% 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 YMAR 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 |
|---|---|---|---|---|---|---|---|
| BIP Wealth, LLC | — | — | — | — | — | 299K | $8M |
| COMMONWEALTH EQUITY SERVICES, LLC | 242K | 262K | 258K | 256K | 252K | 267K | $7M |
| Spectrum Asset Management, Inc. (NB/CA) | — | — | — | — | — | 251K | $7M |
| RAYMOND JAMES FINANCIAL INC | 431K | 389K | 326K | 319K | 178K | 211K | $6M |
| Legacy Capital Wealth Partners, LLC | 197K | 172K | 165K | 165K | 154K | 160K | $4M |
| OGOREK ANTHONY JOSEPH /NY/ /ADV | — | — | 515K | 515K | 465K | 154K | $4M |
| Cambridge Investment Research Advisors, Inc. | 279K | 253K | 171K | 126K | 120K | 111K | $3M |
| Cetera Investment Advisers | 196K | 190K | 208K | 106K | 102K | 109K | $3M |
| OSAIC HOLDINGS, INC. | 196K | 183K | 262K | 240K | 117K | 99K | $3M |
| LPL Financial LLC | 14K | 32K | 44K | 47K | 50K | 49K | $1M |
| Kestra Advisory Services, LLC | 9K | 9K | 14K | 17K | 26K | 41K | $1M |
| Visionary Wealth Advisors | 58K | 59K | 45K | 45K | 45K | 41K | $1M |
| CITADEL ADVISORS LLC | 31K | 23K | 23K | 40K | — | 32K | $870,812 |
| Ifrah Financial Services, Inc. | 25K | 34K | 34K | 33K | 32K | 31K | $861,255 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | 12K | 10K | 16K | 16K | 16K | 30K | $815,686 |
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.
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 | |
|---|---|---|---|
| BIP Wealth, LLC | +298,593 | $8M | OPEN |
| Spectrum Asset Management, Inc. (NB/CA) | +250,672 | $7M | OPEN |
| RAYMOND JAMES FINANCIAL INC | +32,869 | $899,039 | ADD |
| CITADEL ADVISORS LLC | +31,837 | $870,812 | OPEN |
| Janney Montgomery Scott LLC | +25,000 | $683,805 | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| MGO ONE SEVEN LLC | −355,527 | $10M | CLOSE |
| OGOREK ANTHONY JOSEPH /NY/ /ADV | −311,114 | $9M | TRIM |
| Advisory Services Network, LLC | −50,408 | $1M | TRIM |
| SOA Wealth Advisors, LLC. | −25,531 | $698,329 | TRIM |
| Main Street Financial Solutions, LLC | −23,611 | $645,813 | CLOSE |
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).
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 64 | 2,428,391 | — | $66M |
| 2025-Q4 | 59 | 2,485,591 | — | $67M |
| 2025-Q3 | 63 | 2,959,232 | — | $78M |
| 2025-Q2 | 64 | 3,228,502 | — | $82M |
| 2025-Q1 | 54 | 2,578,437 | — | $62M |
| 2024-Q4 | 58 | 3,279,688 | — | $75M |
| 2024-Q3 | 51 | 2,934,174 | — | $71M |
| 2024-Q2 | 54 | 3,013,028 | — | $70M |
| 2024-Q1 | 42 | 1,970,771 | — | $46M |
| 2023-Q4 | 42 | 2,115,509 | — | $47M |
| 2023-Q3 | 42 | 2,278,987 | — | $46M |
| 2023-Q2 | 41 | 2,577,059 | — | $55M |
| 2023-Q1 | 29 | 1,281,564 | — | $27M |
| 2022-Q4 | 16 | 945,655 | — | $19M |
| 2022-Q3 | 16 | 1,474,294 | — | $27M |
| 2022-Q2 | 17 | 1,834,049 | — | $34M |
| 2022-Q1 | 13 | 1,583,010 | — | $32M |
| 2021-Q4 | 10 | 257,150 | — | $5M |
| 2021-Q3 | 11 | 280,211 | — | $6M |
| 2021-Q2 | 9 | 254,519 | — | $5M |
| 2021-Q1 | 5 | 128,377 | — | $3M |
