% 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 CIBEY 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 | GRACE & WHITE INC /NY | 166,223166,223 | $368,500 | — | — |
| 2 | YOUSIF CAPITAL MANAGEMENT, LLC | 50,29750,297 | $111,503 | — | — |
| 3 | RHUMBLINE ADVISERS | 30,23530,235 | $65,911 | — | TRIM -9% |
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 |
|---|---|---|---|---|---|---|---|
| GRACE & WHITE INC /NY | 151K | 151K | 151K | 151K | 166K | 166K | $368,500 |
| YOUSIF CAPITAL MANAGEMENT, LLC | 46K | 46K | 46K | 46K | 50K | 50K | $111,503 |
| RHUMBLINE ADVISERS | 38K | 36K | 36K | 32K | 33K | 30K | $65,911 |
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 | |
|---|---|---|---|
| No filer increased its position this quarter. | |||
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| RHUMBLINE ADVISERS | −3,025 | $6,595 | TRIM |
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 | 3 | 246,755 | — | $545,914 |
| 2025-Q4 | 3 | 249,780 | — | $565,595 |
| 2025-Q3 | 3 | 229,102 | — | $478,398 |
| 2025-Q2 | 3 | 232,762 | — | $395,592 |
| 2025-Q1 | 3 | 232,762 | — | $375,887 |
| 2024-Q4 | 3 | 235,166 | — | $358,230 |
| 2024-Q3 | 3 | 237,336 | — | $409,973 |
| 2024-Q2 | 3 | 237,336 | — | $373,496 |
| 2024-Q1 | 3 | 236,954 | — | $394,969 |
| 2023-Q4 | 4 | 248,573 | — | $313,140 |
| 2023-Q3 | 6 | 349,787 | — | $463,464 |
| 2023-Q2 | 6 | 350,114 | — | $402,630 |
| 2023-Q1 | 5 | 249,454 | — | $310,877 |
| 2022-Q4 | 5 | 264,117 | — | $316,416 |
| 2022-Q3 | 5 | 238,938 | — | $289,000 |
| 2022-Q2 | 4 | 188,734 | — | $336,000 |
| 2022-Q1 | 4 | 169,247 | — | $428,000 |
| 2021-Q4 | 3 | 165,703 | — | $537,000 |
| 2021-Q3 | 2 | 135,309 | — | $368,000 |
| 2021-Q2 | 2 | 101,484 | — | $337,000 |
| 2021-Q1 | 3 | 1,240,363 | — | $5M |
| 2020-Q4 | 3 | 994,006 | — | $4M |
| 2020-Q3 | 3 | 962,359 | — | $4M |
| 2020-Q2 | 3 | 679,133 | — | $3M |
| 2020-Q1 | 4 | 675,217 | — | $2M |
| 2019-Q4 | 6 | 705,562 | — | $4M |
| 2019-Q3 | 6 | 559,848 | — | $3M |
| 2019-Q2 | 6 | 381,419 | — | $2M |
| 2019-Q1 | 7 | 405,040 | — | $2M |
| 2018-Q4 | 5 | 262,663 | — | $1M |
| 2018-Q3 | 5 | 310,067 | — | $1M |
| 2018-Q2 | 4 | 311,841 | — | $2M |
| 2018-Q1 | 4 | 267,488 | — | $1M |
| 2017-Q4 | 4 | 287,738 | — | $1M |
| 2017-Q3 | 5 | 296,159 | — | $1M |
| 2017-Q2 | 6 | 308,064 | — | $1M |
| 2017-Q1 | 6 | 308,887 | — | $1M |
| 2016-Q4 | 5 | 298,857 | — | $1M |
| 2016-Q3 | 5 | 276,912 | — | $1M |
| 2016-Q2 | 6 | 293,237 | — | $1M |
| 2016-Q1 | 6 | 349,135 | — | $1M |
| 2015-Q4 | 8 | 342,999 | — | $1M |
| 2015-Q3 | 7 | 181,842 | — | $1M |
| 2015-Q2 | 8 | 233,086 | — | $2M |
| 2015-Q1 | 6 | 222,719 | — | $2M |
| 2014-Q4 | 5 | 156,234 | — | $1M |
| 2014-Q3 | 5 | 99,882 | — | $684,000 |
| 2014-Q2 | 3 | 100,157 | — | $498,000 |
| 2014-Q1 | 3 | 70,878 | — | $356,000 |
| 2013-Q4 | 4 | 78,080 | — | $356,000 |
| 2013-Q3 | 3 | 52,684 | — | $279,000 |
| 2013-Q2 | 5 | 53,232 | — | $216,000 |
| 2013-Q1 | 2 | 33,443 | — | $144,000 |
