% 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 lands with its cohort — the cohort is size-matched, so it needs a market cap for NAAS in the served universe — that lands with the next screener build.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | 14,43114,431 | $35,067 | — | ADD 7% |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 10,24310,243 | $24,890 | — | NEW |
| 3 | MORGAN STANLEY | 2,0302,030 | $4,933 | — | ADD 871% |
| 4 | UBS Group AG | 458458 | $1,113 | — | ADD 38% |
| 5 | RHUMBLINE ADVISERS | 349349 | $848 | — | ADD 128% |
| 6 | IFP Advisors, Inc | 2424 | $58 | — | — |
| 7 | Farther Finance Advisors, LLC | 22 | $5 | — | — |
| 8 | GROUP ONE TRADING LLC | 11 | $2 | — | TRIM -95% |
Ranked by each filer’s own reported value, not shares.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | +10,243 | $24,890 | OPEN |
| MORGAN STANLEY | +1,821 | $4,425 | ADD |
| CITADEL ADVISORS LLC | +900 | $2,187 | ADD |
| RHUMBLINE ADVISERS | +196 | $476 | ADD |
| UBS Group AG | +127 | $309 | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| GROUP ONE TRADING LLC | −18 | $44 | TRIM |
| Tower Research Capital LLC (TRC) | −6 | $15 | CLOSE |
| CITIGROUP INC | −1 | $2 | CLOSE |
Prior quarter split-rebased · 13Fs are long, US-listed only.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| CITADEL ADVISORS LLC | — | — | — | — | 14K | 14K | $35,067 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | — | — | — | — | 10K | $24,890 |
| MORGAN STANLEY | 2K | 25 | 4 | — | 209 | 2K | $4,933 |
| UBS Group AG | 2K | 117K | 75K | 1K | 331 | 458 | $1,113 |
| RHUMBLINE ADVISERS | 2K | 3K | 631 | 157 | 153 | 349 | $848 |
| IFP Advisors, Inc | — | — | 105 | 129 | 24 | 24 | $58 |
| Farther Finance Advisors, LLC | — | — | — | 2 | 2 | 2 | $5 |
| GROUP ONE TRADING LLC | 979 | 979 | 79 | 19 | 19 | 1 | $2 |
Green = added, red = trimmed, grey = held; a dash is a quarter with no 13F on file — a gap, not an exit.
Holders only — breaks = no 13F.
Short interest has its own tab now — open SI →
SEC Form 13F · ~10,250 filers, 10y · long-only, US-listed, filed ≤45d after quarter-end.
SEC Schedule 13D/G XML · group aggregate.