% 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 JAPSY 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 | RHUMBLINE ADVISERS | 10,16510,165 | $82,538 | — | TRIM -7% |
| 2 | Westside Investment Management, Inc. | 1,0781,078 | $8,947 | — | — |
| 3 | Salomon & Ludwin, LLC | 656656 | $5,445 | — | TRIM -4% |
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 |
|---|---|---|---|---|---|---|---|
| RHUMBLINE ADVISERS | 11K | 11K | 11K | 11K | 11K | 10K | $82,538 |
| Westside Investment Management, Inc. | — | — | — | 1K | 1K | 1K | $8,947 |
| Salomon & Ludwin, LLC | — | — | 13 | 696 | 683 | 656 | $5,445 |
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 | −798 | $6,480 | TRIM |
| Salomon & Ludwin, LLC | −27 | $219 | 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 | 11,899 | — | $96,930 |
| 2025-Q4 | 3 | 12,724 | — | $117,296 |
| 2025-Q3 | 3 | 12,319 | — | $123,373 |
| 2025-Q2 | 3 | 11,547 | — | $117,047 |
| 2025-Q1 | 1 | 11,164 | — | $94,222 |
| 2024-Q4 | 2 | 13,767 | — | $108,758 |
| 2024-Q3 | 2 | 11,462 | — | $99,946 |
| 2024-Q2 | 2 | 10,608 | — | $83,378 |
| 2024-Q1 | 1 | 10,474 | — | $99,135 |
| 2023-Q4 | 1 | 10,474 | — | $101,911 |
| 2023-Q3 | 2 | 11,679 | — | $113,168 |
| 2023-Q2 | 2 | 11,422 | — | $123,700 |
| 2023-Q1 | 1 | 1,098 | — | $10,706 |
| 2022-Q2 | 1 | 4,565 | — | $39,000 |
| 2022-Q1 | 1 | 3,768 | — | $35,000 |
| 2021-Q4 | 1 | 2,353 | — | $22,000 |
| 2021-Q3 | 1 | 3,364 | — | $40,000 |
| 2021-Q2 | 2 | 3,631 | — | $39,000 |
| 2021-Q1 | 4 | 1,963,281 | — | $22M |
| 2020-Q4 | 2 | 1,772,194 | — | $17M |
| 2020-Q3 | 2 | 1,648,115 | — | $15M |
| 2020-Q2 | 3 | 1,807,445 | — | $16M |
| 2020-Q1 | 7 | 1,364,012 | — | $12M |
| 2019-Q4 | 7 | 878,565 | — | $14M |
| 2019-Q3 | 4 | 919,425 | — | $14M |
| 2019-Q2 | 6 | 791,897 | — | $13M |
| 2019-Q1 | 6 | 1,370,163 | — | $24M |
| 2018-Q4 | 4 | 1,324,947 | — | $23M |
| 2018-Q3 | 6 | 1,268,217 | — | $26M |
| 2018-Q2 | 4 | 1,344,386 | — | $24M |
| 2018-Q1 | 5 | 1,293,334 | — | $26M |
| 2017-Q4 | 9 | 1,595,707 | — | $31M |
| 2017-Q3 | 6 | 1,166,380 | — | $20M |
| 2017-Q2 | 6 | 1,084,090 | — | $17M |
| 2017-Q1 | 5 | 1,037,459 | — | $16M |
| 2016-Q4 | 6 | 1,086,435 | — | $16M |
| 2016-Q3 | 7 | 2,385,411 | — | $35M |
| 2016-Q2 | 10 | 2,616,781 | — | $42M |
| 2016-Q1 | 10 | 2,573,373 | — | $47M |
| 2015-Q4 | 3 | 491,529 | — | $9M |
| 2015-Q3 | 2 | 769 | — | $13,000 |
