Brummer Multi-Strategy AB
Long book
$24.0M
Q1 2026
Positions
8
Top-10 weight
100%
concentration
Last quarter
+15.3%
SPY +14.8%
Turnover
73%
of book per quarter
Strategy in plain words
auto-generated from filingsBrummer Multi-Strategy AB is a diversified fundamental manager, specialised in real_estate (64% of the long book), running a $24.0M US long book across 8 positions.
The portfolio is extremely concentrated — the top 10 positions are almost the whole book. Turnover is high — positions rotate quickly, so individual names matter less than the process. Current anchor positions: CBRE GROUP INC - A, AGREE REALTY CORP, ARVINAS INC, ABIVAX SA-ADR, MARAVAI LIFESCIENCES HLDGS-A.
Over the last 4 quarters its long book ran on average 6.9pp per quarter behind the S&P 500, beating the index in 1 of 4 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
-14.3%
Q3 2025
+0.0%
Q4 2025
-11.2%
Q1 2026
+15.3%
Sector allocation
Real estate 52%
Healthcare 48%
Long book by quarter
What does Brummer Multi-Strategy own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| CBRE CBRE GROUP INC - A | Real estate | 49.8K | $6.7M | 28.1% | New |
| ARVN ARVINAS INC | Healthcare | 285.1K | $3.0M | 12.6% | +71.4% |
| MRVI MARAVAI LIFESCIENCES HLDGS-A | Healthcare | 759.7K | $2.2M | 9.0% | +66.0% |
| ATAI ATAIBECKLEY INC | Healthcare | 275.4K | $975K | 4.1% | New |
| GRML GREENLAND MINES LTD | Healthcare | 370.0K | $122K | 0.5% | -39.0% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 6, 2026 | 8 | $24.0M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 4, 2026 | 11 | $16.5M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 10, 2025 | 4 | $5.5M | canonical | SEC ↗ |
| Q2 2025 | 13F-NT | Aug 14, 2025 | 0 | $0 | SEC ↗ | |
| Q1 2025 | 13F-NT | May 13, 2025 | 0 | $0 | SEC ↗ | |
| Q4 2024 | 13F-NT | Feb 14, 2025 | 0 | $0 | SEC ↗ | |
| Q3 2024 | 13F-NT | Nov 14, 2024 | 0 | $0 | SEC ↗ | |
| Q2 2024 | 13F-NT | Aug 14, 2024 | 0 | $0 | SEC ↗ | |
| Q1 2024 | 13F-HR | May 15, 2024 | 1 | $4.6M | canonical | SEC ↗ |
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