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Altimmune, Inc. (ALT) Annual Reports

Q: Where can I read Altimmune, Inc. (ALT) annual reports?

Every year on this page links straight to the full text on SEC EDGAR. US annual reports are web pages (HTML) rather than PDFs, so you can read and search them in the browser. 3 filings are currently indexed.

Q: What is the difference between a 10-K and a 20-F?

A 10-K is the annual report of a US domestic issuer; a 20-F is filed by foreign private issuers (Taiwanese companies with US ADRs, such as TSMC, file 20-F). A 40-F applies to Canadian issuers under the MJDS.

Altimmune, Inc. is listed on Nasdaq, classified by the SEC under Pharmaceutical Preparations (SIC 2834). This page indexes 3 annual reports, each linking to the full text on the SEC's EDGAR system.

Company profile

Exchange： Nasdaq
Fiscal year end： 12/31
SEC CIK： 1326190 →

Website：Official site ↗

Financial Highlights

FY2026 Q2 (quarterly, ended 2026-06-30)
	Current	Prior year	YoY
Operating income	$-26.2M	$-22.9M	-14.4%
Net income	$-22.8M	$-22.1M	-3.1%
EPS (diluted)	$-0.12	$-0.27	+55.6%

Source: SEC EDGAR (XBRL company facts)

Financial history

Revenue & profit

Quarterly · In mn (USD)

Revenue 0.03 mn Net income -22.8 mn

Show table：Income statement

Item	2010Q2	2010Q3	2010Q4	2011Q1	2011Q2	2011Q3	2011Q4	2012Q1	2012Q2	2012Q3	2012Q4	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
Revenue	—	—	21.0	—	—	—	24.3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.75	0.9	1.08	0.3	3.04	4.59	2.81	2.69	2.42	2.63	2.59	2.96	1.63	0.64	0.58	2.21	0.72	2.94	2.31	0.84	0.14	0.16	3.28	0.03	0.01	0	-0.11	0.02	0.01	0.36	0.04	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.03	—	—
Operating income	-5.54	-3.36	-7.25	-4.54	-3.08	-3.02	-1.08	-1.59	-1.46	-1.79	-1.43	-1.09	-1.48	-3.20	-5.07	-2.40	-1.17	-4.00	-2.62	1.16	-1.96	-1.66	-0.94	-1.25	-0.51	-3.99	-5.51	-3.18	-4.01	-30.9	-12.6	-5.99	-5.44	-4.06	-27.4	-2.33	-3.55	-11.3	-4.31	-7.31	-18.4	-18.3	-10.8	-14.9	-24.9	-33.2	-24.0	-19.5	-20.4	-24.8	-23.1	-21.8	-18.0	-22.5	-33.6	-26.8	-26.7	-24.8	-24.9	-21.8	-22.9	-20.9	-28.9	-24.2	-26.2
Net income	-6.39	-4.33	-16.2	-2.08	-2.44	-0.03	0.75	-2.68	-0.76	-0.21	-1.27	-2.11	-1.24	-3.95	-4.42	-2.26	-0.44	-4.63	-2.63	1.46	-2.34	-1.32	-1.24	-1.23	8.04	109	77.8	-2.20	-3.11	-29.9	-8.83	-3.17	-9.14	-2.35	-24.5	-2.10	-3.39	-10.9	-4.10	-3.89	-16.8	-17.8	-10.6	-14.9	-24.8	-33.5	-23.9	-19.4	-20.1	-23.5	-21.7	-20.1	-16.1	-20.7	-31.6	-24.4	-24.6	-22.8	-23.2	-19.6	-22.1	-19.0	-27.4	-22.6	-22.8

Balance sheet

Quarterly · In mn (USD)

Total assets 527 mn Total liabilities 53.0 mn

Equity = assets − liabilities. Balance-sheet figures are period-end balances, not cumulative.

Show table：Balance sheet

Item	2010Q2	2010Q3	2010Q4	2011Q1	2011Q2	2011Q3	2011Q4	2012Q1	2012Q2	2012Q3	2012Q4	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
Current assets	—	—	23.6	—	22.9	18.3	19.6	21.5	20.7	20.4	19.8	19.1	21.7	17.8	14.3	11.6	12.4	20.6	19.3	22.7	19.9	18.3	17.2	16.1	25.4	138	222	18.3	17.0	26.1	23.5	19.9	11.9	12.0	39.4	49.4	46.1	41.6	39.4	39.6	88.0	218	230	245	239	218	204	191	196	211	193	173	170	153	210	188	171	146	137	155	188	217	278	335	335
Total assets	—	—	27.2	—	26.3	21.6	22.8	24.8	23.8	23.4	22.7	22.0	24.6	20.6	17.1	14.4	15.2	23.4	22.0	25.5	22.6	20.9	19.9	18.7	27.9	141	225	20.7	90.8	74.3	63.0	60.9	52.1	52.9	54.8	65.4	62.0	56.4	54.1	54.2	103	233	245	264	257	237	219	206	210	225	207	187	183	167	211	188	173	148	139	157	190	218	280	336	527
Current liabilities	—	—	6.16	—	5.93	3.69	4.62	5.31	5.66	6.97	7.49	7.79	7.72	5.41	6.80	3.47	2.83	3.88	2.58	4.54	3.34	2.38	2.18	2.64	3.27	3.73	205	2.23	5.53	4.18	3.84	5.16	7.07	8.34	4.53	3.68	3.48	2.47	3.92	6.05	4.92	6.29	12.0	9.82	9.10	19.1	18.3	19.1	13.8	15.7	17.1	14.9	11.4	11.9	12.1	11.3	15.2	8.64	10.5	9.80	9.22	12.6	15.0	11.3	12.5
Total liabilities	—	—	15.0	—	12.2	7.10	6.95	11.0	10.3	10.9	11.1	12.0	11.4	9.27	9.80	6.05	4.36	5.24	3.70	5.44	4.28	3.22	3.21	3.11	3.68	4.16	205	2.68	14.9	17.3	14.3	14.4	15.8	13.2	6.44	6.05	5.75	7.00	8.54	12.3	23.0	33.3	19.2	17.8	16.0	27.6	19.7	20.8	15.4	20.3	21.6	19.4	15.6	16.2	16.5	15.4	20.8	14.5	15.8	15.1	29.0	32.9	55.0	51.6	53.0
Equity	—	—	12.2	—	14.1	14.5	15.8	13.8	13.6	12.6	11.7	9.94	13.2	11.3	7.34	8.33	10.9	18.1	18.3	20.0	18.3	17.7	16.6	15.6	24.3	136	19.5	18.1	76.0	48.8	39.4	40.5	35.8	39.7	48.3	59.3	56.2	49.4	45.5	41.9	79.5	200	226	246	241	209	199	185	195	205	185	168	168	150	194	173	153	133	124	142	161	186	225	284	474

Cash flow

Quarterly · In mn (USD)

Operating -24.2 mn Investing -221 mn Financing 211 mn

Positive = cash in, negative = cash out.

Show table：Cash flow statement

Item	2010Q2	2010Q3	2010Q4	2011Q1	2011Q2	2011Q3	2011Q4	2012Q1	2012Q2	2012Q3	2012Q4	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
Operating	-6.59	-1.56	-6.72	-2.09	-1.30	-3.62	-0.81	0.79	-2.70	1.73	-2.15	0.26	-0.5	-0.68	-6.26	-2.29	-0.53	-2.12	-3.52	-2.71	2.65	-1.33	-1.83	-1.36	8.54	111	82.9	-7.10	-4.05	-4.26	-4.81	-3.56	0.35	-1.02	-5.16	-2.11	-3.06	-2.43	-2.00	-4.35	-7.17	-9.50	-13.4	-19.6	-18.9	-17.8	-22.0	-13.5	-16.7	-15.1	-17.3	-19.4	-19.4	-20.5	-16.5	-16.4	-18.1	-27.1	-18.3	-16.8	-19.4	-11.9	-19.4	-20.9	-24.2
Investing	2.80	0.01	-0.05	—	-0.03	-0.04	1.76	0.07	0	0	0	-0.03	-0.05	-0.01	0	-0.03	-0.04	-0.01	0	-0.03	-0.02	-0.01	-0.02	0	-0.03	-66.8	0	66.8	-53.0	-0.02	-0.03	-0.67	-0.17	-0.15	-0.01	0	-0.01	-28.2	-0.05	6.56	6.10	-47.9	-36.9	19.2	25.1	18.4	24.9	-0.01	-49.0	-25.4	0.98	13.3	3.99	4.40	-7.96	-39.5	-3.70	1.20	13.6	-5.10	101	-149	-79.2	-3.69	-221
Financing	2.11	3.47	15.9	0.01	5.79	-0.05	0.03	3.20	-0.82	1.21	0.12	-0.06	3.46	0.84	0.79	1.38	2.31	10.5	2.55	-0.17	0.04	0.32	0.03	0.02	0.41	1.34	2.03	-198	201	13.0	0	0.02	-3.46	4.41	31.5	12.7	-0.16	-0.06	0.04	0.1	54.5	136	22.7	34.4	18.0	0.12	12.5	3.18	21.6	32.1	-0.04	-0.3	13.1	0.59	72.8	-0.26	-0.05	0.27	10.1	34.1	52.2	39.4	81.1	78.5	211
Cash at period end	0.68	2.72	11.8	9.71	14.2	10.4	11.2	15.3	11.8	14.7	12.7	12.9	15.8	15.9	10.5	9.53	11.3	19.6	18.6	15.7	18.4	17.4	15.6	14.2	23.2	69.1	154	15.8	8.37	17.1	8.77	4.56	4.17	7.96	33.7	44.3	41.7	11.0	8.96	11.3	64.7	144	116	150	174	175	190	180	136	127	111	105	102	86.9	135	79.0	57.1	31.5	36.9	49.1	183	61.2	43.8	97.6	63.0

Profitability

Quarterly · %

Operating margin -111126.9% Net margin -105223.1%

Gross, operating and net margin = the respective profit ÷ revenue.

Show table：Profitability

Item	2010Q2	2010Q3	2010Q4	2011Q1	2011Q2	2011Q3	2011Q4	2012Q1	2012Q2	2012Q3	2012Q4	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
Operating margin	—	—	-34.5%	—	—	—	-4.5%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	-68.1%	-442.8%	-508.4%	-1062.6%	-132.0%	-674.1%	-447.3%	-222.8%	-224.9%	-154.0%	-1056.4%	-78.8%	-218.4%	-1750.6%	-748.9%	-330.2%	-2552.3%	-623.7%	-464.8%	-1774.5%	-18066.3%	-21074.1%	-731.8%	-60934.4%	-254937.5%	-1237600.0%	—	-103614.3%	-300116.7%	-6226.5%	-90873.0%	-535880.0%	-534900.0%	-495340.0%	-497320.0%	-436300.0%	-458440.0%	-417180.0%	-111126.9%	—	—
Net margin	—	—	-77.1%	—	—	—	3.1%	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1078.4%	12123.2%	7175.6%	-733.6%	-102.4%	-651.3%	-314.4%	-117.9%	-378.1%	-89.3%	-946.7%	-71.0%	-208.3%	-1698.7%	-711.5%	-175.6%	-2323.5%	-604.8%	-459.3%	-1774.8%	-18039.7%	-21268.7%	-728.9%	-60718.8%	-251337.5%	-1175800.0%	—	-95590.5%	-267683.3%	-5710.2%	-85516.2%	-487880.0%	-492800.0%	-456900.0%	-463600.0%	-391500.0%	-442920.0%	-380280.0%	-105223.1%	—	—

Returns & leverage

Quarterly · %

ROE -28.9% ROA -25.6% Debt ratio 10.1%

ROE / ROA = trailing four-quarter net income ÷ average equity / total assets (annual mode: the year’s net income ÷ average of opening and closing). Not computed when the denominator is zero or negative.

Show table：Returns & leverage

Item	2010Q2	2010Q3	2010Q4	2011Q1	2011Q2	2011Q3	2011Q4	2012Q1	2012Q2	2012Q3	2012Q4	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
ROE	—	—	—	—	-177.8%	-142.6%	-27.1%	-32.0%	-19.7%	-21.4%	-35.8%	-36.7%	-36.1%	-71.7%	-123.3%	-129.9%	-91.9%	-79.8%	-77.8%	-44.0%	-55.7%	-27.0%	-19.7%	-34.4%	20.0%	149.1%	1073.7%	1145.5%	362.6%	46.0%	-149.7%	-153.7%	-91.3%	-53.1%	-89.3%	-76.3%	-70.3%	-91.9%	-43.7%	-44.1%	-52.6%	-34.1%	-36.1%	-41.6%	-42.5%	-41.0%	-45.7%	-47.1%	-44.5%	-42.0%	-44.1%	-48.4%	-44.9%	-44.1%	-46.6%	-54.5%	-63.3%	-73.0%	-59.9%	-57.3%	-55.9%	-52.6%	-50.6%	-42.8%	-28.9%
ROA	—	—	—	—	-95.1%	-95.8%	-15.2%	-17.8%	-10.9%	-12.9%	-21.6%	-18.6%	-20.0%	-38.9%	-58.8%	-65.3%	-55.6%	-53.5%	-50.9%	-31.3%	-43.0%	-21.8%	-16.4%	-27.7%	16.8%	142.2%	158.5%	977.5%	306.0%	39.6%	-30.6%	-110.3%	-71.4%	-36.9%	-66.5%	-60.4%	-56.7%	-74.9%	-37.7%	-37.3%	-43.4%	-29.4%	-32.8%	-37.7%	-37.8%	-35.7%	-41.9%	-43.3%	-41.5%	-37.6%	-39.8%	-43.5%	-41.4%	-40.0%	-42.4%	-49.4%	-56.8%	-65.8%	-54.3%	-52.2%	-48.3%	-45.8%	-42.0%	-37.0%	-25.6%
Debt ratio	—	—	55.1%	—	46.5%	32.8%	30.5%	44.4%	43.1%	46.4%	48.7%	54.8%	46.2%	44.9%	57.2%	42.1%	28.6%	22.5%	16.9%	21.4%	18.9%	15.4%	16.2%	16.6%	13.2%	3.0%	91.3%	12.9%	16.4%	23.2%	22.8%	23.6%	30.3%	24.9%	11.8%	9.3%	9.3%	12.4%	15.8%	22.8%	22.4%	14.3%	7.8%	6.7%	6.2%	11.7%	9.0%	10.1%	7.3%	9.0%	10.5%	10.3%	8.5%	9.7%	7.8%	8.2%	12.0%	9.8%	11.3%	9.6%	15.2%	15.0%	19.7%	15.4%	10.1%

EPS

Quarterly · US$

EPS US$-0.12

Show table：EPS

Item	2010Q2	2010Q3	2010Q4	2011Q1	2011Q2	2011Q3	2011Q4	2012Q1	2012Q2	2012Q3	2012Q4	2013Q1	2013Q2	2013Q3	2013Q4	2014Q1	2014Q2	2014Q3	2014Q4	2015Q1	2015Q2	2015Q3	2015Q4	2016Q1	2016Q2	2016Q3	2016Q4	2017Q1	2017Q2	2017Q3	2017Q4	2018Q1	2018Q2	2018Q3	2018Q4	2019Q1	2019Q2	2019Q3	2019Q4	2020Q1	2020Q2	2020Q3	2020Q4	2021Q1	2021Q2	2021Q3	2021Q4	2022Q1	2022Q2	2022Q3	2022Q4	2023Q1	2023Q2	2023Q3	2023Q4	2024Q1	2024Q2	2024Q3	2024Q4	2025Q1	2025Q2	2025Q3	2025Q4	2026Q1	2026Q2
EPS（US$）	—	—	—	-0.04	-0.05	0.00	0.02	-0.06	-0.02	0.00	-0.03	-0.04	-0.02	-0.08	-0.08	-0.04	-0.01	-0.08	-0.04	0.02	-0.04	-0.02	-0.02	-0.02	0.12	1.67	1.15	—	—	—	—	—	—	—	—	—	—	—	—	—	—	-0.54	-0.17	-0.38	-0.60	-0.81	-0.56	-0.44	-0.42	-0.48	-0.44	-0.39	-0.32	-0.39	-0.56	-0.34	-0.35	-0.32	-0.33	-0.26	-0.27	-0.21	-0.26	-0.18	-0.12

Revenue & profit

Year-to-date · In mn (USD)

Revenue 0.04 mn Net income -45.4 mn

Year-to-date = summed from the first quarter of the fiscal year; balance-sheet items are period-end balances.

Balance sheet

Year-to-date · In mn (USD)

Total assets 527 mn Total liabilities 53.0 mn

Equity = assets − liabilities. Balance-sheet figures are period-end balances, not cumulative.

Cash flow

Year-to-date · In mn (USD)

Operating -45.2 mn Investing -225 mn Financing 290 mn

Positive = cash in, negative = cash out.

Profitability

Year-to-date · %

Operating margin -230461.0% Net margin -214861.0%

Gross, operating and net margin = the respective profit ÷ revenue.

Returns & leverage

Year-to-date · %

ROE -28.9% ROA -25.6% Debt ratio 10.1%

EPS

Year-to-date · US$

EPS US$-0.30

Revenue & profit

Annual · In mn (USD)

Revenue 0.04 mn Net income -88.1 mn

Annual = sum of four quarters of a complete fiscal year (incomplete years are omitted); balance-sheet items are year-end balances.

Show table：Income statement

Item	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
Revenue	—	—	—	—	—	—	10.7	10.3	5.80	8.19	4.41	-0.07	0.43	0.02	0.04
Operating income	-11.7	-6.27	-10.8	-10.2	-3.40	-11.3	-50.7	-42.8	-21.5	-54.8	-96.9	-87.7	-95.9	-103	-94.5
Net income	-3.80	-4.92	-11.7	-9.96	-3.44	194	-44.0	-39.2	-20.5	-49.0	-97.1	-84.7	-88.5	-95.1	-88.1

Balance sheet

Annual · In mn (USD)

Total assets 280 mn Total liabilities 55.0 mn

Equity = assets − liabilities. Balance-sheet figures are period-end balances, not cumulative.

Show table：Balance sheet

Item	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
Current assets	19.6	19.8	14.3	19.3	17.2	222	23.5	39.4	39.4	230	204	193	210	137	278
Total assets	22.8	22.7	17.1	22.0	19.9	225	63.0	54.8	54.1	245	219	207	211	139	280
Current liabilities	4.62	7.49	6.80	2.58	2.18	205	3.84	4.53	3.92	12.0	18.3	17.1	12.1	10.5	15.0
Total liabilities	6.95	11.1	9.80	3.70	3.21	205	14.3	6.44	8.54	19.2	19.7	21.6	16.5	15.8	55.0
Equity	15.8	11.7	7.34	18.3	16.6	19.5	39.4	48.3	45.5	226	199	185	194	124	225

Cash flow

Annual · In mn (USD)

Operating -67.5 mn Investing -132 mn Financing 207 mn

Positive = cash in, negative = cash out.

Show table：Cash flow statement

Item	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
Operating	-7.81	-2.32	-7.17	-8.47	-3.22	202	-20.2	-9.39	-9.60	-34.4	-78.2	-62.6	-75.8	-79.8	-67.5
Investing	—	0.07	-0.08	-0.08	-0.08	-66.9	13.7	-1.00	-28.3	-72.1	87.5	-73.4	13.7	-28.4	-132
Financing	5.78	3.72	5.03	16.7	0.22	3.80	15.8	32.5	12.5	213	65.1	56.8	86.1	10.0	207
Cash at period end	11.2	12.7	10.5	18.6	15.6	154	8.77	33.7	8.96	116	190	111	135	36.9	43.8

Profitability

Annual · %

Operating margin -230461.0% Net margin -214861.0%

Gross, operating and net margin = the respective profit ÷ revenue.

Show table：Profitability

Item	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
Operating margin	—	—	—	—	—	—	-472.3%	-414.6%	-370.0%	-669.5%	-2197.4%	—	-22518.5%	-515860.0%	-230461.0%
Net margin	—	—	—	—	—	—	-410.2%	-379.2%	-353.7%	-599.2%	-2201.4%	—	-20762.2%	-475295.0%	-214861.0%

Returns & leverage

Annual · %

ROE -50.6% ROA -42.0% Debt ratio 19.7%

Show table：Returns & leverage

Item	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
ROE	-24.0%	-35.8%	-123.3%	-77.8%	-19.7%	1073.7%	-149.7%	-89.3%	-43.7%	-36.1%	-45.7%	-44.1%	-46.6%	-59.9%	-50.6%
ROA	-16.6%	-21.6%	-58.8%	-50.9%	-16.4%	158.5%	-30.6%	-66.5%	-37.7%	-32.8%	-41.9%	-39.8%	-42.4%	-54.3%	-42.0%
Debt ratio	30.5%	48.7%	57.2%	16.9%	16.2%	91.3%	22.8%	11.8%	15.8%	7.8%	9.0%	10.5%	7.8%	11.3%	19.7%

EPS

Annual · US$

EPS US$-1.00

Show table：EPS

Item	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025
EPS（US$）	-0.07	-0.11	-0.22	-0.17	-0.06	2.92	—	—	—	—	-2.35	-1.78	-1.66	-1.34	-1.00

Source: SEC EDGAR (XBRL company facts)

Annual reports by year

	10-K
2025	Open full text →
2024	Open full text →
2023	Open full text →

10-K: annual report of a US domestic issuer. Filings are the original documents hosted on SEC EDGAR — this site neither mirrors nor edits them.

FAQ

Where can I read Altimmune, Inc. (ALT) annual reports?

Every year in the table above links straight to the full text on SEC EDGAR. US annual reports are web pages (HTML) rather than PDFs, so you can read and search them in the browser without downloading anything. 3 filings are currently indexed.

What is the difference between a 10-K and a 20-F?

A 10-K is the annual report of a US domestic issuer, with sections fixed by law: Item 1 Business, Item 1A Risk Factors, Item 7 Management's Discussion and Analysis. A 20-F is filed by foreign private issuers — Taiwanese companies with US ADRs, such as TSMC, file 20-F rather than 10-K. A 40-F applies to Canadian issuers under the MJDS.

Are earnings call materials available here?

No. Earnings calls are not SEC filings, so US pages on this site cover annual reports only. Taiwan has a mandatory investor-conference disclosure regime, and those materials are indexed under Annual Reports.

Source: US Securities and Exchange Commission (SEC) EDGAR. This site indexes public filings and links to them; it hosts no copies, offers no investment advice, and makes no warranty as to timeliness or completeness.
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