Hyperion DeFi (HYPD) director adds 8,000 shares in open-market buys

Q: What insider activity did HYPERION DEFI (HYPD) report for Jung Hyunsu?

HYPERION DEFI reported that director and officer Jung Hyunsu bought a total of 8,000 shares of Common Stock in open-market transactions. These purchases were disclosed on Form 4 as routine insider buying activity.

Q: How many HYPERION DEFI (HYPD) shares did Jung Hyunsu purchase and at what prices?

Jung Hyunsu purchased 8,000 shares of HYPERION DEFI Common Stock in four trades. Reported prices per share ranged from $3.64 to $3.81, reflecting typical open-market transaction price variation over the two trading days.

Q: What type of transactions did the HYPERION DEFI (HYPD) Form 4 disclose?

The Form 4 discloses open-market purchases of Common Stock, coded “P” for purchase. All transactions are non-derivative equity trades, meaning they involve direct buying of HYPERION DEFI shares rather than options or other derivatives.

Filing Impact

(Neutral)

Filing Sentiment

(Positive)

Form Type

Rhea-AI Filing Summary

HYPERION DEFI, INC. director and officer Jung Hyunsu reported open-market purchases of a total of 8,000 shares of Common Stock. The trades occurred on June 1–2, 2026 at prices between $3.64 and $3.81 per share. Following these transactions, Jung Hyunsu directly owns 1,385,676 shares of Hyperion DeFi common stock.

Insider Trade Summary

Net Buyer: 8,000 shares ($29,580)

Net Buy 4 txns

Insider Jung Hyunsu

Role See Remarks

Bought 8,000 shs ($30K)

Type	Security	Shares	Price	Value
Purchase	Common Stock, par value $0.0001	500	$3.64	$2K
Purchase	Common Stock, par value $0.0001	500	$3.68	$2K
Purchase	Common Stock, par value $0.0001	5,000	$3.66	$18K
Purchase	Common Stock, par value $0.0001	2,000	$3.81	$8K

Holdings After Transaction: Common Stock, par value $0.0001 — 1,385,176 shares (Direct, null)

Footnotes (1)

Key Figures

Total shares purchased: 8,000 shares Purchase price range: $3.64–$3.81 per share Holdings after transactions: 1,385,676 shares +2 more

5 metrics

Total shares purchased 8,000 shares Open-market Common Stock buys on June 1–2, 2026

Purchase price range $3.64–$3.81 per share Reported transaction prices for June 1–2, 2026 buys

Holdings after transactions 1,385,676 shares Direct ownership following reported Form 4 purchases

Individual trade size 5,000 shares Largest single open-market purchase at $3.66 per share

Number of purchase transactions 4 trades All coded P for open-market purchase, non-derivative

Key Terms

open-market purchase, Common Stock, par value $0.0001, Form 4

3 terms

open-market purchase financial

"transaction_action: "open-market purchase" for each Common Stock trade"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Stock, par value $0.0001 financial

"security_title: "Common Stock, par value $0.0001" on all transactions"

Form 4 regulatory

"Insider activity is disclosed on SEC Form 4 for Jung Hyunsu"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

06/02/2026 - 04:18 PM

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^*

Jung Hyunsu

(Last)

(First)

(Middle)

C/O HYPERION DEFI, INC.

3090 NOWITZKI WAY, SUITE 300

(Street)

DALLAS

TEXAS

75219

(City)

(State)

(Zip)

UNITED STATES

(Country)

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
X	Officer (give title below)	Other (specify below)
	See Remarks

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

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

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

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock, par value $0.0001	06/01/2026		P		5,000	A	$3.66	1,382,676	D
Common Stock, par value $0.0001	06/01/2026		P		2,000	A	$3.81	1,384,676	D
Common Stock, par value $0.0001	06/02/2026		P		500	A	$3.64	1,385,176	D
Common Stock, par value $0.0001	06/02/2026		P		500	A	$3.68	1,385,676	D

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

Remarks:

Chief Executive Officer and Chief Investment Officer

	/s/ Hyunsu Jung	06/02/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider activity did HYPERION DEFI (HYPD) report for Jung Hyunsu?

HYPERION DEFI reported that director and officer Jung Hyunsu bought a total of 8,000 shares of Common Stock in open-market transactions. These purchases were disclosed on Form 4 as routine insider buying activity.

How many HYPERION DEFI (HYPD) shares did Jung Hyunsu purchase and at what prices?

Jung Hyunsu purchased 8,000 shares of HYPERION DEFI Common Stock in four trades. Reported prices per share ranged from $3.64 to $3.81, reflecting typical open-market transaction price variation over the two trading days.

On what dates did Jung Hyunsu buy HYPERION DEFI (HYPD) shares?

The Form 4 shows that Jung Hyunsu’s open-market purchases of HYPERION DEFI Common Stock occurred on June 1, 2026 and June 2, 2026. All reported transactions involved the company’s Common Stock with par value $0.0001.

How many HYPERION DEFI (HYPD) shares does Jung Hyunsu own after these trades?

After the reported open-market purchases, Jung Hyunsu directly owns 1,385,676 shares of HYPERION DEFI Common Stock. This post-transaction holding figure comes from the Form 4 totals shown following the individual transactions.

What type of transactions did the HYPERION DEFI (HYPD) Form 4 disclose?

The Form 4 discloses open-market purchases of Common Stock, coded “P” for purchase. All transactions are non-derivative equity trades, meaning they involve direct buying of HYPERION DEFI shares rather than options or other derivatives.