Myseum.AI, Inc. (Nasdaq: MYSE), an SEC filer in Telegraph & Other Message Communications, closed at $2.73, +1.9%, on 2026-08-28, with a market cap of $14M as of 2026-08-27, a return on equity of -40.2%, a net margin of -474049.5% and 3-year sales growth of -77.2%. Institutional ownership, earnings history and filed financials are on the tabs below.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | GEODE CAPITAL MANAGEMENT, LLC | 121,673121,673 | $191,026 | 2.81% | ADD 235% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 32,90632,906 | $51,662 | 0.76% | NEW |
| 3 | XTX Topco Ltd | 17,18117,181 | $26,974 | 0.40% | ADD 27% |
| 4 | VANGUARD FIDUCIARY TRUST CO | 14,99414,994 | $23,541 | 0.35% | NEW |
| 5 | COMMONWEALTH EQUITY SERVICES, LLC | 12,11612,116 | $19,020 | 0.28% | — |
| 6 | FNY Investment Advisers, LLC | 8,5008,500 | $13,000 | 0.20% | NEW |
| 7 | OSAIC HOLDINGS, INC. | 3,8053,805 | $5,972 | 0.09% | TRIM -28% |
| 8 | Tower Research Capital LLC (TRC) | 1,5211,521 | $2,388 | 0.04% | TRIM -10% |
| 9 | TOTH FINANCIAL ADVISORY CORP | 800800 | $1,256 | 0.02% | — |
| 10 | JONES FINANCIAL COMPANIES LLLP | 500500 | $815 | 0.01% | ADD 162% |
Ranked by each filer’s own reported value, not shares.
1 holder — The filer reported no value for this line, so it carries no dollar figure and is left out of the percentage and value columns.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | +85,340 | $133,984 | ADD |
| VANGUARD CAPITAL MANAGEMENT LLC | +32,906 | $51,662 | OPEN |
| VANGUARD FIDUCIARY TRUST CO | +14,994 | $23,541 | OPEN |
| FNY Investment Advisers, LLC | +8,500 | $13,345 | OPEN |
| XTX Topco Ltd | +3,684 | $5,784 | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD GROUP INC | −47,900 | $75,203 | CLOSE |
| CITADEL ADVISORS LLC | −41,283 | $64,814 | CLOSE |
| Virtu Financial LLC | −12,590 | $19,766 | CLOSE |
| UBS Group AG | −5,148 | $8,082 | TRIM |
| OSAIC HOLDINGS, INC. | −1,475 | $2,316 | TRIM |
Prior quarter split-rebased · 13Fs are long, US-listed only.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 25K | 39K | 42K | 42K | 36K | 122K | $191,026 |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 33K | $51,662 |
| XTX Topco Ltd | — | — | 16K | 15K | 13K | 17K | $26,974 |
| VANGUARD FIDUCIARY TRUST CO | — | — | — | — | — | 15K | $23,541 |
| COMMONWEALTH EQUITY SERVICES, LLC | — | — | — | — | 12K | 12K | $19,020 |
| FNY Investment Advisers, LLC | — | 73K | — | — | — | 9K | $13,000 |
| OSAIC HOLDINGS, INC. | 3K | 6K | 6K | 6K | 5K | 4K | $5,972 |
| Tower Research Capital LLC (TRC) | 951 | 8K | 2K | 2K | 2K | 2K | $2,388 |
| TOTH FINANCIAL ADVISORY CORP | — | 800 | 800 | 800 | 800 | 800 | $1,256 |
| JONES FINANCIAL COMPANIES LLLP | — | — | — | — | 191 | 500 | $815 |
Green = added, red = trimmed, grey = held; a dash is a quarter with no 13F on file — a gap, not an exit.
Breaks = no 13F that quarter.
Short interest has its own tab now — open SI →
SEC Form 13F · ~10,250 filers, 10y · long-only, US-listed, filed ≤45d after quarter-end.
