Who owns MDST
Which tracked institutional funds hold MDST, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MDST company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-08-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on MDST is one-sided between 2026-Q1 and 2026-Q2: 13 added or opened and 2 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
MDST’s largest tracked holder by dollar value, WESTWOOD HOLDINGS GROUP INC, sizes it at 0.3% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.3pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in MDST divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 34 tracked filers holding MDST, 24 increased or opened the position and 13 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in MDST between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 2
- OLD MISSION CAPITAL LLC$755K
- JANE STREET GROUP, LLC$713K
Full exits 2
- Janney Montgomery Scott LLC$5M
- Cambridge Investment Research Advisors, Inc.$831K
Largest adds
- MORGAN STANLEY$14M
- Chicago Partners Investment Group LLC$3M
- LPL Financial LLC$2M
- North Star Investment Management Corp.$1M
- ROYAL BANK OF CANADA$760K
- COMMONWEALTH EQUITY SERVICES, LLC$679K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| WESTWOOD HOLDINGS GROUP INC trimmed | 1,581,549 | $46M | 30.9% | 2026-Q2 |
| LPL Financial LLC added | 1,179,517 | $34M | 23.1% | 2026-Q2 |
| MORGAN STANLEY added | 559,248 | $16M | 10.9% | 2026-Q2 |
| North Star Investment Management Corp. added | 217,786 | $6M | 4.3% | 2026-Q2 |
| Chicago Partners Investment Group LLC added | 196,857 | $6M | 4.0% | 2026-Q2 |
| Rockefeller Capital Management L.P. added | 202,455 | $6M | 4.0% | 2026-Q2 |
| STIFEL FINANCIAL CORP added | 158,829 | $5M | 3.1% | 2026-Q2 |
| Miller Global Investments, LLC | 113,986 | $3M | 2.2% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 113,469 | $3M | 2.2% | 2026-Q2 |
| Garden State Investment Advisory Services LLC trimmed | 90,325 | $3M | 1.8% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 88,629 | $3M | 1.7% | 2026-Q2 |
| Clear Trail Advisors, LLC added | 62,639 | $2M | 1.2% | 2026-Q2 |
| OSAIC HOLDINGS, INC. added | 43,351 | $1M | 0.8% | 2026-Q2 |
| Wealthcare Advisory Partners LLC added | 43,259 | $1M | 0.8% | 2026-Q2 |
| OPPENHEIMER & CO INC added | 28,879 | $833K | 0.6% | 2026-Q2 |
| OLD MISSION CAPITAL LLC added | 26,186 | $755K | 0.5% | 2026-Q2 |
| Tandem Financial, LLC trimmed | 25,103 | $729K | 0.5% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 24,721 | $713K | 0.5% | 2026-Q2 |
| Steward Partners Investment Advisory, LLC trimmed | 19,772 | $570K | 0.4% | 2026-Q2 |
| SHEPHERD KAPLAN KROCHUK, LLC trimmed | 17,468 | $504K | 0.3% | 2026-Q2 |
| SILVER OAK SECURITIES, INCORPORATED added | 15,912 | $459K | 0.3% | 2026-Q2 |
| Tactive Advisors, LLC added | 12,486 | $360K | 0.2% | 2026-Q2 |
| Avidian Wealth Enterprises, LLC trimmed | 11,545 | $333K | 0.2% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 9,535 | $275K | 0.2% | 2026-Q2 |
| Beacon Pointe Advisors, LLC new | 8,800 | $254K | 0.2% | 2026-Q2 |
| Equitable Holdings, Inc. new | 7,009 | $202K | 0.1% | 2026-Q2 |
| Founders Financial Alliance, LLC | 5,656 | $163K | 0.1% | 2026-Q2 |
| Parallel Advisors, LLC | 5,600 | $161K | 0.1% | 2026-Q2 |
| CHILTON CAPITAL MANAGEMENT LLC new | 2,000 | $58K | 0.0% | 2026-Q2 |
| PRIVATE TRUST CO NA added | 726 | $21K | 0.0% | 2026-Q2 |
| JPMORGAN CHASE & CO new | 462 | $13K | 0.0% | 2026-Q2 |
| Allworth Financial LP new | 462 | $13K | 0.0% | 2026-Q2 |
| Key Financial Inc new | 150 | $4K | 0.0% | 2026-Q2 |
| SIMPLEX TRADING, LLC new | 10 | $288 | 0.0% | 2026-Q2 |
| Janney Montgomery Scott LLC trimmed | 173,237 | $5M | 3.4% | 2026-Q1 stale (1 quarter behind) |
| Cambridge Investment Research Advisors, Inc. added | 29,053 | $831K | 0.6% | 2026-Q1 stale (1 quarter behind) |
| CITADEL ADVISORS LLC added | 19,374 | $525K | 0.4% | 2025-Q2 stale (4 quarters behind) |
| TWO SIGMA SECURITIES, LLC new | 7,536 | $201K | 0.1% | 2025-Q3 stale (3 quarters behind) |
| UBS Group AG new | 757 | $22K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Advisory Services Network, LLC new | 557 | $15K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| BESSEMER GROUP INC | 500 | $14K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| GPS Wealth Strategies Group, LLC new | 250 | $7K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Sunbelt Securities, Inc. new | 200 | $6K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| AE Wealth Management LLC new | 159 | $5K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale (4 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.