Who owns Bluerock Acquisition Corp. Class A Ordinary Shares (BLRK)
Which tracked institutional funds hold BLRK, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BLRK company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-08-14). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
10 tracked funds added or opened BLRK while 6 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
BLRK’s largest tracked holder by dollar value, Magnetar Financial LLC, sizes it at 0.1% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in BLRK divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 49 tracked filers holding BLRK, 13 increased or opened the position and 13 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in BLRK between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 8
- MILLENNIUM MANAGEMENT LLC$6M
- MMCAP International Inc. SPC$4M
- RLH Capital LLC$3M
- Quarry LP$2M
- Cable Car Capital, LP$998K
- TIG Advisors, LLC$998K
Full exits 4
- Mint Tower Capital Management B.V.$6M
- TENOR CAPITAL MANAGEMENT Co., L.P.$4M
- GLAZER CAPITAL, LLC$4M
- METEORA CAPITAL, LLC$3M
Largest adds
- WOLVERINE ASSET MANAGEMENT LLC$618K
- Kryger Capital LLC$317K
Largest trims
- Shaolin Capital Management LLC$326K
- Clear Street Group Inc.$280K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Magnetar Financial LLC | 799,992 | $8M | 5.2% | 2026-Q2 |
| AQR Arbitrage LLC added | 750,338 | $7M | 4.9% | 2026-Q2 |
| Linden Advisors LP | 750,000 | $7M | 4.9% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC new | 600,000 | $6M | 3.9% | 2026-Q2 |
| ARISTEIA CAPITAL, L.L.C. | 510,610 | $5M | 3.3% | 2026-Q2 |
| PICTON MAHONEY ASSET MANAGEMENT | 500,000 | $5M | 3.3% | 2026-Q2 |
| Polar Asset Management Partners Inc. | 500,000 | $5M | 3.3% | 2026-Q2 |
| Alberta Investment Management Corp | 500,000 | $5M | 3.3% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 499,998 | $5M | 3.3% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS | 465,969 | $5M | 3.1% | 2026-Q2 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 450,000 | $4M | 3.0% | 2026-Q2 |
| WOLVERINE ASSET MANAGEMENT LLC added | 420,170 | $4M | 2.8% | 2026-Q2 |
| Wealthspring Capital LLC trimmed | 418,888 | $4M | 2.7% | 2026-Q2 |
| Radcliffe Capital Management, L.P. | 400,431 | $4M | 2.6% | 2026-Q2 |
| Periscope Capital Inc. | 400,000 | $4M | 2.6% | 2026-Q2 |
| MMCAP International Inc. SPC new | 400,000 | $4M | 2.6% | 2026-Q2 |
| Verition Fund Management LLC | 350,000 | $3M | 2.3% | 2026-Q2 |
| L1 Global Manager Pty Ltd | 350,000 | $3M | 2.3% | 2026-Q2 |
| Hudson Bay Capital Management LP | 349,998 | $3M | 2.3% | 2026-Q2 |
| First Trust Capital Management L.P. | 333,039 | $3M | 2.2% | 2026-Q2 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 299,997 | $3M | 2.0% | 2026-Q2 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 300,000 | $3M | 2.0% | 2026-Q2 |
| Kryger Capital LLC added | 275,382 | $3M | 1.8% | 2026-Q2 |
| RLH Capital LLC new | 275,000 | $3M | 1.8% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP | 271,875 | $3M | 1.8% | 2026-Q2 |
| Context Capital Management, LLC | 250,000 | $2M | 1.6% | 2026-Q2 |
| WHITEBOX ADVISORS LLC | 218,525 | $2M | 1.4% | 2026-Q2 |
| Shaolin Capital Management LLC trimmed | 215,325 | $2M | 1.4% | 2026-Q2 |
| Quarry LP new | 175,000 | $2M | 1.1% | 2026-Q2 |
| Clear Street Group Inc. trimmed | 163,875 | $2M | 1.1% | 2026-Q2 |
| SONA ASSET MANAGEMENT (US) LLC | 150,000 | $1M | 1.0% | 2026-Q2 |
| MOORE CAPITAL MANAGEMENT, LP | 150,000 | $1M | 1.0% | 2026-Q2 |
| Lineage Point Capital LP | 144,000 | $1M | 0.9% | 2026-Q2 |
| GRITSTONE ASSET MANAGEMENT LLC | 125,000 | $1M | 0.8% | 2026-Q2 |
| Cable Car Capital, LP new | 100,002 | $998K | 0.7% | 2026-Q2 |
| TIG Advisors, LLC new | 100,000 | $998K | 0.7% | 2026-Q2 |
| HEIGHTS CAPITAL MANAGEMENT, INC | 100,000 | $998K | 0.7% | 2026-Q2 |
| BERKLEY W R CORP | 99,108 | $989K | 0.7% | 2026-Q2 |
| Karpus Management, Inc. | 85,000 | $848K | 0.6% | 2026-Q2 |
| MIZUHO SECURITIES USA LLC new | 69,267 | $689K | 0.5% | 2026-Q2 |
| Arax Advisory Partners new | 56,796 | $567K | 0.4% | 2026-Q2 |
| DELTEC ASSET MANAGEMENT LLC | 49,950 | $499K | 0.3% | 2026-Q2 |
| ABC ARBITRAGE SA trimmed | 35,000 | $349K | 0.2% | 2026-Q2 |
| StoneX Group Inc. new | 30,001 | $299K | 0.2% | 2026-Q2 |
| Crossingbridge Advisors, LLC trimmed | 30,000 | $299K | 0.2% | 2026-Q2 |
| Centiva Capital, LP | 25,000 | $250K | 0.2% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC | 10,001 | $100K | 0.1% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD | 10,000 | $100K | 0.1% | 2026-Q2 |
| MORGAN STANLEY added | 30 | $299 | 0.0% | 2026-Q2 |
| Mint Tower Capital Management B.V. new | 650,000 | $6M | 4.2% | 2026-Q1 stale (1 quarter behind) |
| TENOR CAPITAL MANAGEMENT Co., L.P. new | 400,000 | $4M | 2.6% | 2026-Q1 stale (1 quarter behind) |
| GLAZER CAPITAL, LLC new | 353,732 | $4M | 2.3% | 2026-Q1 stale (1 quarter behind) |
| METEORA CAPITAL, LLC new | 261,053 | $3M | 1.7% | 2026-Q1 stale (1 quarter behind) |
| Virtu Financial LLC new | 13,815 | $137K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Kepos Capital LP new | 7,500 | $74K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| ROYAL BANK OF CANADA new | 5,000 | $50K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| UBS Group AG new | 4,047 | $40K | 0.0% | 2026-Q1 stale (1 quarter behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.