[Form 4] DatChat, Inc. Series A Warrant Insider Trading Activity

Rhea-AI Filing Summary

Wayne Linsley, a director of Myseum, Inc. (MYSE), was granted options to purchase 5,000 shares of the company's common stock on August 18, 2025. The options have a stated exercise price of $3 and an expiration date of August 18, 2030. According to the filing, the options vest in four equal semiannual installments with the first installment vesting six months after issuance, and the reporting person beneficially owns 5,000 underlying shares following the grant.

Positive

• Director received equity compensation that aligns interests with shareholders through multi-period vesting
• Clear vesting schedule disclosed: four equal semiannual installments with first vesting six months after issuance

Negative

• Potential dilution from 5,000 options depending on total outstanding shares (size of dilution not disclosed)
• Filing lacks context on company capitalization and recent share price, limiting assessment of financial impact

Insights

Corporate Governance Expert

TL;DR: A director received an equity award aligned with standard multi-year vesting to incentivize continued service.

The Form 4 discloses a 5,000-option grant to a director under the company's equity incentive plan with a $3 exercise price and a five-year term to expiration. The semiannual vesting over two years (four equal installments starting six months after issuance) is typical for director or service-based grants and ties realization to continued tenure. This is a routine equity compensation event; it dilutes shareholders modestly depending on company size and outstanding shares but primarily signals alignment of the director's interests with long-term shareholder value.

Securities Analyst

TL;DR: The filing records a non-derivative position via a 5,000-share option grant; impact depends on company capitalization.

The submission reports a derivative award exercisable into 5,000 common shares with an exercise price of $3 and expiration in 2030. The disclosure includes vesting terms and shows the reporting person beneficially owns 5,000 shares post-grant. For investors, the key factual takeaways are grant size, strike price, vesting schedule, and expiration; material impact on valuation requires comparing the grant to total outstanding shares and recent share price, which are not provided in this filing.

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
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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^*

Linsley Wayne

(Last) (First) (Middle)

C/O MYSEUM, INC.

65 CHURCH STREET, SUITE 230

(Street)

NEW BRUNSWICK NJ 08901

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Myseum, Inc. [ MYSE ]

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)
08/18/2025

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

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
Options (right to buy)	$3	08/18/2025		A		5,000		(1)	08/18/2030	Common Stock	5,000	$0	5,000	D

Explanation of Responses:

1. On August 18, 2025, the Reporting Person was granted options ("Options") to purchase up to 5,000 shares of the Registrant's common stock pursuant to the Registrant's Amended and Restated 2021 Equity Incentive Plan. The Options will vest in four equal installments semiannually, with the first installment vesting six months from the date of issuance.

	/s/ Wayne Linsley	08/19/2025
	** 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 did Wayne Linsley report on the Form 4 for Myseum, Inc. (MYSE)?

The Form 4 reports a grant of options to purchase 5,000 shares of Myseum common stock on August 18, 2025.

What are the key terms of the options granted in the filing?

The options have an exercise price of $3, an expiration date of August 18, 2030, and vest in four equal semiannual installments with the first vesting six months after issuance.

How many shares does the reporting person beneficially own after the transaction?

Following the reported transaction, the reporting person beneficially owns 5,000 shares underlying the options.

Does the Form 4 disclose the reason for the grant?

The filing states the options were granted pursuant to the Registrant's Amended and Restated 2021 Equity Incentive Plan and describes the vesting schedule; no further rationale is provided.

When do the options begin to vest?

The first installment vests six months from the date of issuance, with the remainder vesting in three additional equal semiannual installments.