Brummer Multi-Strategy AB

Fundamental diversified ★Signal real_estate specialist (64%) CIK 2003159
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 filings

Brummer 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

$4.6M
Q1 2024
$5.5M
Q3 2025
$16.5M
Q4 2025
$24.0M
Q1 2026

What does Brummer Multi-Strategy own?

Q1 2026 13F
CompanySectorSharesValue% of bookChange
CBRE CBRE GROUP INC - AReal estate49.8K$6.7M28.1%New
ARVN ARVINAS INCHealthcare285.1K$3.0M12.6%+71.4%
MRVI MARAVAI LIFESCIENCES HLDGS-AHealthcare759.7K$2.2M9.0%+66.0%
ATAI ATAIBECKLEY INCHealthcare275.4K$975K4.1%New
GRML GREENLAND MINES LTDHealthcare370.0K$122K0.5%-39.0%

13F filing history

PeriodFormFiledEntriesReported valueFlagsSource
Q1 202613F-HRMay 6, 20268$24.0M canonicalSEC ↗
Q4 202513F-HRFeb 4, 202611$16.5M canonicalSEC ↗
Q3 202513F-HRNov 10, 20254$5.5M canonicalSEC ↗
Q2 202513F-NTAug 14, 20250$0 SEC ↗
Q1 202513F-NTMay 13, 20250$0 SEC ↗
Q4 202413F-NTFeb 14, 20250$0 SEC ↗
Q3 202413F-NTNov 14, 20240$0 SEC ↗
Q2 202413F-NTAug 14, 20240$0 SEC ↗
Q1 202413F-HRMay 15, 20241$4.6M canonicalSEC ↗