Hyperion DeFi (NASDAQ: HYPD) director reports open-market share buys

Rhea-AI Filing Summary

Hyperion DeFi, Inc. reported insider share purchases by a director. A Form 4 filing shows open-market buys of 18,742 shares of common stock on 12/18/2025 at a volume-weighted average price of $3.1389 per share and an additional 19,702 shares at a volume-weighted average price of $3.1385 per share. These prices reflect multiple trades executed between $3.04 and $3.22 per share. Following these transactions, the reporting person beneficially owns 75,448 shares directly and 95,150 shares indirectly through a spouse.

Insider Trade Summary

Net Buyer: 38,444 shares ($120,664)

Net Buy 2 txns

Insider Strahlman Ellen R

Role Director

Bought 38,444 shs ($121K)

Type	Security	Shares	Price	Value
Purchase	Common Stock, par value $.0001	18,742	$3.1389	$59K
Purchase	Common Stock, par value $.0001	19,702	$3.1385	$62K

Holdings After Transaction: Common Stock, par value $.0001 — 75,448 shares (Direct); Common Stock, par value $.0001 — 95,150 shares (Indirect, By Spouse)

Footnotes (1)

1. Represents the volume-weighted average purchase price of several purchases made on the open market at prices ranging from $3.04 to $3.22 per share. Represents the volume-weighted average purchase price of several purchases made on the open market at prices ranging from $3.04 to $3.22 per share.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Strahlman Ellen R

(Last) (First) (Middle)

C/O HYPERION DEFI, INC.

23461 SOUTH POINTE DRIVE, SUITE 390

(Street)

LAGUNA HILLS CA 92653

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
HYPERION DEFI, INC. [ HYPD ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/18/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $.0001	12/18/2025		P		18,742(1)	A	$3.1389	75,448	D
Common Stock, par value $.0001	12/18/2025		P		19,702(2)	A	$3.1385	95,150	I	By Spouse

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents the volume-weighted average purchase price of several purchases made on the open market at prices ranging from $3.04 to $3.22 per share.

2. Represents the volume-weighted average purchase price of several purchases made on the open market at prices ranging from $3.04 to $3.22 per share.

	/s/ Ellen Strahlman	12/22/2025
	** Signature of Reporting Person	Date
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 4 (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.

FAQ

What insider transaction did Hyperion DeFi (HYPD) disclose in this Form 4?

The filing discloses that a director of Hyperion DeFi, Inc. purchased common stock in open-market transactions on 12/18/2025.

How many Hyperion DeFi (HYPD) shares were bought in the reported transactions?

The director reported buying 18,742 shares of common stock in one transaction and 19,702 shares in another on the same date.

At what prices were the Hyperion DeFi (HYPD) shares purchased?

The filing states volume-weighted average purchase prices of $3.1389 per share and $3.1385 per share, from trades between $3.04 and $3.22 per share.

What is the directors total beneficial ownership of Hyperion DeFi (HYPD) after these trades?

After the reported transactions, the director beneficially owns 75,448 shares directly and 95,150 shares indirectly through a spouse.

What is the reporting persons relationship to Hyperion DeFi (HYPD)?

The reporting person is identified as a Director of Hyperion DeFi, Inc. in the Form 4.

Were the Hyperion DeFi (HYPD) purchases made in the open market?

Yes. The explanation notes that the reported prices are volume-weighted averages of several open-market purchases.