% 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 ATEKW 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 | METEORA CAPITAL, LLC | 96,81496,814 | $1,936 | — | — |
| 2 | Ancora Advisors LLC | 2,5002,500 | $50 | — | — |
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 |
|---|---|---|---|---|---|---|---|
| METEORA CAPITAL, LLC | — | — | — | 42K | 97K | 97K | $1,936 |
| Ancora Advisors LLC | 3K | 3K | 3K | 3K | 3K | 3K | $50 |
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 | 2 | 99,314 | — | $1,986 |
| 2025-Q4 | 2 | 99,314 |
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 | |
|---|---|---|---|
| No filer reduced its position this quarter. | |||
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 quarter-end close — rather than differencing two filings' own reported values, which would mix the quarter's price move into the trade figure. No licensed quarter-end close is stored for this line, so the dollar columns are withheld; share counts stand.
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).
| — |
| $1,986 |
| 2025-Q3 | 2 | 44,100 | — | $1,190 |
| 2025-Q2 | 1 | 2,500 | — | $100 |
| 2025-Q1 | 2 | 21,318 | — | $319 |
| 2024-Q4 | 7 | 1,406,723 | — | $53,934 |
| 2024-Q3 | 31 | 8,401,226 | — | $6M |
| 2024-Q2 | 34 | 8,720,139 | — | $6M |
| 2024-Q1 | 33 | 9,318,056 | — | $6M |
| 2023-Q4 | 36 | 9,814,806 | — | $6M |
| 2023-Q3 | 36 | 10,224,056 | — | $6M |
| 2023-Q2 | 39 | 10,322,901 | — | $6M |
| 2023-Q1 | 38 | 10,608,993 | — | $8M |
| 2022-Q4 | 40 | 10,544,096 | — | $11M |
| 2022-Q3 | 26 | 9,923,640 | — | $5M |
| 2022-Q2 | 33 | 8,756,922 | — | $8M |
| 2022-Q1 | 30 | 8,054,921 | — | $6M |
