Equity · Healthcare
ALT
NASDAQAltimmune (ALT)
The line runs 2.92 USD on 12 August through 2.12 USD on 9 November, on a scale from 1.5 to 3.5. Days the market did not trade hold the previous close, flat.
- Market cap
- 411.4M USD
- Revenue, year to Dec 2025
- 41K USD
- EPS, diluted, year to Dec 2025
- −1.00 USD
- 52-week range
- 1.97 USD – 6 USD
- Avg volume
- 183.5K
- Mentions, 30 days
- 6
- Net sentiment
- +0.11
as of Nov 9, 2026
Have Altimmune (ALT) insiders bought or sold shares recently?
In the 90 days to 10 Nov 2026, Altimmune insiders reported 1 open-market purchase and no sales (SEC Form 4).
Form 4, 90 days to 10 Nov 2026, newest reported trade 13 Aug 2026
| Reported | Insider | Type | Shares | Value |
|---|---|---|---|---|
| 13 Aug 2026 | Durso Jerome BenedictPresident and CEO | Buy | 15,000 | 44K USD |
6 other filings in the window: grants, exercises, tax withholding and transfers, not trades
| Reported | Insider | Type | Shares | Value |
|---|---|---|---|---|
| 01 Oct 2026 | WEAVER GREGORY LChief Financial Officer | Option exercise | 14,475 | |
| 01 Oct 2026 | WEAVER GREGORY LChief Financial Officer | Tax withheld | 4,379 | 12K USD |
| 01 Oct 2026 | Arbet-Engels ChristopheChief Medical Officer | Option exercise | 37,500 | |
| 01 Oct 2026 | Arbet-Engels ChristopheChief Medical Officer | Tax withheld | 12,679 | 35K USD |
| 16 Sep 2026 | Richardson Linda MChief Commercial Officer | Option exercise | 24,000 | |
| 16 Sep 2026 | Richardson Linda MChief Commercial Officer | Tax withheld | 6,826 | 22K USD |
Which funds hold Altimmune (ALT)?
10 of the 45 institutional funds we track reported a Altimmune position for the quarter ended 30 Jun 2026 — a combined 68.0M USD; the latest of those filings landed 02 Sep 2026.
| Fund | Position | Shares | Value | Shares q/q |
|---|---|---|---|---|
| Marshall Wace | Added | 6,841,055 | 20.8M USD | +70.3% |
| Viking Global Investors | New position | 6,700,000 | 20.4M USD | |
| Millennium Management | Held (±25%) | 3,309,122 | 10.1M USD | +1.6% |
| Two Sigma Investments | Held (±25%) | 2,381,142 | 7.2M USD | −3.9% |
| AQR Capital Management | Added | 1,220,949 | 3.7M USD | +1,328.8% |
| Citadel Advisors | Added | 983,559 | 3.0M USD | +119.1% |
| Point72 Asset Management | Trimmed | 486,884 | 1.5M USD | −26.8% |
| D. E. Shaw & Co. | Trimmed | 201,638 | 613K USD | −72.3% |
| Man Group | Added | 173,872 | 529K USD | +33.9% |
| Renaissance Technologies | New position | 71,600 | 218K USD |
What has been filed or recorded for Altimmune (ALT)?
The filings we hold for Altimmune, newest first: 3 fails-to-deliver days, 6 quarterly earnings reports, 2 annual reports and 5 reported financial figures, the latest dated 14 Oct 2026. No next earnings date is announced in SEC filings yet.
| And | ||||
|---|---|---|---|---|
| 14 Oct 2026 | Fails to deliver | Shares failed to deliver | 631 shares | 2K USD notional · <0.001% of shares out |
| 01 Oct 2026 | Fails to deliver | Shares failed to deliver | 2,146 shares | 6K USD notional · 0.001% of shares out |
| 28 Sep 2026 | Fails to deliver | Shares failed to deliver | 3,623 shares | 11K USD notional · 0.002% of shares out |
| 30 Jun 2026 | Quarterly earnings | Q2 2026 reported | EPS −0.12 USD | |
| 30 Jun 2026 | Financials | Total assets | 527.2M USD | at period end |
| 30 Jun 2026 | Financials | Total equity | 474.2M USD | at period end |
| 31 Mar 2026 | Quarterly earnings | Q1 2026 reported | EPS −0.18 USD | |
| 31 Dec 2025 | Annual report | FY 2025 reported | EPS −1.00 USD | Revenue $0M |
| 31 Dec 2025 | Financials | Revenue | 41K USD | fiscal year |
| 31 Dec 2025 | Financials | Net income | −88.1M USD | fiscal year |
| 31 Dec 2025 | Financials | Diluted EPS | −1.00 USD | fiscal year |
| 30 Sep 2025 | Quarterly earnings | Q3 2025 reported | EPS −0.21 USD | Revenue $0M |
| 30 Jun 2025 | Quarterly earnings | Q2 2025 reported | EPS −0.27 USD | Revenue $0M |
| 31 Mar 2025 | Quarterly earnings | Q1 2025 reported | EPS −0.26 USD | Revenue $0M |
| 31 Dec 2024 | Annual report | FY 2024 reported | EPS −1.34 USD | Revenue $0M |
| 30 Sep 2024 | Quarterly earnings | Q3 2024 reported | EPS −0.32 USD | Revenue $0M |
What is Reddit saying about Altimmune (ALT)?
Reddit mentioned ALT 6 times in the 30 days to 10 November 2026, across 2 of the communities we track. All of them were scored for sentiment: 83% read bullish, 0% bearish and 17% neither. Reddit data updated 10 November 2026.
30-day window, Method
How do Reddit mentions of Altimmune (ALT) compare with its price?
Share ↗
Which subreddits are talking about Altimmune (ALT)?
30 days
| Community | Share | Mentions | Net sentiment |
|---|---|---|---|
| r/wallstreetbets | 83% | 5 | +0.10 |
| r/stocks | 17% | 1 | +0.14 |
What do people ask about Altimmune (ALT)?
What did Altimmune shares close at?2.12
Altimmune closed at 2.12 USD on 9 Nov 2026, up 1.44% on the close before. That is the end-of-day price from Finazon, not a live quote.
What is Altimmune’s market cap?411.4M
Altimmune is worth 411.4M USD by market value as of 9 Nov 2026, which is the share price times the shares on issue from its SEC filings.
What is Altimmune’s revenue?41K
Altimmune reported revenue of 41K USD for the year ended 31 Dec 2025, as filed with the SEC. See Filings
Have Altimmune insiders bought or sold shares recently?1 purchase
In the 90 days to 10 Nov 2026, Altimmune insiders reported 1 open-market purchase and no sales (SEC Form 4). A further 6 filings were grants, awards, gifts or exercises rather than open-market trades. See Insiders
Which funds own Altimmune?10 of 45
10 of the 45 funds we track reported a Altimmune position for the quarter ended 30 Jun 2026, per their SEC Form 13F filings. The largest reported positions were Marshall Wace, Viking Global Investors and Millennium Management. See Funds
When did Altimmune last report earnings?−0.12
Altimmune last reported earnings on 30 Jun 2026 for Q2 2026, with EPS of −0.12 USD; no next date is announced in SEC filings yet. See Filings
What is Reddit saying about Altimmune?3 mentions
Altimmune was mentioned 3 times in the last 7 days across the finance subreddits we track, and 6 times over the trailing 30 days. Of the 6 mentions scored for sentiment, 83% read bullish and 0% bearish. That is a social signal, not investment advice. See Reddit

Answers are generated from the live figures on this page — Reddit crowd data, SEC filings and open company records — and update as the data does.
References
- Finazonprior-day close, indicative (IEX-derived, not the official close), some closes dollar-rounded at the source
- TradingViewthe price chart widget, drawn by TradingView from their own data
- RedditReddit ingest across the tracked finance subreddits
- SEC EDGARForm 4 filings (insider transactions)
- SEC EDGAR13F filings
- SECSEC fails-to-deliver (CNS) data
- SEC EDGARXBRL company facts, latest period ended 30 Jun 2026
- SEC EDGARreported earnings figures and scheduled report dates
- SEC EDGARValuation computed from SEC EDGAR filings