% of shares outstanding not shown: no SEC cover-page share count falls within 120 days of the 2026-Q1 quarter end, so any percentage would rest on a count that cannot speak for this quarter. Holder share counts are shown as filed.
Crowding percentile withheld — no market cap for QNTM in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
Ranked by each filer’s own reported value, not shares.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| AdvisorShares Investments LLC | +58,958 | $284,767 | ADD |
| Platform Technology Partners | +41,116 | $198,590 | OPEN |
| JANE STREET GROUP, LLC | +20,609 | $99,541 | ADD |
| Mariner, LLC | +10,059 | $48,585 | OPEN |
| UBS Group AG | +5,527 | $26,695 | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| GTS SECURITIES LLC | −12,300 | $59,409 | CLOSE |
| TUCKER ASSET MANAGEMENT LLC | −1,114 | $5,381 | CLOSE |
| JPMORGAN CHASE & CO | −577 | $2,787 | CLOSE |
| MORGAN STANLEY | −243 | $1,174 | CLOSE |
| ROYAL BANK OF CANADA | −36 | $174 | 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 |
|---|---|---|---|---|---|---|---|
| AdvisorShares Investments LLC | 69K | 49K | 37K | 37K | 96K | 155K | $524,495 |
| Platform Technology Partners | — | — | — | — | — | 41K | $198,590 |
| JANE STREET GROUP, LLC | — | — | — | — | 11K | 32K | $152,149 |
| CITADEL ADVISORS LLC | — | — | — | — | 16K | 16K | $76,618 |
| Marex Group plc | — | — | — | 13K | 13K | 13K | $65,050 |
| Virtu Financial LLC | — | — | 17K | — | 10K | 12K | $59,000 |
| Mariner, LLC | — | — | — | — | — | 10K | $48,553 |
| UBS Group AG | — | 2K | 46K | 9K | 2K | 7K | $34,955 |
| OSAIC HOLDINGS, INC. | 15 | — | 80 | 680 | 5K | 6K | $30,790 |
| Steward Partners Investment Advisory, LLC | — | — | 3K | 3K | 4K | 4K | $21,160 |
| Atlantic Union Bankshares Corp | — | — | — | — | 1K | 1K | $4,830 |
| Farther Finance Advisors, LLC | — | — | — | — | 1K | 1K | $4,410 |
| JONES FINANCIAL COMPANIES LLLP | — | — | — | — | — | 700 | $3,339 |
| Cetera Trust Company, N.A | — | 250 | 250 | 250 | 250 | 250 | $1,208 |
| WELLS FARGO & COMPANY/MN | — | — | — | — | — | 100 | $477 |
Green = added, red = trimmed, grey = held; a dash is a quarter with no 13F on file — a gap, not an exit.
Holders only — breaks = no 13F.
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.
| Holder | % of class | Type | As of | |
|---|---|---|---|---|
| AdvisorShares Trust | 5.33% | QII | 2026-06-30 | SEC → |
SEC Schedule 13D/G XML · group aggregate.