% 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 IMB.L 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 | Pacer Advisors, Inc. | 1,218,6981.2M | $54M | — | ADD 23% |
| 2 | PARADIGM ASSET MANAGEMENT CO LLC | 2,3792,379 | $95,904 | — | — |
Ranked by each filer’s own reported value, not shares.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| Pacer Advisors, Inc. | +225,463 | $698M | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| No filer reduced its position this quarter. | |||
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 |
|---|---|---|---|---|---|---|---|
| Pacer Advisors, Inc. | 935K | 912K | 946K | 969K | 993K | 1.2M | $54M |
| PARADIGM ASSET MANAGEMENT CO LLC | 2K | 2K | 2K | 2K | 2K | 2K | $95,904 |
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.