6 tracked 13F filers disclose a position in QUMSU as of the latest SEC 13F filings, a combined $2.6M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Westchester Capital Management, LLC | $1.0M | 100K | —Held | Q1 2026 | |
| 2 | GABELLI & Co INVESTMENT ADVISERS, INC. | $699K | 68K | —Held | Q2 2026 | |
| 3 | GABELLI FUNDS LLC | $591K | 57K | —Held | Q1 2026 | |
| 4 | Clear Street Group Inc. | $239K | 23K | ▲+3.0% Added · +682 sh | Q2 2026 | |
| 5 | JPMORGAN CHASE & CO | $102K | 10K | —Held | Q1 2026 | |
| 6 | UBS Group AG | $5K | 464 | ▲+1.1% Added · +5 sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Company | Co-held by | Combined value |
|---|---|---|
| WARNER BROS DISCOVERY INCWBD | 3 funds | $235.8M |
| ELECTRONIC ARTS INCEA | 3 funds | $213.6M |
| NORFOLK SOUTHERN CORPNSC | 3 funds | $176.5M |
| CHART INDUSTRIES INCGTLS | 3 funds | $175.6M |
| WEBSTER FINANCIAL CORPWBS | 3 funds | $154.6M |
| DIGITALBRIDGE GROUP INCDBRG | 3 funds | $73.1M |
| UNIFIRST CORP/MAUNF | 3 funds | $71.4M |
| PENUMBRA INCPEN | 3 funds | $60.6M |
| JANUS HENDERSON GROUP PLCJHG | 3 funds | $51.9M |
| KENVUE INCKVUE | 3 funds | $35.6M |
| AGRICULTURE & NATURAL SOLUTIANSC | 3 funds | $24.2M |
| GIGCAPITAL8 CORP-AGIW | 3 funds | $18.8M |
Ranked by how many of QUMSU's institutional holders also hold each name, a cross-fund conviction signal.
No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.
| Class | 13F holders | Value held |
|---|---|---|
| QUMSORD SHS | 24 funds | $56.8M |
| QUMSRSPACS | 21 funds | $1.2M |
| QUMSUthis pageUNIT 07/30/2030 | 6 funds | $2.6M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
No filings captured for this ticker in the live stream yet.
Connected entities for QUMSU
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/QUMSU/capital-change-brief"
Use Arkolith's capital_change_brief for QUMSU. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for QUMSU. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.