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Morningside Venture (APMD) discloses 6.9M+ Apnimed pre-IPO convertible stake

(Neutral)
(Neutral)
Form Type
3

Rhea-AI Filing Summary

Morningside Venture Investments Ltd filed an initial ownership report for Apnimed, Inc., showing holdings of Convertible Preferred Stock and a Convertible Promissory Note that are convertible into an aggregate of 6,915,837 shares of Common Stock. The Preferred Stock will automatically convert immediately prior to Apnimed’s IPO, and the Note will convert at a price equal to 90% of the IPO price per share upon the IPO closing or otherwise mature on September 17, 2027. Certain directors of Morningside share voting and dispositive power and disclaim beneficial ownership of these securities.

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Insider Morningside Venture Investments Ltd
Role 10% Owner
Type Security Shares Price Value
holding Convertible Preferred Stock F1, F2 -- -- --
holding Convertible Promissory Note F3, F4, F5, F2, F6 -- -- --
Holdings After Transaction: Convertible Preferred Stock — 6,840,213 shares (Direct); Convertible Promissory Note — 75,624 shares (Indirect, By MVIL, LLC)
Footnotes (6)
  1. F1. Each share of convertible Preferred Stock is convertible into one share of Class A common stock ("Class A Common Stock") at any time at the option of the holder into such number of fully paid and non-assessable shares of Class A Common Stock as is determined by dividing the original issuance price of each series of convertible Preferred Stock by each series' conversion price in effect at the time of conversion, and will automatically convert immediately prior to the closing of the Issuer's initial public offering (the "IPO") into the number of shares shown in Column 3 without payment of additional consideration, which shares will then be reclassified into shares of common stock ("Common Stock") pursuant to the Reclassification (as defined below). The convertible Preferred Stock has no expiration date.
  2. F2. Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards, and Cheung Ka Ho are the directors of Morningside Venture Investments Limited ("Morningside") and share voting and dispositive power with respect to the securities held by Morningside and MVIL, LLC, Morningside's wholly-owned subsidiary. Ms. Richard, Ms. Franklin, Mr. Edwards, and Mr. Cheung each disclaim ownership of the securities owned by Morningside and MVIL, LLC.
  3. F3. The Convertible Promissory Note (the "Note") was originally issued on September 17, 2025, and includes a conversion feature providing for automatic conversion upon the closing of the IPO. As a result of the IPO pricing on July 30, 2026, the conversion price will equal 90% of the IPO offering price, contingent upon the closing of the IPO.
  4. F4. The Note matures on September 17, 2027, but will convert automatically upon the closing of the IPO prior to the maturity date.
  5. F5. Following the conversion of all outstanding shares of the Issuer's Preferred Stock, Class B common stock, and Class C common stock into shares of Class A Common Stock and the reclassification of each share of Class A Common Stock into one share of Common Stock in an exempt transaction pursuant to Rule 16b-7 (the "Reclassification"), in each case immediately prior to the closing of the IPO, the principal amount of the Note (together with accrued interest thereon) will convert upon the closing of the IPO into shares of Common Stock at a conversion price equal to 90% of the IPO price per share.
  6. F6. Represents securities held by MVIL, LLC.
Underlying shares from Preferred Stock 6,840,213 shares of Common Stock Convertible Preferred Stock position reported as of 2026-07-30
Underlying shares from Convertible Note 75,624 shares of Common Stock Convertible Promissory Note position held by MVIL, LLC
Total underlying Common shares 6,915,837 shares of Common Stock Sum of underlying shares from Preferred Stock and Note
Note issue date September 17, 2025 Original issuance date of the Convertible Promissory Note
Note maturity date September 17, 2027 Maturity date if not converted earlier upon IPO closing
IPO conversion discount 90% of IPO offering price Conversion price for Note upon IPO closing
Convertible Preferred Stock financial
"Each share of convertible Preferred Stock is convertible into one share of Class A"
Convertible preferred stock is a special class of company shares that pays priority, usually fixed, payments to holders and can be exchanged later for a set number of common shares. It matters to investors because it combines steady income and added protection with the chance to share in a company’s upside; think of it as a hybrid between a bond that pays regularly and an option to convert into growth-oriented stock, where the conversion rules influence both potential gains and how much common shareholders’ ownership may be reduced.
Convertible Promissory Note financial
"The Convertible Promissory Note (the "Note") was originally issued on September 17, 2025"
A convertible promissory note is a loan a company takes now that can later be turned into shares instead of being repaid in cash. Think of it as lending money with the option to accept ownership in the business down the road; that matters to investors because it affects who gets paid first, how much ownership existing shareholders keep, and the company’s future valuation and cash needs. Terms such as conversion price, interest and maturity determine the financial impact.
automatic conversion financial
"includes a conversion feature providing for automatic conversion upon the closing of the IPO"
Reclassification financial
"reclassified into shares of common stock ("Common Stock") pursuant to the Reclassification"
Reclassification is the formal change in how an asset, liability, security, transaction, or business activity is labeled on financial records or under rules. It matters to investors because the new label can alter reported profits, tax treatment, ownership rights or perceived risk—much like moving an item from 'personal' to 'business' use, it doesn't create value by itself but can change comparisons, taxes, and who controls outcomes.
Rule 16b-7 regulatory
"in an exempt transaction pursuant to Rule 16b-7 (the "Reclassification")"
A U.S. Securities and Exchange Commission safe-harbor rule that shields corporate insiders (officers, directors and large shareholders) from automatic short-swing profit claims when they buy or sell their company’s stock under a pre-approved, written plan that follows specific timing and nondiscretionary rules. For investors, the rule matters because it distinguishes routine, formula-driven insider transactions from opportunistic trades that could trigger automatic profit recoveries—think of it as an approved autopilot for insider trading that reduces legal uncertainty when the plan’s conditions are met.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What ownership in Apnimed, Inc. (APMD) does Morningside report on this Form 3?

Morningside reports holdings of Convertible Preferred Stock and a Convertible Promissory Note convertible into a total of 6,915,837 Apnimed Common shares. These positions establish Morningside as a significant, over-10% beneficial owner at the time of the filing.

How many Apnimed (APMD) shares are underlying Morningside’s Convertible Preferred Stock?

The Convertible Preferred Stock held by Morningside is convertible into 6,840,213 shares of Apnimed Common Stock. Each Preferred share converts based on its series issuance price and conversion price immediately prior to the IPO closing in an automatic conversion and reclassification.

What are the key terms of Morningside’s Convertible Promissory Note in Apnimed (APMD)?

The Convertible Promissory Note was issued on September 17, 2025 and is convertible into 75,624 Common shares. Upon Apnimed’s IPO closing, it converts automatically at a price equal to 90% of the IPO offering price; otherwise, it matures on September 17, 2027.

When will Morningside’s Apnimed (APMD) Preferred Stock and Note convert into Common Stock?

The Preferred Stock converts automatically into Common Stock immediately prior to the closing of Apnimed’s IPO. The Note converts automatically upon the IPO closing at 90% of the IPO price; if no IPO occurs before then, the Note instead matures on September 17, 2027.

Who controls voting and dispositive power over Morningside’s Apnimed (APMD) securities?

Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards, and Cheung Ka Ho are directors of Morningside Venture Investments Limited. They share voting and dispositive power over securities held by Morningside and its subsidiary MVIL, LLC, while each disclaims beneficial ownership of those securities.

How are MVIL, LLC’s Apnimed (APMD) holdings reflected in this Form 3?

The filing shows 75,624 underlying Common shares from a Convertible Promissory Note held indirectly by Morningside through MVIL, LLC. A footnote specifies these securities are "held by MVIL, LLC," a wholly owned subsidiary of Morningside.
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*
Morningside Venture Investments Ltd

(Last)(First)(Middle)
2ND FLOOR, LE PRINCE DE GALLES 3-5
AVENUE DES CITRONNIERS

(Street)
MONACOMC 98000

(City)(State)(Zip)

MONACO

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
07/30/2026
3. Issuer Name and Ticker or Trading Symbol
Apnimed, Inc. [ APMD ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
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)
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
Convertible Preferred Stock (1) (1)Common Stock6,840,213(1)D(2)
Convertible Promissory Note (3)(4)(5) (3)(4)(5)Common Stock75,624(3)(4)(5)IBy MVIL, LLC(2)(6)
Explanation of Responses:
1. Each share of convertible Preferred Stock is convertible into one share of Class A common stock ("Class A Common Stock") at any time at the option of the holder into such number of fully paid and non-assessable shares of Class A Common Stock as is determined by dividing the original issuance price of each series of convertible Preferred Stock by each series' conversion price in effect at the time of conversion, and will automatically convert immediately prior to the closing of the Issuer's initial public offering (the "IPO") into the number of shares shown in Column 3 without payment of additional consideration, which shares will then be reclassified into shares of common stock ("Common Stock") pursuant to the Reclassification (as defined below). The convertible Preferred Stock has no expiration date.
2. Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards, and Cheung Ka Ho are the directors of Morningside Venture Investments Limited ("Morningside") and share voting and dispositive power with respect to the securities held by Morningside and MVIL, LLC, Morningside's wholly-owned subsidiary. Ms. Richard, Ms. Franklin, Mr. Edwards, and Mr. Cheung each disclaim ownership of the securities owned by Morningside and MVIL, LLC.
3. The Convertible Promissory Note (the "Note") was originally issued on September 17, 2025, and includes a conversion feature providing for automatic conversion upon the closing of the IPO. As a result of the IPO pricing on July 30, 2026, the conversion price will equal 90% of the IPO offering price, contingent upon the closing of the IPO.
4. The Note matures on September 17, 2027, but will convert automatically upon the closing of the IPO prior to the maturity date.
5. Following the conversion of all outstanding shares of the Issuer's Preferred Stock, Class B common stock, and Class C common stock into shares of Class A Common Stock and the reclassification of each share of Class A Common Stock into one share of Common Stock in an exempt transaction pursuant to Rule 16b-7 (the "Reclassification"), in each case immediately prior to the closing of the IPO, the principal amount of the Note (together with accrued interest thereon) will convert upon the closing of the IPO into shares of Common Stock at a conversion price equal to 90% of the IPO price per share.
6. Represents securities held by MVIL, LLC.
/s/ Frances Anne Elizabeth Richard, for Morningside Venture Investments Limited07/30/2026
** 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)