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ALT
NASDAQ Life Sciences

Altimmune Seeks Shareholder Approval to Double Authorized Stock, Potentially Enabling Significant Future Dilution

Arie Shkolnikov · Analysis by Wiseek AI
More coverage: Biotech Stocks · Healthcare
Sentiment info
Negative
Importance info
9
Price
$3.61
Mkt Cap
$470.853M
52W Low
$2.9
52W High
$7.73
52W Position info
24% above low
Off High info
53% below high
Rel. Volume info
0.5× avg
Market data snapshot near publication time

ALT sits 24% above its 52-week low of $2.9.

Summary

Altimmune has filed its definitive proxy statement, seeking shareholder approval to double its authorized common stock from 200 million to 400 million shares, a move that could lead to substantial future dilution.


Key Events · Corporate Governance and Compliance · ALT

  • Shareholder Meeting Scheduled

    The Annual Meeting of Stockholders is scheduled for Thursday, April 16, 2026, at 8:30 a.m. Eastern Time, to be held virtually.

  • Proposal to Double Authorized Common Stock

    The Board seeks approval to amend the Certificate of Incorporation, increasing authorized common stock from 200,000,000 to 400,000,000 shares. This follows the preliminary proxy statement filed on March 6, 2026, which first disclosed this intent.

  • Significant Potential Dilution

    With 130,105,177 shares outstanding as of March 13, 2026, the additional 200,000,000 authorized shares represent a potential dilution of approximately 153.7% if fully issued.

  • Increase in ESPP Share Reserve

    Shareholders will also vote on increasing the shares reserved under the 2019 Employee Stock Purchase Plan (ESPP) from 403,500 to 1,108,827 shares, an increase of 705,327 shares for employee incentives.


Analysis · ALT · Life Sciences

This definitive proxy statement outlines critical proposals for the upcoming annual meeting, most notably a request to double the authorized common stock from 200 million to 400 million shares. This move, previously signaled in a preliminary proxy, grants the board substantial flexibility for future capital raises, acquisitions, or other corporate transactions without requiring additional shareholder approval. If all these newly authorized shares were issued, it would represent a potential dilution of over 150% to current outstanding shares, a highly significant amount. While the company states this is for general corporate purposes and growth, such a large increase creates a considerable overhang and potential for future dilution. Additionally, the company seeks to increase shares for its Employee Stock Purchase Plan, a more modest dilutive measure aimed at employee retention. Investors should carefully consider the implications of this significant increase in authorized capital.

At the time of this filing, ALT was trading at $3.61 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $470.9M. The 52-week trading range was $2.90 to $7.73. This filing was assessed with negative market sentiment and an importance score of 9 out of 10.

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ALT - Latest Insights

ALT
May 27, 2026, 8:00 AM EDT
Source: GlobeNewswire
Importance Score:
9
Price at Filing: $2.96
Real-time Price: $2.82 info
Change: -$0.140 (-5%) info
Market Cap: $538.693M info
ALT
May 13, 2026, 4:21 PM EDT
Source: Wiseek News
Importance Score:
7
Price at Filing: $2.99
Real-time Price: $2.82 info
Change: -$0.170 (-6%) info
Market Cap: $538.693M info
ALT
May 13, 2026, 4:13 PM EDT
Filing Type: 10-Q
Importance Score:
8
Price at Filing: $2.99
Real-time Price: $2.82 info
Change: -$0.170 (-6%) info
Market Cap: $538.693M info
ALT
May 13, 2026, 4:04 PM EDT
Source: Wiseek News
Importance Score:
8
Price at Filing: $3.02
Real-time Price: $2.82 info
Change: -$0.200 (-7%) info
Market Cap: $538.693M info
ALT
May 13, 2026, 7:34 AM EDT
Filing Type: 8-K
Importance Score:
7
Price at Filing: $3.11
Real-time Price: $2.82 info
Change: -$0.285 (-9%) info
Market Cap: $538.693M info