Altimmune, Inc.

ALT Healthcare Biotechnology

Altimmune, Inc.’s revenue for fiscal 2025 (year ended December 2025) was $41,000.00, up 105.0% from fiscal 2024. In the quarter to June 2026, revenue grew 520.0%, EPS grew 55.6%, free cash flow fell 25.3% and total debt rose 142.4%, each against the same quarter a year earlier. Insiders bought in the last twelve months.

2.49 0.07 −2.73%
Market cap
$498.0M
P/E
0.0×
Fwd P/E
−3.9×
Dividend yield
—
F-score
4/9
Altman Z
0.23
Beneish M
−3.17
Dividend safety
n/a

Insider Decisions trades per month

Total buys 0.37
Totals in millions of $.
Dec 25 Mar 26 Jun 26 Sep 26
Buy — 3 2 — 2 3 — — — 1 — —
Sell — — — — — — — — — — — —
Insider Ownership 0.97%

Capital & Financial Ratios $m

Market Cap 497.96
Revenue 0.05
Net Income (91.76)
Free Cash Flow (76.56)
Net Debt (291.58)
Current Ratio 26.78 (at or above 1.5: strong)
Debt/Equity 0.07 (at or below 0.5: strong)
P/E ratio 0.00
Fwd P/E (3.93) (negative: loss-making)
P/S ratio 10,320.35 (above 10: high)
P/B ratio 1.00
Past 5Y EPS Growth —
This Y EPS Growth 41.80% (at or above 15%: strong)
Next Y EPS Growth (9.21%) (below 0%: weak)
Next Y revenue growth 6,148.78% (at or above 10%: strong)
Next 5Y EPS Growth 14.25%

Green and red mark values outside typical ranges. How we judge →

Valuation vs history

P/S against its own 10 years 85.77%
10-year low 10-year high
P/B against its own 10 years 41.97%
10-year low 10-year high
EV/Sales against its own 10 years 78.30%
10-year low 10-year high

Dividends

Payout Ratio —
Annual Dividend Rate —
Annual Dividend Yield —
total individual payouts
2023 Powerpack
2022 Powerpack
2021 Powerpack
2020 Powerpack
2019 Powerpack
2018 Powerpack
2017 2.91
2.91
2016 Powerpack
special payouts not included in total or ratios

Assets vs Liabilities $m

2023 2024 2025 Q'26
Cash 198 132 273 326
Receivables 5 3 2 3
Inventory — — — —
Other — — — —
210 137 278 335
2023 2024 2025 Q'26
Payables 2 0 3 1
ST’ Debt — — — —
Other — — — —
12 10 15 13

Compound Annual Growth %

10y 5y 3y
Sales (42.64%) (65.33%) 0.00%
Cash Flow 0.00% 0.00% 0.00%
Earnings 0.00% 0.00% 0.00%
Book Value 29.74% (0.09%) 6.67%

Revenue $m

Mar Jun Sep Dec Year
’26 — — — — —
’25 0 0 0 0 0
’24 0 0 0 0 0
’23 0 0 0 0 0
’22 0 0 0 0 0
’21 1 0 0 3 4
’20 2 1 3 2 8
Fiscal quarters ending in the months shown.

Operating Cash Flow $m

Mar Jun Sep Dec Year
’26 (21) (24) — — —
’25 (17) (19) (12) (19) (68)
’24 (16) (18) (27) (18) (80)
’23 (19) (19) (20) (17) (76)
’22 (14) (17) (15) (17) (63)
’21 (20) (19) (18) (22) (78)
’20 (4) (7) (10) (13) (34)
Fiscal quarters ending in the months shown.

Free Cash Flow $m

Mar Jun Sep Dec Year
’26 (21) (24) — — —
’25 (17) (19) (12) (19) (68)
’24 (16) (18) (27) (18) (80)
’23 (19) (19) (20) (17) (76)
’22 (14) (17) (15) (17) (63)
’21 (24) (27) (18) (22) (91)
’20 (4) (7) (10) (13) (35)
Fiscal quarters ending in the months shown.

EPS $

Mar Jun Sep Dec Year
’26 (0.18) (0.12) — — —
’25 (0.26) (0.27) (0.21) (0.27) (1.00)
’24 (0.34) (0.35) (0.32) (0.33) (1.34)
’23 (0.40) (0.32) (0.39) (0.54) (1.66)
’22 (0.44) (0.42) (0.48) (0.43) (1.81)
’21 (0.38) (0.60) (0.81) (0.57) (2.35)
’20 (0.26) (0.94) (0.54) (0.17) (1.91)
Fiscal quarters ending in the months shown.

Target Price Range

Analyst price targets

Recommendation Rating

1.3
1Buy 2 3Hold 4 5Sell

Ten years at a glance Fiscal years to December

Group Line 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Trend 2026e 2027e 2028e
Price, $
Price, $ Low — 45.30 1.70 1.51 1.60 8.10 3.83 2.09 5.28 2.90

Analyst estimates 2026–2028

Powerpack
High — 137.70 66.00 5.94 35.10 24.61 23.49 17.17 14.84 7.83
People
People Employees 13 30 27 25 43 47 52 59 59 57
Revenue/emp, $m 0.25 0.36 0.38 0.23 0.19 0.09 0.00 0.01 0.00 0.00
Income, $m
Income, $m Revenue 3 11 10 6 8 4 0 0 0 0
Gross margin, % 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00
EBT (11) (52) (45) (21) (54) (97) (85) (88) (95) (89)
EBT margin, % (342.59) (484.84) (438.68) (354.72) (665.38) (2,201.59) 124,867.65 (20,762.21) (475,295.00) (216,521.95)
Net income (11) (46) (39) (21) (49) (97) (85) (88) (95) (88)
Depreciation 0 36 25 0 0 1 0 10 (4) (2)
Per share, $
Per share, $ Revenue 14.06 24.86 3.69 0.44 0.32 0.11 0.00 0.01 0.00 0.00
Earnings (48.17) (120.42) (15.16) (1.60) (1.91) (2.35) (1.81) (1.66) (1.34) (1.00)
Cash flow (27.60) (46.80) (3.35) (0.73) (1.34) (1.90) (1.33) (1.42) (1.12) (0.77)
Capex (0.96) (0.37) (0.36) 0.00 (0.01) (0.30) 0.00 0.00 0.00 0.00
Free cash flow (28.56) (47.17) (3.71) (0.73) (1.35) (2.19) (1.34) (1.42) (1.12) (0.77)
Book value 139.91 91.22 17.24 3.47 8.81 4.82 3.95 3.65 1.74 2.55
Shares, m 0 0 3 13 26 41 47 53 71 88
Valuation, ×
Valuation, × P/E 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
P/S 0.00 2.41 0.56 4.28 35.33 85.75 0.00 1,314.92 25,596.73 6,914.26
P/B 0.00 0.66 0.12 0.55 1.28 1.90 3.96 2.89 4.15 1.41
EV/Sales (0.81) 1.32 (2.69) (1.86) 9.15 42.88 (8,079.20) 851.59 19,023.93 1,717.80
EV/FCF 0.40 (0.70) 2.68 1.12 (2.16) (2.09) (8.73) (4.77) (4.75) (1.17)
Cash, $m
Cash, $m Operating cash flow (6) (20) (9) (10) (34) (78) (63) (76) (80) (68)
Capex 0 0 (1) 0 0 (12) 0 0 — 0
Free cash flow (7) (20) (10) (10) (35) (91) (63) (76) (80) (68)
Balance, $m
Balance, $m Working capital (1) 20 35 35 218 186 176 197 127 263
Total debt 0 0 1 1 1 1 1 — — 34
Net debt (3) (12) (34) (36) (214) (189) (184) (198) (132) (239)
Shareholders’ equity 32 39 48 46 226 199 185 194 124 225
Returns, %
Returns, % ROA (39.32) (101.26) (72.13) (38.55) (32.79) (41.85) (39.79) (42.36) (54.33) (42.03)
ROIC (23.62) (120.07) (185.13) (131.45) (300.78) (610.37) (5,217.65) 0.00 0.00 0.00
ROE (46.90) (143.46) (96.86) (44.70) (36.14) (45.69) (44.07) (46.63) (59.86) (50.57)
Negative figures in brackets.

All 10 years →

Fiscal years to Dec 2025 · latest quarter Dec 2025

Charts ten years each

Altimmune, Inc. vs peers in Biotechnology (Q) = latest quarter vs a year earlier

Company Market cap P/E Fwd P/E Revenue growth (Q) EPS growth (Q) FCF growth (Q) Gross margin (Q) EBIT margin (Q) Compare
PROK ProKidney Corp. $526.0M — (loss-making) — (loss-making) −32.13% (below 0%: shrinking) n/m −28.03% (below 0%: shrinking) 100.00% (32,248.67%) Compare
CYVNY Ceryvyn Therapeutics Ltd. - Unsponsored ADR $524.8M — (loss-making) — (loss-making) −7.53% (below 0%: shrinking) n/m −31.52% (below 0%: shrinking) 0.00% 0.00% Compare
OCS Oculis Holding AG $514.9M — (loss-making) — (loss-making) +23.96% (above 0%: growing) n/m −10.40% (below 0%: shrinking) 100.00% (7,603.42%) Compare
ALT Altimmune, Inc. $507.7M — (loss-making) — (loss-making) +520.00% (above 0%: growing) n/m −25.27% (below 0%: shrinking) 100.00% 0.00%
ALLO Allogene Therapeutics, Inc. $504.4M — (loss-making) — (loss-making) +20,990.91% (above 0%: growing) n/m +17.73% (above 0%: growing) 100.00% (1,011.21%) Compare
CTNM Contineum Therapeutics, Inc. $503.4M — (loss-making) — — n/m +26.73% (above 0%: growing) 100.00% 0.00% Compare
ARVN Arvinas, Inc. $499.6M 57.3× — (loss-making) +1,014.73% (above 0%: growing) n/m +49.79% (above 0%: growing) 96.40% 65.72% Compare
EPRX Eupraxia Pharmaceuticals Inc. $491.7M — (loss-making) — — n/m −56.41% (below 0%: shrinking) — 0.00% Compare
MPLT MapLight Therapeutics, Inc. $490.7M — (loss-making) — — n/m −31.91% (below 0%: shrinking) — 0.00% Compare
Median of peers $503.9M — — +23.96% — −19.21% 100.00% 0.00%

All 614 Biotechnology stocks →

Altimmune, Inc. (ALT) key facts

  • Strength: Altimmune, Inc.’s revenue for fiscal 2025 (year ended December 2025) was $41,000.00, up 105.0% from fiscal 2024.
  • Altimmune, Inc. (ALT) is a Biotechnology company in the Healthcare sector, listed on Nasdaq.
  • As of October 12, 2026, ALT traded at $2.56, a market capitalization of $498.0 million.
  • Return on equity was −50.6% and debt-to-equity 0.07.
  • Its Piotroski F-score is 4 out of 9 and its Altman Z-score is 0.23 (distress zone) for fiscal 2025.

Source: company filings (standardised) and stockrow calculations.

Altimmune, Inc. (ALT) Latest News

stockrow.com/ALT · Data as of Dec 31, 2025 · For information only; not investment advice. · © 2026 stockrow.com