		6,250 -100.0% 17.91 US$111,938
2023-06-01 2023-06-01 PrS Proposed sale
EDWARD M ATKINSON

Director

Non-Executive Director
6,250
17.91
US$111,961 		6,250 17.91 US$111,961
2023-05-11 2023-05-09 PlS Planned sale
Le-Nguyen Quoc

See Remarks

Officer
13,683 -7.7%
18.11
US$247,799 		13,683 -7.7% 18.11 US$247,799
2023-05-09 2023-05-09 PrS Proposed sale
QUOC LE-NGUYEN

Officer

Officer
13,683
18.11
US$247,799 		13,683 18.11 US$247,799
2023-04-06 2023-04-04 PlS Planned sale
Martins Ryan

Chief Financial Officer

Officer
8,721 -14.0%
14.95
US$130,379 		8,721 -14.0% 14.95 US$130,379
2023-03-30 2023-03-28 B Purchase
3.1
Hayden Michael R
Non-Executive Director
61,538 +inf%
16.15
US$993,839 		61,538 +inf% 16.15 US$993,839
2023-03-30 2023-03-24 B Purchase
3.0
RA CAPITAL MANAGEMENT, L.P.
Non-Executive Director Large shareholder
2,461,538 +28.6%
16.25
US$39,999,992 		2,461,538 +28.6% 16.25 US$39,999,992
2023-03-27 2023-03-23 PlS Planned sale
Martins Ryan

Chief Financial Officer

Officer
5,000 -8.5%
16.11
US$80,550 		5,000 -8.5% 16.11 US$80,550
2023-03-27 2023-03-23 PlS Planned sale
2.4
PALEKAR ROHAN

Chief Executive Officer

Executive Director
15,000 -5.3%
16.00
US$240,000 		15,000 -5.3% 16.00 US$240,000
2023-03-03 2023-03-01 PlS Planned sale
Atkinson Edward Morrow III
Non-Executive Director
10,000 -100.0%
13.60
US$136,000 		10,000 -100.0% 13.60 US$136,000
2023-02-22 2023-02-21 PlS Planned sale
Martins Ryan

Chief Financial Officer

Officer
2,540 -4.2%
13.89
US$35,281 		2,540 -4.2% 13.89 US$35,281
2023-02-10 2023-02-08 PlS Planned sale
Martins Ryan

Chief Financial Officer

Officer
1,480 -4.3%
14.41
US$21,327 		1,480 -4.3% 14.41 US$21,327
2023-02-07 2023-02-03 PlS Planned sale
Martins Ryan

Chief Financial Officer

Officer
592 -1.6%
12.70
US$7,518 		592 -1.6% 12.70 US$7,518
2023-02-07 2023-02-03 PlS Planned sale
Martins Ryan

Chief Financial Officer

Officer
3,000 -7.1%
13.11
US$39,330 		3,000 -7.1% 13.11 US$39,330
2023-01-05 2023-01-03 PlS Planned sale
Martins Ryan

Chief Financial Officer

Officer
5,947 -14.1%
12.51
US$74,397 		5,947 -14.1% 12.51 US$74,397
2022-10-20 2022-10-18 B Purchase
3.0
RA CAPITAL MANAGEMENT, L.P.
Non-Executive Director Large shareholder
1,172,741 +15.1%
7.65
US$8,971,469 		1,172,741 +15.1% 7.65 US$8,971,469
2022-07-06 2022-07-01 B Purchase
3.0
RA CAPITAL MANAGEMENT, L.P.
Non-Executive Director Large shareholder
2,816,900 +56.7%
3.55
US$9,999,995 		2,816,900 +56.7% 3.55 US$9,999,995
2023-03-30 2022-04-25 B Purchase
3.1
Hayden Michael R
Non-Executive Director
10,000 +10.6%
2.67
US$26,700 		10,000 +10.6% 2.67 US$26,700
2023-03-30 2022-04-07 B Purchase
3.1
Hayden Michael R
Non-Executive Director
10,000 +11.9%
3.48
US$34,750 		10,000 +11.9% 3.48 US$34,750
2023-03-30 2022-03-30 B Purchase
3.1
Hayden Michael R
Non-Executive Director
6,250 +8.0%
3.62
US$22,625 		6,250 +8.0% 3.62 US$22,625
2022-02-03 2022-02-01 PlS Planned sale
Waisbourd Ram

See Remarks

Officer
7,000 -100.0%
5.70
US$39,900 		7,000 -100.0% 5.70 US$39,900
2022-01-31 2022-01-28 PP Planned purchase
2.4
PALEKAR ROHAN

Chief Executive Officer

Executive Director
2,500 +5.8%
6.14
US$15,350 		2,500 +5.8% 6.14 US$15,350
2022-01-31 2022-01-27 PP Planned purchase
2.4
PALEKAR ROHAN

Chief Executive Officer

Executive Director
5,000 +13.0%
7.50
US$37,500 		5,000 +13.0% 7.50 US$37,500
2022-01-27 2022-01-26 S Sale
2.6
ORBIMED ADVISORS LLC
Large shareholder
10,740 -0.6%
8.38
US$90,001 		10,740 -0.6% 8.38 US$90,001
2022-01-27 2022-01-26 S Sale
2.6
ORBIMED ADVISORS LLC
Large shareholder
10,742 -0.6%
8.38
US$90,018 		10,742 -0.6% 8.38 US$90,018
2022-01-27 2022-01-25 S Sale
2.6
ORBIMED ADVISORS LLC
Large shareholder
24,545 -1.3%
8.40
US$206,178 		24,545 -1.3% 8.40 US$206,178
2022-01-27 2022-01-25 S Sale
2.6
ORBIMED ADVISORS LLC
Large shareholder
24,546 -1.3%
8.40
US$206,186 		24,546 -1.3% 8.40 US$206,186
2021-12-20 2021-12-16 PlS Planned sale
Waisbourd Ram

See Remarks

Officer
7,000 -100.0%
11.48
US$80,360 		7,000 -100.0% 11.48 US$80,360
2021-11-18 2021-11-16 PlS Planned sale
Waisbourd Ram

See Remarks

Officer
7,000 -100.0%
16.49
US$115,430 		7,000 -100.0% 16.49 US$115,430
2021-10-20 2021-10-18 PlS Planned sale
Waisbourd Ram

See Remarks

Officer
7,000 -100.0%
17.49
US$122,430 		7,000 -100.0% 17.49 US$122,430
2021-06-21 2021-06-16 PlS Planned sale
Waisbourd Ram

See Remarks

Officer
7,000 -100.0%
19.67
US$137,690 		7,000 -100.0% 19.67 US$137,690
2021-04-23 2021-04-21 S Sale
3.3
Grunberg Gregory
Non-Executive Director
850 -100.0%
27.60
US$23,460 		850 -100.0% 27.60 US$23,460
2021-04-20 2021-04-19 PlS Planned sale
Martins Ryan

Chief Financial Officer

Officer
10,000 -57.1%
25.00
US$250,000 		10,000 -57.1% 25.00 US$250,000
2021-04-19 2021-04-16 PlS Planned sale
Waisbourd Ram

See Remarks

Officer
7,000 -100.0%
24.22
US$169,540 		7,000 -100.0% 24.22 US$169,540
2021-03-17 2021-03-16 PlS Planned sale
Waisbourd Ram

See Remarks

Officer
7,000 -100.0%
24.20
US$169,400 		7,000 -100.0% 24.20 US$169,400
2021-02-17 2021-02-16 PlS Planned sale
Waisbourd Ram

See Remarks

Officer
7,000 -100.0%
23.39
US$163,730 		7,000 -100.0% 23.39 US$163,730
2021-01-20 2021-01-19 PlS Planned sale
Waisbourd Ram

See Remarks

Officer
7,000 -100.0%
21.16
US$148,120 		7,000 -100.0% 21.16 US$148,120
2020-12-18 2020-12-16 PlS Planned sale
Waisbourd Ram

See Remarks

Officer
7,000 -100.0%
27.04
US$189,280 		7,000 -100.0% 27.04 US$189,280
2020-11-18 2020-11-16 PlS Planned sale
Waisbourd Ram

COO and Chief Business Officer

Officer
7,000 -100.0%
27.39
US$191,730 		7,000 -100.0% 27.39 US$191,730
2020-11-18 2020-11-16 PlS Planned sale
Le-Nguyen Quoc

See Remarks

Officer
4,548 -100.0%
28.11
US$127,844 		4,548 -100.0% 28.11 US$127,844
2020-09-23 2020-09-21 S Sale
Naschitz Anat
Non-Executive Director Large shareholder
137,500 -6.9%
28.00
US$3,850,000 		137,500 -6.9% 28.00 US$3,850,000
2020-09-23 2020-09-21 S Sale
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
137,500 -6.9%
28.00
US$3,850,000 		137,500 -6.9% 28.00 US$3,850,000
2020-09-23 2020-09-21 S Sale
Naschitz Anat
Non-Executive Director Large shareholder
137,500 -6.9%
28.00
US$3,850,000 		137,500 -6.9% 28.00 US$3,850,000
2020-09-23 2020-09-21 S Sale
2.6
ORBIMED ADVISORS LLC
Non-Executive Director Large shareholder
137,500 -6.9%
28.00
US$3,850,000 		137,500 -6.9% 28.00 US$3,850,000
2020-09-21 2020-09-17 B Purchase
3.0
RA CAPITAL MANAGEMENT, L.P.
Non-Executive Director Large shareholder
1,300,000 +37.8%
28.00
US$36,400,000 		1,300,000 +37.8% 28.00 US$36,400,000
2020-07-14 2020-07-10 B Purchase
2.9
Longitude Capital Partners III, LLC
Large shareholder
109,090 +4.4%
27.50
US$2,999,975 		109,090 +4.4% 27.50 US$2,999,975
2020-07-14 2020-07-10 B Purchase
3.3
Grunberg Gregory
Non-Executive Director Large shareholder
109,090 +4.4%
27.50
US$2,999,975 		109,090 +4.4% 27.50 US$2,999,975
2020-07-10 2020-07-08 B Purchase
3.0
RA CAPITAL MANAGEMENT, L.P.
Non-Executive Director Large shareholder
275,000 +8.7%
27.50
US$7,562,500 		275,000 +8.7% 27.50 US$7,562,500
2019-11-13 2019-11-11 B Purchase Kariv Tomer Non-Executive Director Large shareholder
250,000 +inf%
16.00
US$4,000,000 		250,000 +inf% 16.00 US$4,000,000
2019-11-13 2019-11-11 B Purchase Longitude Capital Partners III, LLC Large shareholder
575,000 +inf%
16.00
US$9,200,000 		575,000 +inf% 16.00 US$9,200,000
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Insider trading in North America