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

Rhea-AI Filing Summary

Darin Myman, CEO and Director of Myseum, Inc. (MYSE), reported multiple open-market purchases of common stock and a grant of stock options. The Form 4 shows three purchases on August 18, 2025 totaling 6,116 shares acquired at prices of $1.93, $1.9132 and $2.15, bringing his direct beneficial ownership to 182,516 shares after the transactions. On the same date he was granted options to purchase 225,000 shares at an exercise price of $3.00 that vest in four equal semiannual installments beginning six months after issuance and expire August 18, 2030. The filing notes indirect beneficial ownership of shares held by his spouse and includes a disclaimer of beneficial ownership by the reporting person.

Positive

• Insider purchases recorded: Reporting person acquired a total of 6,116 shares on August 18, 2025, increasing direct ownership to 182,516 shares.
• Equity incentive alignment: Grant of 225,000 options with a multi-period vesting schedule aligns CEO incentives with long-term performance.
• Transparent disclosure: Filing discloses indirect ownership by spouse and includes standard disclaimer, meeting Section 16 reporting requirements.

Negative

• Potential dilution: Options to purchase 225,000 shares at $3.00 could dilute existing shareholders if fully exercised.
• Exercise price above recent trades: Option exercise price of $3.00 exceeds the reported purchase prices (~$1.91–$2.15), meaning options are currently out-of-the-money and may not provide immediate intrinsic value.

Insights

Securities Analyst

TL;DR: Insider purchases plus a sizable option grant show management participation and future equity dilution potential.

The reporting shows both current purchases of common stock and a contemporaneous option grant of 225,000 shares exercisable at $3.00 through 2030. The purchases (6,116 shares across three trades) increase direct holdings to 182,516 shares, and the option grant creates potential future issuance if exercised. From a securities standpoint, the combination of purchases and incentive awards indicates alignment of the CEO with equity ownership while also introducing potential dilution if options vest and are exercised.

Corporate Governance Expert

TL;DR: Standard Section 16 disclosure of insider activity and equity incentive grant; vesting schedule aligns retention with multi-year service.

The Form 4 discloses a routine equity incentive grant under the companys 2021 Equity Incentive Plan with a clear vesting schedule (four equal semiannual installments beginning six months after issuance). The filing also records personal open-market purchases and notes indirect ownership by spouse, satisfying disclosure obligations. The report includes the reporting person's disclaimer of beneficial ownership, a common legal precaution. No governance red flags are explicitly disclosed 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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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^*

Myman Darin M

(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
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

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
Common Stock	08/18/2025		P		616	A	$1.93	177,016	D
Common Stock	08/18/2025		P		3,000	A	$1.9132	180,016	D
Common Stock	08/18/2025		P		2,500	A	$2.15	182,516	D
Common Stock								23(1)	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
Options (right to buy)	$3	08/18/2025		A		225,000		(2)	08/18/2030	Common Stock	225,000	$0	225,000	D

Explanation of Responses:

1. The Reporting Person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

2. On August 18, 2025, the Reporting Person was granted options ("Options") to purchase up to 225,000 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/ Darin Myman	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 transactions did Darin Myman report for Myseum, Inc. (MYSE)?

The Form 4 reports three open-market purchases totaling 6,116 shares on August 18, 2025, and a grant of 225,000 options exercisable at $3.00.

How many shares does Darin Myman beneficially own after the reported transactions?

Following the reported purchases, the filing shows 182,516 shares beneficially owned directly by the reporting person.

What are the key terms of the option grant disclosed on the Form 4?

Options to purchase 225,000 shares, exercise price $3.00, vest in four equal semiannual installments beginning six months after issuance, expiring on August 18, 2030.

Does the filing indicate any indirect ownership?

Yes, the filing notes indirect beneficial ownership of shares held by the reporting person's spouse.

Did the reporting person disclaim beneficial ownership?

The filing includes a statement where the reporting person disclaims beneficial ownership of certain securities as described in the report.