STOCK TITAN

Evaxion (EVAX) CAIO details major share and warrant stakes

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
3/A

Rhea-AI Filing Summary

Evaxion A/S CAIO Andreas Holm Mattsson filed an amended Form 3 to detail his ownership of ordinary shares and warrants. He holds 1,382,395 ordinary shares directly and 4,142,521 ordinary shares indirectly through Mattsson Holding af 2008 ApS, where he is described as a control person.

The filing also lists several series of warrants over ordinary shares. These include warrants over 55,147 shares with a 0.7400 exercise price expiring on December 21, 2026, and warrants over 645,700 shares at 0.0590 per share expiring on January 31, 2030. Additional warrant positions cover 35,000 shares at 2.2300, 6,250 shares at 0.7500, 25,000 shares at 0.4000, and 125,000 shares at 0.0700, each expiring on December 31, 2031. Footnotes explain that some warrants arise from a private placement that closed on December 21, 2023 and a public offering that closed on January 31, 2025, with certain awards vesting monthly over 36 months from their initial exercise dates.

Positive

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Insider Mattsson Andreas Holm
Role CAIO Chief AI Officer
Type Security Shares Price Value
holding Warrants -- -- --
holding Warrants -- -- --
holding Warrants -- -- --
holding Warrants -- -- --
holding Warrants -- -- --
holding Warrants -- -- --
holding Ordinary Shares -- -- --
holding Ordinary Shares -- -- --
Holdings After Transaction: Warrants — 55,147 shares (Direct); Ordinary Shares — 1,382,395 shares (Direct); Ordinary Shares — 4,142,521 shares (Indirect, By Mattsson Holding af 2008 ApS)
Footnotes (1)
  1. Mr. Mattsson is a control person of such entity. Warrants pursuant to private placement that closed 12/21/2023. Warrants pursuant to public offering that closed 1/31/2025. Vesting is 1/36 per month over 36 months from the initial exercise date indicated.
Direct ordinary shares 1,382,395 shares Direct ownership reported as of March 18, 2026
Indirect ordinary shares 4,142,521 shares Held indirectly by Mattsson Holding af 2008 ApS
Warrants @ 0.7400 55,147 underlying shares Exercise price 0.7400; expiration December 21, 2026
Warrants @ 0.0590 645,700 underlying shares Exercise price 0.0590; expiration January 31, 2030
High-strike warrants 35,000 underlying shares Exercise price 2.2300; expiration December 31, 2031
Additional warrants 156,250 underlying shares 0.7500, 0.4000 and 0.0700 exercise prices; expire December 31, 2031
Holding entries 8 entries All coded as holdings in transaction summary
Form 3/A regulatory
"An amended Form 3 details the insider’s existing holdings."
An amended Form 3 (Form 3/A) is a corrected or updated disclosure filed with regulators that revises an insider’s initial report of their ownership in a public company — typically for officers, directors or large shareholders. Investors use it like a corrected inventory list: it clarifies who owns how many shares and whether earlier reports had errors, helping assess insider confidence, possible conflicts and the accuracy of ownership records that can affect stock valuation and trust.
Warrants financial
"The filing lists multiple warrant series over ordinary shares."
Warrants are special documents that give you the right to buy a company's stock at a set price before a certain date. They are often used as a way for companies to attract investors or raise money, and their value can increase if the company's stock price goes up.
Underlying Shares financial
"Each warrant position specifies a number of underlying shares."
Indirect ownership financial
"Indirect ownership is reported through Mattsson Holding af 2008 ApS."
Private placement financial
"Some warrants were issued pursuant to a private placement closing December 21, 2023."
A private placement is a way for companies to raise money by selling securities directly to a small group of investors instead of through a public offering. This process is often quicker and less regulated, making it similar to offering a special, exclusive investment opportunity to select individuals or institutions. For investors, it can provide access to unique investment options that are not available on public markets.
Public offering financial
"Additional warrants arose from a public offering that closed January 31, 2025."
A public offering is when a company sells shares to the general public through the stock market, either by issuing new shares to raise cash or by letting existing owners sell their stakes. Think of it like a business opening its doors to many new owners at once: it can bring in money for growth but also increases the number of shares available, which can change the stock price and dilute existing ownership — key factors investors watch closely.
SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0104
Estimated average burden
hours per response:0.5
1. Name and Address of Reporting Person*
Mattsson Andreas Holm

(Last)(First)(Middle)
DR. NEERGAARDS VEJ 5F

(Street)
HORSHOLMDK-2970

(City)(State)(Zip)

DENMARK

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026
3. Issuer Name and Ticker or Trading Symbol
Evaxion A/S [ EVAX ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
03/18/2026
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
CAIO Chief AI Officer
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Ordinary Shares1,382,395D
Ordinary Shares4,142,521IBy Mattsson Holding af 2008 ApS(1)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Warrants(2)12/21/202312/21/2026Ordinary Shares55,147$0.74D
Warrants(3)01/31/202501/31/2030Ordinary Shares645,700$0.059D
Warrants01/01/2022(4)12/31/2031Ordinary Shares35,000$2.23D
Warrants01/01/2023(4)12/31/2031Ordinary Shares6,250$0.75D
Warrants01/01/2024(4)12/31/2031Ordinary Shares25,000$0.4D
Warrants01/01/2024(4)12/31/2031Ordinary Shares125,000$0.07D
Explanation of Responses:
1. Mr. Mattsson is a control person of such entity.
2. Warrants pursuant to private placement that closed 12/21/2023.
3. Warrants pursuant to public offering that closed 1/31/2025.
4. Vesting is 1/36 per month over 36 months from the initial exercise date indicated.
Remarks:
Exhibit List - Exhibit 24.1 Power of Attorney. Mattsson's initial holdings using the Issuer's CIK number as an interim measure, pending receipt of Mr. Mattsson's new filer CIK codes. This Form 3/A has been filed using Mr. Mattsson's CIK codes and reflects him as the Reporting Owner, with no alteration to his beneficial ownership.
/s/ Michael Baird, Attorney-in-Fact04/10/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

FAQ

What does the Evaxion (EVAX) Form 3/A filed by Andreas Holm Mattsson show?

The Form 3/A shows Andreas Holm Mattsson’s existing holdings in Evaxion. It reports direct ownership of 1,382,395 ordinary shares, indirect ownership of 4,142,521 shares via Mattsson Holding af 2008 ApS, and multiple warrant positions over additional ordinary shares at various exercise prices and expirations.

How many Evaxion (EVAX) ordinary shares does Andreas Holm Mattsson hold directly and indirectly?

He holds 1,382,395 Evaxion ordinary shares directly and 4,142,521 ordinary shares indirectly. The indirect position is held through Mattsson Holding af 2008 ApS, where he is a control person, giving investors a view of his total reported equity exposure to the company.

What warrant positions over Evaxion (EVAX) shares are reported in this Form 3/A?

The filing reports several warrant series over Evaxion ordinary shares, including 55,147 shares at a 0.7400 exercise price, 645,700 at 0.0590, 35,000 at 2.2300, 6,250 at 0.7500, 25,000 at 0.4000, and 125,000 at 0.0700, each with specified expiration dates.

Were the Evaxion (EVAX) warrants held by Andreas Holm Mattsson issued in placements or offerings?

Yes. Footnotes state some warrants were issued under a private placement that closed on December 21, 2023, and others under a public offering that closed on January 31, 2025, clarifying how key derivative positions were originally granted to the reporting person.

Does the Evaxion (EVAX) Form 3/A reflect new insider buying or selling activity?

The amendment reflects reported holdings rather than buy or sell transactions. All entries are coded as holdings, with transaction summaries showing no recorded buys, sells, exercises, or gifts, indicating this filing primarily updates disclosure of existing positions.

How do vesting terms affect some Evaxion (EVAX) warrants held by Andreas Holm Mattsson?

A footnote explains certain warrants vest at 1/36 per month over 36 months from each initial exercise date. This means the right to exercise those warrants builds gradually, aligning the ultimate exercisable amount with a three-year vesting schedule.