| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | Mink Brook Asset Management LLC | 613,221613,221 | $11M | — | — |
| 2 | Ancora Advisors LLC | 2,5002,500 | $44,700 | — | — |
| 3 | NBC SECURITIES, INC. | 1,5001,500 | $26,820 | — | — |
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 |
|---|---|---|---|---|---|---|---|
| Mink Brook Asset Management LLC | 516K | 568K | 599K | 608K | 613K | 613K | $11M |
| Ancora Advisors LLC | — | — | 3K | 3K | 3K | 3K | $44,700 |
| NBC SECURITIES, INC. | — | — | 2K | 2K | 2K | 2K | $26,820 |
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.
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 3 | 617,221 | — | $11M |
| 2025-Q4 | 3 | 617,221 | — | $10M |
| 2025-Q3 | 3 | 611,971 | — | $11M |
| 2025-Q2 | 3 | 603,097 | — | $9M |
| 2025-Q1 | 1 | 567,733 | — | $8M |
| 2024-Q4 | 1 | 516,022 | — | $8M |
| 2024-Q2 | 1 | 8,700 | — | $167,040 |
| 2024-Q1 | 1 | 8,700 | — | $158,166 |
| 2023-Q4 | 2 | 9,481 | — | $170,233 |
| 2016-Q1 | 1 | 39,799 | — | $719,139 |
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.
