Comparable stake leader
Darin M. Myman
SEC ownership of Myseum.AI, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001648960.
Disclosed value leader
Darin M. Myman
Comparable rows
0/25
Latest evidence
31 Mar 2026
- Public ticker
- MYSE, MYSEW on Nasdaq
- Parsed ownership sources
- 3/4/5 and 13F
- Largest SEC-reported holder
- Darin M. Myman
- Latest parsed ownership date
- 31 Mar 2026
- Issuer CIK
- 0001648960
- Issuer location
- New Brunswick, NJ
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Myseum.AI, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Darin M. Myman
Disclosed value leader
Darin M. Myman
Comparable rows
0/25
Latest evidence
31 Mar 2026
3/4/5
13F
Highest disclosed value: $422,050
25 rows are not safely comparable across share classes.
Showing 1-8 of 25 holder rows.
Quick read
Darin M. Myman has the largest disclosed position value at $422K.
0 of 25 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Darin M. Myman's linked filing trail.
Disclosed position value
Top 5
Darin M. Myman
$422K
GEODE CAPITAL MANAGEMENT, LLC
$191K
VANGUARD CAPITAL MANAGEMENT LLC
$51.7K
XTX Topco Ltd
$27K
VANGUARD FIDUCIARY TRUST CO
$23.5K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 25 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Darin M. Myman |
3/4/5
Chief Executive Officer, Director
|
—
mixed-class rows
|
$422,050
419,539 shares
mixed-class rows
|
+$37,160 | 19 Sep 2025 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
—
class O/S missing
|
$191,026
121,673 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$51,662
32,906 shares
|
— | 31 Mar 2026 |
| XTX Topco Ltd |
13F
Company
|
—
class O/S missing
|
$26,974
17,181 shares
|
— | 31 Mar 2026 |
| VANGUARD FIDUCIARY TRUST CO |
13F
Company
|
—
class O/S missing
|
$23,541
14,994 shares
|
— | 31 Mar 2026 |
| COMMONWEALTH EQUITY SERVICES, LLC |
13F
Company
|
—
class O/S missing
|
$19,020
12,116 shares
|
— | 31 Mar 2026 |
| FNY Investment Advisers, LLC |
13F
Company
|
—
class O/S missing
|
$13,000
8,500 shares
|
— | 31 Mar 2026 |
| OSAIC HOLDINGS, INC. |
13F
Company
|
—
mixed-class rows
|
$7,372
38,805 shares
mixed-class rows
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$37,160.
Buys
$37,160
Insiders: 1
Sells
$0
Insiders: 0
Net
+$37,160
Shares: +18,116
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 18,116
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 4,000 | 0 | $8,651 | $0 | +$8,651 |
| 9-12 | 14,116 | 0 | $28,509 | $0 | +$28,509 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-9 of 9 reporting-owner rows connected to Myseum.AI, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
9
Largest Forms 3/4/5 holder
Darin M. Myman
Net 12M change
+$37,160
Latest report
19 Sep 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Darin M. Myman | Chief Executive Officer, Director | $422,050 | +$37,160 | +9.7% | Mixed | 19 Sep 2025 |
| Brett Blumberg | Chief Financial Officer | Mixed | 15 Feb 2022 | |||
| Dan Zeno | Chief Operating Officer | Mixed | 28 Sep 2021 | |||
| Gabriel Daniels | Chief Information Officer | Mixed | 24 Aug 2021 | |||
| Vadim Mats | Chief Financial Officer | Mixed | 17 Aug 2021 | |||
| Carly Schumer | Director | Mixed | 18 Aug 2025 | |||
| Joseph Eugene Nelson | Director | Mixed | 18 Aug 2025 | |||
| Wayne Linsley | Director | Mixed | 18 Aug 2025 | |||
| Peter Shelus | Director | Mixed | 18 Aug 2025 |
Recent insider transactions for Myseum.AI, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Darin M. Myman | DATS | Common Stock | Purchase | 2.1% | $8,651 | $2.16 | 4,000 | 194,516 | 19 Sep 2025 | Direct |
| Darin M. Myman | DATS | Common Stock | Purchase | 1.6% | $5,844 | $1.95 | 3,000 | 190,516 | 03 Sep 2025 | Direct |
| Darin M. Myman | DATS | Common Stock | Purchase | 1.63% | $5,970 | $1.99 | 3,000 | 187,516 | 02 Sep 2025 | Direct |
| Darin M. Myman | DATS | Common Stock | Purchase | 1.1% | $4,392 | $2.20 | 2,000 | 184,516 | 28 Aug 2025 | Direct |
| Wayne Linsley | DATS | Options (right to buy) | Award | 5,000 | 5,000 | 18 Aug 2025 | Direct | |||
| Peter Shelus | DATS | Options (right to buy) | Award | 25,000 | 25,000 | 18 Aug 2025 | Direct | |||
| Joseph Eugene Nelson | DATS | Options (right to buy) | Award | 5,000 | 5,000 | 18 Aug 2025 | Direct | |||
| Darin M. Myman | DATS | Common Stock | Purchase | 3.47% | $12,303 | $2.01 | 6,116 | 182,516 | 18 Aug 2025 | Direct |
| Darin M. Myman | DATS | Options (right to buy) | Award | 225,000 | 225,000 | 18 Aug 2025 | Direct | |||
| Carly Schumer | DATS | Options (right to buy) | Award | 5,000 | 5,000 | 18 Aug 2025 | Direct |
* marks a reported price that did not pass the local price check.