iShares Bitcoin Trust ETF (Nasdaq: IBIT), an SEC filer in Commodity Contracts Brokers & Dealers, closed at $43.90, -3.1%, on 2026-08-28. Institutional ownership, earnings history and filed financials are on the tabs below.
% of shares outstanding is not shown for IBIT: this is a fund line, and we hold no cover-page share count for it at any quarter — a fund's shares outstanding move with creations and redemptions rather than with issuance and buybacks, and it is not the SEC cover-page count this percentage is defined against. The figure is withheld rather than computed against a count that does not exist. 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 IBIT in the served universe — that lands with the next screener build.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | Brevan Howard Capital Management LP | 24,304,78824.3M | $934M | — | ADD 338% |
| 2 | MILLENNIUM MANAGEMENT LLC | 19,287,31819.3M | $741M | — | TRIM -44% |
| 3 | Avenir Tech Ltd | 18,276,10018.3M | $702M | — | — |
| 4 | GOLDMAN SACHS GROUP INC | 17,985,05118.0M | $691M | — | TRIM -13% |
| 5 | MORGAN STANLEY | 17,263,77817.3M | $663M | — | ADD 28% |
| 6 | Mubadala Investment Co PJSC | 14,721,91714.7M | $566M | — | ADD 16% |
| 7 | BlackRock, Inc. | 14,009,30414.0M | $538M | — | ADD 10% |
| 8 | Abu Dhabi Investment Council Co P.J.S.C | 8,218,7128.2M | $316M | — | NEW |
| 9 | JPMORGAN CHASE & CO | 8,302,6918.3M | $313M | — | ADD 174% |
| 10 | Galaxy Digital Inc. | 7,464,0767.5M | $287M | — | NEW |
Ranked by each filer’s own reported value, not shares.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| Brevan Howard Capital Management LP | +18,756,030 | $721M | ADD |
| Abu Dhabi Investment Council Co P.J.S.C | +8,218,712 | $316M | OPEN |
| Galaxy Digital Inc. | +7,464,076 | $287M | OPEN |
| JPMORGAN CHASE & CO | +5,275,077 | $203M | ADD |
| MORGAN STANLEY | +3,823,119 | $147M | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| MILLENNIUM MANAGEMENT LLC | −15,046,206 | $578M | TRIM |
| JANE STREET GROUP, LLC | −14,443,568 | $555M | TRIM |
| Capula Management Ltd | −9,481,233 | $364M | CLOSE |
| Al Warda Investments RSC Ltd | −8,218,712 | $316M | CLOSE |
| Galaxy Group Investments LLC | −6,090,206 | $234M | 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 |
|---|---|---|---|---|---|---|---|
| Brevan Howard Capital Management LP | 25.6M | 21.6M | 37.5M | 36.8M | 5.5M | 24.3M | $934M |
| MILLENNIUM MANAGEMENT LLC | 29.9M | 17.6M | 21.4M | 20.5M | 34.3M | 19.3M | $741M |
| Avenir Tech Ltd | 11.3M | 14.8M | 16.6M | 18.3M | 18.3M | 18.3M | $702M |
| GOLDMAN SACHS GROUP INC | 24.1M | 23.4M | 25.6M | 34.0M | 20.7M | 18.0M | $691M |
| MORGAN STANLEY | 4.9M | 5.0M | 8.0M | 11.1M | 13.4M | 17.3M | $663M |
| Mubadala Investment Co PJSC | 8.2M | 8.7M | 8.7M | 8.7M | 12.7M | 14.7M | $566M |
| BlackRock, Inc. | 2.6M | 5.9M | 7.9M | 10.4M | 12.8M | 14.0M | $538M |
| Abu Dhabi Investment Council Co P.J.S.C | — | — | — | — | — | 8.2M | $316M |
| JPMORGAN CHASE & CO | 5K | 264K | 3.2M | 10.6M | 3.0M | 8.3M | $313M |
| Galaxy Digital Inc. | — | — | — | — | — | 7.5M | $287M |
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.
