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
0/20
Latest evidence
30 Jun 2026
- Public ticker
- MYSE, MYSEW on Nasdaq
- Parsed ownership sources
-
3/4/5 and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Darin M. Myman
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- 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
0/20
Latest evidence
30 Jun 2026
3/4/5
13F
Highest disclosed value: $422,050
20 rows are not safely comparable across share classes.
Showing 1-8 of 20 holder rows.
Quick read
Darin M. Myman has the largest disclosed position value at $422K.
0 of 20 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
JANE STREET GROUP, LLC
$258.9K
GEODE CAPITAL MANAGEMENT, LLC
$90.1K
VANGUARD CAPITAL MANAGEMENT LLC
$82.9K
VANGUARD FIDUCIARY TRUST CO
$37.8K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 20 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
|
+$20,465 | 19 Sep 2025 |
| JANE STREET GROUP, LLC |
13F
Company
|
—
class O/S missing
|
$258,895
102,736 shares
|
— | 30 Jun 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
—
class O/S missing
|
$90,107
35,757 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$82,923
32,906 shares
|
— | 30 Jun 2026 |
| VANGUARD FIDUCIARY TRUST CO |
13F
Company
|
—
class O/S missing
|
$37,785
14,994 shares
|
— | 30 Jun 2026 |
| OSAIC HOLDINGS, INC. |
13F
Company
|
—
mixed-class rows
|
$11,193
43,807 shares
mixed-class rows
|
— | 30 Jun 2026 |
| UBS Group AG |
13F
Company
|
—
mixed-class rows
|
$9,349
3,827 shares
mixed-class rows
|
— | 30 Jun 2026 |
| Tower Research Capital LLC (TRC) |
13F
Company
|
—
class O/S missing
|
$3,024
1,200 shares
|
— | 30 Jun 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: +$20,465.
Buys
$20,465
Insiders: 1
Sells
$0
Insiders: 0
Net
+$20,465
Shares: +10,000
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 10,000
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 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 10,000 | 0 | $20,465 | $0 | +$20,465 |
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
+$20,465
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 | +$20,465 | +5.1% | 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 |
* marks a reported price that did not pass the local price check.