Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Myseum.AI, Inc.MYSE · Entity 7833 | Director · Chief Executive Officer | September 19, 2025 | September 19, 2025 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Myseum.AI, Inc.
Report date September 19, 2025 · Filed September 19, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 194,516 |
Ending reported balance
After 2025-09-19 transaction · row 3
3 source rows · reconciled sequenceRow 1 · 2025-09-19 · Purchase · Acquired 300 · Balance 190,816 Row 2 · 2025-09-19 · Purchase · Acquired 1,000 · Balance 191,816 Row 3 · 2025-09-19 · Purchase · Acquired 2,700 · Balance 194,516 |
| Common StockSEC Table I · non-derivative | IndirectBy spouse | 23 |
Reported balance
Holding disclosure · report date 2025-09-19 · row 4
Holding and transaction disclosures are not merged.
1 source rowRow 4 · Balance 23 F1: 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. |
Filing footnotes · ownership attribution and instrument terms
F1: 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.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 19, 2025 Filed Sep 19, 2025 16:04 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 2,700 | $2.17 | $5,857.65 |
DisclosureSEC source: 0001213900-25-089528 · ownership.xml · nonDerivative · entry 3 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 194,516 Read SEC document |
| September 19, 2025 Filed Sep 19, 2025 16:04 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 1,000 | $2.15 | $2,150.00 |
DisclosureSEC source: 0001213900-25-089528 · ownership.xml · nonDerivative · entry 2 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 191,816 Read SEC document |
| September 19, 2025 Filed Sep 19, 2025 16:04 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 300 | $2.15 | $643.50 |
DisclosureSEC source: 0001213900-25-089528 · ownership.xml · nonDerivative · entry 1 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 190,816 Read SEC document |
| September 03, 2025 Filed Sep 3, 2025 19:12 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 2,600 | $1.95 | $5,069.74 |
DisclosureSEC source: 0001213900-25-084207 · ownership.xml · nonDerivative · entry 2 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 190,516 Read SEC document |
| September 03, 2025 Filed Sep 3, 2025 19:12 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 400 | $1.94 | $774.00 |
DisclosureSEC source: 0001213900-25-084207 · ownership.xml · nonDerivative · entry 1 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 187,916 Read SEC document |
| September 02, 2025 Filed Sep 2, 2025 17:41 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 3,000 | $1.99 | $5,970.00 |
DisclosureSEC source: 0001213900-25-083530 · ownership.xml · nonDerivative · entry 1 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 187,516 Read SEC document |
| August 28, 2025 Filed Aug 28, 2025 18:07 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 500 | $2.65 | $1,325.00 |
DisclosureSEC source: 0001213900-25-081924 · ownership.xml · nonDerivative · entry 4 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 184,516 Read SEC document |
| August 28, 2025 Filed Aug 28, 2025 18:07 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 500 | $2.05 | $1,025.00 |
DisclosureSEC source: 0001213900-25-081924 · ownership.xml · nonDerivative · entry 3 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 184,016 Read SEC document |
| August 28, 2025 Filed Aug 28, 2025 18:07 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 600 | $2.07 | $1,242.00 |
DisclosureSEC source: 0001213900-25-081924 · ownership.xml · nonDerivative · entry 2 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 183,516 Read SEC document |
| August 28, 2025 Filed Aug 28, 2025 18:07 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 400 | $2.00 | $800.00 |
DisclosureSEC source: 0001213900-25-081924 · ownership.xml · nonDerivative · entry 1 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 182,916 Read SEC document |
| August 18, 2025 Filed Aug 19, 2025 16:30 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | GrantOptions (right to buy) · Derivative | 225,000 | $0.00 Strike: $3.00 | $0.00 |
DisclosureSEC source: 0001213900-25-078520 · ownership.xml · derivative · entry 5 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 225,000 Underlying: Common Stock · 225,000 shares Expires 2030-08-18 F2 · derivative.exercise_date: 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. Read SEC document |
| August 18, 2025 Filed Aug 19, 2025 16:30 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 2,500 | $2.15 | $5,375.00 |
DisclosureSEC source: 0001213900-25-078520 · ownership.xml · nonDerivative · entry 3 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 182,516 Read SEC document |
| August 18, 2025 Filed Aug 19, 2025 16:30 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 3,000 | $1.91 | $5,739.60 |
DisclosureSEC source: 0001213900-25-078520 · ownership.xml · nonDerivative · entry 2 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 180,016 Read SEC document |
| August 18, 2025 Filed Aug 19, 2025 16:30 UTC | Myseum.AI, Inc. MYSE · Entity 7833 | PurchaseCommon Stock | 616 | $1.93 | $1,188.88 |
DisclosureSEC source: 0001213900-25-078520 · ownership.xml · nonDerivative · entry 1 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 177,016 Read SEC document |
| January 14, 2025 Filed Jan 16, 2025 17:00 UTC | Myseum.AI, Inc. DATS · Entity 7833 | GrantOptions (right to buy) · Derivative | 200,000 | $0.00 Strike: $5.50 | $0.00 |
DisclosureSEC source: 0001213900-25-004251 · ownership.xml · derivative · entry 1 Myman Darin M · CIK 0001349673 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 225,000 Underlying: Common Stock · 200,000 shares Expires 2035-01-14 F1 · derivative.exercise_date: On January 14, 2025, the Reporting Person was granted options ("Options") to purchase up to 200,000 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. Read SEC document |
| September 22, 2022 Filed Sep 22, 2022 18:17 UTC | Myseum.AI, Inc. DATS · Entity 7833 | PurchaseCOMMON STOCK | 14,000 | $0.70 | $9,798.60 |
DisclosureSEC source: 0001520138-22-000433 · ownership.xml · nonDerivative · entry 1 Myman Darin M · CIK 0001349673 · Director · CHIEF EXECUTIVE OFFICER 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,764,275 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.71 to $0.7096. The reporting person undertakes to provide DatChat, Inc., any security holder of DatChat, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. Read SEC document |
| September 28, 2021 Filed Sep 30, 2021 16:45 UTC | Myseum.AI, Inc. DATS · Entity 7833 | GrantEmployee Stock Option (right to buy) · Derivative | 250,000 | $0.00 Strike: $35.00 | $0.00 |
DisclosureSEC source: 0001213900-21-050816 · ownership.xml · derivative · entry 1 Myman Darin M · CIK 0001349673 · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 250,000 Underlying: Common Stock · 250,000 shares Expires 2026-09-28 F1 · derivative.exercise_date: The options shall vest and become exercisable in four equal installments every six months from the date of the grant (the first of such dates being March 28, 2022). Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.