% 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 BORT in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | Cutler Capital Management, LLC | 122,465122,465 | $6M | — | ADD 10% |
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 |
|---|---|---|---|---|---|---|---|
| Cutler Capital Management, LLC | 104K | 104K | 113K | 110K | 111K | 122K | $6M |
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 | |
|---|---|---|---|
| Cutler Capital Management, LLC | +11,431 | $537,257 | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| BANC FUNDS CO LLC | −16,504 | $775,688 | 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 | 1 | 122,465 | — | $6M |
| 2025-Q4 | 2 | 127,538 | — | $6M |
| 2025-Q3 | 2 | 126,788 | — | $5M |
| 2025-Q2 | 2 | 129,178 | — | $5M |
| 2025-Q1 | 2 | 135,098 | — | $5M |
| 2024-Q4 | 2 | 141,098 | — | $5M |
| 2024-Q3 | 2 | 141,598 | — | $5M |
| 2024-Q2 | 2 | 141,598 | — | $4M |
| 2024-Q1 | 2 | 144,598 | — | $4M |
| 2023-Q4 | 2 | 153,668 | — | $4M |
| 2023-Q3 | 2 | 150,968 | — | $4M |
| 2023-Q2 | 2 | 150,468 | — | $4M |
| 2023-Q1 | 2 | 150,168 | — | $5M |
| 2022-Q4 | 2 | 149,118 | — | $4M |
| 2022-Q3 | 2 | 149,024 | — | $4M |
| 2022-Q2 | 3 | 153,844 | — | $4M |
| 2022-Q1 | 3 | 153,844 | — | $4M |
| 2021-Q4 | 3 | 148,174 | — | $4M |
| 2021-Q3 | 3 | 131,305 | — | $4M |
| 2021-Q2 | 3 | 131,305 | — | $4M |
| 2021-Q1 | 3 | 128,312 | — | $4M |
| 2020-Q4 | 3 | 129,705 | — | $3M |
| 2020-Q3 | 3 | 129,705 | — | $3M |
| 2020-Q2 | 3 | 128,805 | — | $3M |
| 2020-Q1 | 2 | 127,005 | — | $3M |
| 2019-Q4 | 2 | 124,005 | — | $4M |
| 2019-Q3 | 3 | 127,905 | — | $4M |
| 2019-Q2 | 3 | 122,234 | — | $3M |
| 2019-Q1 | 3 | 122,234 | — | $3M |
| 2018-Q4 | 3 | 207,234 | — | $6M |
| 2018-Q3 | 1 | 3,900 | — | $113,000 |
