Gossamer Bio (GOSS) Annual Balance Sheet

Balance Sheet Summary

Gossamer Bio (GOSS) annual balance sheet covering fiscal 2020 through 2025, as reported to the SEC.

Gossamer Bio had total assets of $172.25M and total liabilities of $295.01M as of December 31, 2025. That leaves shareholders' equity of -$122.76M.
Total assets were down 45.4% from $315.29M in fiscal 2024.
Total current assets of $167.64M were 2.6 times total current liabilities of $63.44M.
Cash and cash equivalents were $37.73M, down 18.1% from $46.07M. That is 21.9% of total assets.
Gossamer Bio has an accumulated deficit of $1.44B.

Total assets have shrunk 20.4% a year on average since fiscal 2020, from $539.43M to $172.25M.

A balance sheet shows what a company owns and what it owes on a single date. The difference between the two belongs to shareholders.

Figures in USD thousands

						Dec'25	Dec'24	Dec'23	Dec'22	Dec'21	Dec'20
ASSETS
Current assets
Cash and cash equivalents
37,732	46,074	32,109	111,973	183,403	486,055	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Cash and cash equivalents						37,732	46,074	32,109	111,973	183,403	486,055	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Marketable securities
99,200	248,444	264,316	143,705	141,815	26,573	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Marketable securities						99,200	248,444	264,316	143,705	141,815	26,573	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Receivable from contracts with collaborators
12,227	5,338	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Receivable from contracts with collaborators						12,227	5,338	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Restricted cash
-	-	-	-	64	565	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Restricted cash						-	-	-	-	64	565	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Prepaid expenses and other current assets
18,485	10,032	10,094	6,202	6,498	9,129	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Prepaid expenses and other current assets						18,485	10,032	10,094	6,202	6,498	9,129	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total current assets
167,644	309,888	306,519	261,880	331,780	522,322	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total current assets						167,644	309,888	306,519	261,880	331,780	522,322	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Property and equipment, net
64	10	1,648	3,981	5,320	5,534	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Property and equipment, net						64	10	1,648	3,981	5,320	5,534	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Operating lease right-of-use assets
4,133	5,111	3,131	5,909	5,477	10,550	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Operating lease right-of-use assets						4,133	5,111	3,131	5,909	5,477	10,550	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Other assets
408	283	618	680	1,080	1,027	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Other assets						408	283	618	680	1,080	1,027	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total assets
172,249	315,292	311,916	272,450	343,657	539,433	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total assets						172,249	315,292	311,916	272,450	343,657	539,433	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Current liabilities
Accounts payable
5,959	2,319	5,526	1,459	3,244	7,508	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Accounts payable						5,959	2,319	5,526	1,459	3,244	7,508	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Accrued research and development expenses
21,662	10,455	7,779	15,626	16,205	10,431	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Accrued research and development expenses						21,662	10,455	7,779	15,626	16,205	10,431	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Current portion of long-term debt
-	-	11,613	11,613	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Current portion of long-term debt						-	-	11,613	11,613	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Current contract liabilities
19,987	17,050	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Current contract liabilities						19,987	17,050	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Current convertible senior notes
-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Current convertible senior notes						-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Warrant liability at fair value
-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Warrant liability at fair value						-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Embedded derivative liability at fair value
-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Embedded derivative liability at fair value						-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Accrued expenses and other current liabilities
15,827	15,186	26,680	20,532	20,410	20,711	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Accrued expenses and other current liabilities						15,827	15,186	26,680	20,532	20,410	20,711	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total current liabilities
63,435	45,010	51,598	49,230	39,859	38,650	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total current liabilities						63,435	45,010	51,598	49,230	39,859	38,650	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Long-term convertible senior notes
198,508	197,523	196,591	195,709	150,038	143,642	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Long-term convertible senior notes						198,508	197,523	196,591	195,709	150,038	143,642	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Long-term debt
-	-	814	11,988	29,079	28,744	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Long-term debt						-	-	814	11,988	29,079	28,744	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Operating lease liabilities - long-term
3,460	4,398	144	3,446	3,218	7,713	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Operating lease liabilities - long-term						3,460	4,398	144	3,446	3,218	7,713	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Long-term contract liabilities
29,606	38,869	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Long-term contract liabilities						29,606	38,869	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Accrued expenses - long-term
-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Accrued expenses - long-term						-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total liabilities
295,009	285,800	249,147	260,373	222,194	218,749	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total liabilities						295,009	285,800	249,147	260,373	222,194	218,749	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Stockholders' equity (deficit)
Common stock, $0.0001 par value; 700,000,000 shares authorized as of June 30, 2026 and December 31, 2025; 488,846,723 shares issued and outstanding as of June 30, 2026, and 233,677,057 shares issued and outstanding as of December 31, 2025
24	23	23	10	8	8	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Common stock, $0.0001 par value; 700,000,000 shares authorized as of June 30, 2026 and December 31, 2025; 488,846,723 shares issued and outstanding as of June 30, 2026, and 233,677,057 shares issued and outstanding as of December 31, 2025						24	23	23	10	8	8	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Additional paid-in capital
1,321,303	1,296,848	1,275,136	1,044,864	932,944	897,607	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Additional paid-in capital						1,321,303	1,296,848	1,275,136	1,044,864	932,944	897,607	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Accumulated deficit
-1,438,938	-1,268,568	-1,212,040	-1,032,200	-811,500	-577,500	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Accumulated deficit						-1,438,938	-1,268,568	-1,212,040	-1,032,200	-811,500	-577,500	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Accumulated other comprehensive loss
-5,149	1,189	-350	-574	45	599	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Accumulated other comprehensive loss						-5,149	1,189	-350	-574	45	599	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total stockholders' deficit
-122,760	29,492	62,769	12,077	121,463	320,684	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total stockholders' deficit						-122,760	29,492	62,769	12,077	121,463	320,684	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total liabilities and stockholders' deficit
172,249	315,292	311,916	272,450	343,657	539,433	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Total liabilities and stockholders' deficit						172,249	315,292	311,916	272,450	343,657	539,433	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Series Seed Convertible Preferred Stock
Convertible preferred stock, shares issued, outstanding, and liquidation preference
-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Convertible preferred stock, shares issued, outstanding, and liquidation preference						-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Series A Convertible Preferred Stock
Convertible preferred stock, shares issued, outstanding, and liquidation preference
-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Convertible preferred stock, shares issued, outstanding, and liquidation preference						-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Series B Convertible Preferred Stock
Convertible preferred stock, shares issued, outstanding, and liquidation preference
-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx
Convertible preferred stock, shares issued, outstanding, and liquidation preference						-	-	-	-	-	-	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx	xxxxx