% of shares outstanding is not shown for MDST: this is a fund line, and we hold no cover-page share count for it at any quarter — a fund's shares outstanding move with creations and redemptions rather than with issuance and buybacks, and it is not the SEC cover-page count this percentage is defined against. The figure is withheld rather than computed against a count that does not exist. Holder share counts are shown as filed.
Crowding percentile withheld — no market cap for MDST in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| WESTWOOD HOLDINGS GROUP INC | 1.6M | 1.6M | 1.6M | 1.6M | 1.6M | 1.6M | $45M |
| LPL Financial LLC | — | — | 23K | 847K | 1.0M | 1.1M | $32M |
| Rockefeller Capital Management L.P. | — | — | — | — | 94K | 188K | $5M |
| Janney Montgomery Scott LLC | 41K | 74K | 94K | 129K | 174K | 173K | $5M |
| North Star Investment Management Corp. | — | — | 1K | 26K | 72K | 170K | $5M |
| STIFEL FINANCIAL CORP | 59K | 59K | 77K | 99K | 115K | 138K | $4M |
| Miller Global Investments, LLC | — | — | — | — | 114K | 114K | $3M |
| Garden State Investment Advisory Services LLC | — | — | — | — | — | 99K | $3M |
| Chicago Partners Investment Group LLC | — | — | — | — | — | 98K | $3M |
| MORGAN STANLEY | — | — | — | 1 | — | 88K | $3M |
| ROYAL BANK OF CANADA | — | — | 9K | 69K | 82K | 88K | $3M |
| COMMONWEALTH EQUITY SERVICES, LLC | — | — | — | — | 14K | 66K | $2M |
| Clear Trail Advisors, LLC | — | — | — | — | 26K | 60K | $2M |
| Wealthcare Advisory Partners LLC | — | — | — | 20K | 23K | 30K | $870,129 |
| Cambridge Investment Research Advisors, Inc. | — | — | — | 17K | 27K | 29K | $831,000 |
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Holder count only — too few computable %-of-shares-outstanding quarters for a % pane. Line breaks are quarters with no 13F record, never interpolated.
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 31 | 4,198,651 | — | $120M |
| 2025-Q4 | 25 | 3,529,078 | — | $93M |
| 2025-Q3 | 22 | 2,961,697 | — | $79M |
| 2025-Q2 | 12 | 1,929,453 | — | $52M |
| 2025-Q1 | 8 | 1,810,684 | — | $50M |
| 2024-Q4 | 8 | 1,827,025 | — | $50M |
| 2024-Q3 | 4 | 1,660,428 | — | $43M |
| 2024-Q2 | 3 | 1,561,539 | — | $39M |
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| Garden State Investment Advisory Services LLC | +99,000 | $3M | OPEN |
| North Star Investment Management Corp. | +97,922 | $3M | ADD |
| Chicago Partners Investment Group LLC | +97,716 | $3M | OPEN |
| Rockefeller Capital Management L.P. | +94,399 | $3M | ADD |
| MORGAN STANLEY | +87,881 | $3M | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| JANE STREET GROUP, LLC | −43,056 | $1M | CLOSE |
| OLD MISSION CAPITAL LLC | −21,171 | $605,491 | CLOSE |
| OSAIC HOLDINGS, INC. | −1,694 | $48,448 | TRIM |
| OPPENHEIMER & CO INC | −1,190 | $34,034 | TRIM |
| Janney Montgomery Scott LLC | −999 | $28,571 | — |
The 2025-Q4 register is as-filed in ITS OWN share basis; every count below was rebased into the 2026-Q1 basis (no split in between, factor 1). Dollar figures value the SHARE delta at one price — the 2026-03-31 close — rather than differencing two filings' own reported values, which would mix the quarter's price move into the trade figure.
13Fs disclose LONG US-listed positions only — shorts, most derivatives, bonds and non-US listings are invisible here, and a filer's quarter-over-quarter change is not necessarily a trade (index rebalances, in-kind transfers and entity successions all read as flow).
