Pharmaceutical Preparations · SIC 2834

Altimmune, Inc.

ALT

Watch

Latest revenue

$5.0K

as of 2025-09-30

Latest net income

$-19.0M

as of 2025-09-30

Net margin

-380280.0%

as of 2025-09-30

Price · 5Y

-25.6% / yr 39.4 pts / yr vs S&P 500 77.1% total
Compare:

Live market

delayed ≤15 min
$2.90
1.02%
Market cap
$564.0M
Enterprise value
$564.0M
P/E (trailing)
Forward P/E
P/B
Dividend yield
0.0%
52-wk high
$7.73
52-wk low
$2.56
Beta
Shares out
194.5M

5-year trend

About ALT

Business description and risk factors will appear here once ALT's latest filing is fully ingested.

Profitability

Operating margin

-230461.0%

55.3%

Net margin

-214861.0%

54.8%

Return on equity

-39.2%

49.1%

Return on assets

-31.5%

53.9%

Leverage

Debt / equity

0.24×

91.3%

Long-term debt / equity

0.15×

516.7%

Debt / assets

19.7%

73.4%

Earnings tracker

QuarterRevenueYoYNet incomeYoYNet margin

Q1 2026

2026-03-31

$-22.6M-15.3%

Q4 2025

2025-12-31

$26.0K+420.0%$-27.4M-18.0%-105223.1%

Q3 2025

2025-09-30

$5.0K0.0%$-19.0M+16.8%-380280.0%

Q2 2025

2025-06-30

$5.0K0.0%$-22.1M+10.1%-442920.0%

Q1 2025

2025-03-31

$5.0K0.0%$-19.6M+19.8%-391500.0%

Q4 2024

2024-12-31

$5.0K$-23.2M-463600.0%

Q3 2024

2024-09-30

$5.0K-98.6%$-22.8M-10.5%-456900.0%

Q2 2024

2024-06-30

$5.0K-16.7%$-24.6M-53.4%-492800.0%

Year-over-year change vs the same fiscal quarter one year prior. Revenue + net income sourced from SEC 10-Q / 10-K filings — no analyst-consensus dependency.

Industry trend

Pharmaceutical Preparations · SIC 2834

No data yet for industry average

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Insider activity

Insider buying

$325.8K

Insider selling

$0

Net activity

+$325.8K

Distinct insiders

6

Open-market trades over the last 365 days.

Recent transactions

DateInsiderTypeSharesPriceValue
2026-04-06

John Gill

Director

Purchase9,200$3.41$31.3K
2026-04-01

Gregory L Weaver

Chief Financial Officer

Purchase10,000$3.15$31.5K
2026-04-01

Jerome Benedict Durso

President and CEO

Purchase15,000$3.14$47.1K
2026-03-06

Gregory L Weaver

Chief Financial Officer

Purchase5,000$3.54$17.7K
2026-03-06

Jerome Benedict Durso

President and CEO

Purchase20,000$3.54$70.8K
2026-01-08

Wayne Pisano

Director

Purchase5,000$4.08$20.4K
2026-01-05

Catherine A. Sohn

Director

Purchase500$4.24$2.1K

Source: SEC Form 4 filings. Officers, directors, and 10%+ owners must disclose share transactions within two business days. RSU grants and tax-withholding rows are excluded by default — compensation activity is not a trading signal.

Who owns ALT

Institutional value

$103.2M

Total shares held

33.8M

Distinct holders

92

-89 vs prior

As of

2026-03-31

Prior: 2025-12-31

Filers with $100M+ AUM disclose holdings 45 days after quarter end.

Top institutional holders

#ManagerSharesValueQoQ changeAction
1BlackRock, Inc.12.8M$39.4M+3.1M (+31.9%)Added
2VANGUARD CAPITAL MANAGEMENT LLC5.7M$17.4MNew
3VANGUARD PORTFOLIO MANAGEMENT LLC5.4M$16.6MNew
4Nuveen, LLC2.3M$7.2M+1.1M (+87.6%)Added
5DIMENSIONAL FUND ADVISORS LP1.0M$3.2M+762.2K (+268.7%)Added
6UBS Group AG904.8K$2.8M+262.7K (+40.9%)Added
7VANGUARD FIDUCIARY TRUST CO869.3K$2.7MNew
8BNP PARIBAS FINANCIAL MARKETS435.1K$1.3M+257.8K (+145.4%)Added
9Bank of New York Mellon Corp413.5K$1.3M+59.3K (+16.7%)Added
10Beirne Wealth Consulting Services, LLC411.9K$1.3M+35.4K (+9.4%)Added
11Steward Partners Investment Advisory, LLC251.8K$775.5K+6.4K (+2.6%)Added
12BROWN WEALTH MANAGEMENT, LLC236.1K$727.3K-22.5K (-8.7%)Trimmed
13Invesco Ltd.227.9K$701.8K+13.0K (+6.1%)Added
14COMMONWEALTH EQUITY SERVICES, LLC160.4K$493.9K-21.1K (-11.6%)Trimmed
15RHUMBLINE ADVISERS155.7K$479.5K+34.2K (+28.1%)Added
16HSBC HOLDINGS PLC154.4K$476.2K-110.1K (-41.6%)Trimmed
17STIFEL FINANCIAL CORP134.6K$414.6K+11.2K (+9.1%)Added
18WEALTH EFFECTS LLC131.9K$406.4K+20.2K (+18.1%)Added
19DEUTSCHE BANK AG\124.5K$383.5K+44.6K (+55.8%)Added
20JPMORGAN CHASE & CO127.5K$367.2K+23.0K (+22.0%)Added

Source: SEC Form 13F-HR. Positions aggregated across sub-managers within each firm. Options (puts/calls) excluded — common stock only.

Top questions investors are asking

Coming once ALT's latest filing finishes processing.