Ryan Martins 89bio, Inc. (ETNB) insider trading activity

Ryan Martins is Chief Financial Officer of 89bio, Inc.. Currently has a direct ownership of 0 shares of ETNB, which is worth approximately $0. The most recent transaction as insider was on Oct 30, 2025, when has been sold 374,295 shares (Common Stock) at a price of $0.0 per share, resulting in proceeds of $0. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 0

100.0% 3M change

100.0% 12M change

Total Value Held $0

Ryan Martins Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Oct 30 2025	SELL Disposition due to a tender of shares in a change of control transaction	-	374,295 Reduced 100.0%	0 Common Stock
Oct 30 2025	BUY Grant, award, or other acquisition	-	35,000 Added 8.55%	374,295 Common Stock
Oct 22 2025	BUY Exercise of conversion of derivative security	$305,420 $3.78 p/Share	80,799 Added 19.23%	339,295 Common Stock
Aug 01 2025	SELL Payment of exercise price or tax liability	$70,348 $9.16 p/Share	7,680 Reduced 2.94%	253,496 Common Stock
Jun 12 2025	SELL Payment of exercise price or tax liability	$81,750 $9.62 p/Share	8,498 Reduced 3.15%	261,176 Common Stock
Feb 17 2025	SELL Payment of exercise price or tax liability	$8,244 $10.57 p/Share	780 Reduced 0.29%	269,674 Common Stock
Feb 09 2025	SELL Payment of exercise price or tax liability	$43,677 $11.41 p/Share	3,828 Reduced 1.4%	270,454 Common Stock

Feb 01 2025	SELL Payment of exercise price or tax liability	$32,044 $9.6 p/Share	3,338 Reduced 1.2%	274,282 Common Stock
Feb 01 2025	BUY Grant, award, or other acquisition	-	80,000 Added 22.37%	277,620 Common Stock
Dec 12 2024	SELL Grant, award, or other acquisition	-	95,000 Reduced 32.47%	197,620 Common Stock
Sep 09 2024	SELL Payment of exercise price or tax liability	$27,173 $8.46 p/Share	3,212 Reduced 3.03%	102,620 Common Stock
Aug 17 2024	SELL Payment of exercise price or tax liability	$6,247 $8.04 p/Share	777 Reduced 0.73%	105,832 Common Stock
Feb 17 2024	SELL Payment of exercise price or tax liability	$7,577 $9.74 p/Share	778 Reduced 0.72%	106,609 Common Stock
Feb 09 2024	SELL Payment of exercise price or tax liability	$30,149 $8.45 p/Share	3,568 Reduced 3.22%	107,387 Common Stock
Feb 05 2024	SELL Payment of exercise price or tax liability	$8,741 $9.8 p/Share	892 Reduced 0.8%	110,955 Common Stock
Feb 01 2024	BUY Grant, award, or other acquisition	-	48,750 Added 30.36%	111,847 Common Stock
Jan 05 2024	SELL Payment of exercise price or tax liability	$70,609 $11.53 p/Share	6,124 Reduced 8.85%	63,097 Common Stock
Jan 05 2024	BUY Grant, award, or other acquisition	-	15,000 Added 17.81%	69,221 Common Stock
Sep 09 2023	SELL Payment of exercise price or tax liability	$34,449 $16.61 p/Share	2,074 Reduced 3.68%	54,221 Common Stock
Aug 17 2023	SELL Payment of exercise price or tax liability	$11,641 $15.46 p/Share	753 Reduced 1.32%	56,295 Common Stock
Aug 01 2023	SELL Payment of exercise price or tax liability	$5,411 $15.64 p/Share	346 Reduced 0.6%	57,048 Common Stock
Jun 30 2023	SELL Payment of exercise price or tax liability	$38,241 $18.95 p/Share	2,018 Reduced 3.4%	57,394 Common Stock
Jun 30 2023	BUY Grant, award, or other acquisition	-	5,834 Added 8.94%	59,412 Common Stock
Apr 04 2023	SELL Open market or private sale	$130,378 $14.95 p/Share	8,721 Reduced 14.0%	53,578 Common Stock
Mar 31 2023	SELL Payment of exercise price or tax liability	$70,240 $15.23 p/Share	4,612 Reduced 6.89%	62,299 Common Stock

Ryan Martins

Chief Financial Officer

San Francisco, CA

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