Institutional Manager · CIK 0002003159
Brummer Multi-Strategy AB
STOCKHOLM, V7 · File #028-23818
Latest AUM
$16.5M
Positions
11
Top-10 Concentration
99.8%
Filings
8
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| NEW | THE CIGNA GROUP | 125523100 | +11,818 | +$3.3M | $0 |
| NEW | ARVINAS INC | ARVN | +166,342 | +$2.0M | $0 |
| NEW | ABIVAX SA | AAVXF | +14,375 | +$1.9M | $0 |
| NEW | IQVIA HLDGS INC | IQV | +8,183 | +$1.8M | $0 |
| NEW | MARAVAI LIFESCIENCES HLDGS I | MARA | +457,707 | +$1.5M | $0 |
| EXITED | PTC THERAPEUTICS INC | 69366J200 | -19,142 | -$1.2M | $0 |
| NEW | ATAI BECKLEY NV | N0731H103 | +234,915 | +$960,802 | $0 |
| ADD | BECTON DICKINSON & CO | BDX | +4,706 | +$913,293 | +$3,243 |
| EXITED | COLLIERS INTL GROUP INC | 194693107 | -4,426 | -$691,385 | $0 |
| NEW | SOLENO THERAPEUTICS INC | SLNO | +8,741 | +$404,708 | $0 |
Sector Allocation
Filing History
- 13F COMBINATION REPORTQ/E Dec 202511 pos · $16.5M
- 13F COMBINATION REPORTQ/E Sep 20254 pos · $5.5M
- 13F NOTICEQ/E Jun 20250 pos · $0
- 13F NOTICEQ/E Mar 20250 pos · $0
- 13F NOTICEQ/E Dec 20240 pos · $0
- 13F NOTICEQ/E Sep 20240 pos · $0
- 13F NOTICEQ/E Jun 20240 pos · $0
- 13F COMBINATION REPORTQ/E Mar 20241 pos · $4.6M
Top 11 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | NEWMARK GROUP INC | NMRK | 200,493 | $3.5M | 21.01% |
| 2 | THE CIGNA GROUP | 125523100 | 11,818 | $3.3M | 19.66% |
| 3 | ARVINAS INC | ARVN | 166,342 | $2.0M | 11.93% |
| 4 | ABIVAX SA | AAVXF | 14,375 | $1.9M | 11.72% |
| 5 | IQVIA HLDGS INC | IQV | 8,183 | $1.8M | 11.15% |
| 6 | MARAVAI LIFESCIENCES HLDGS I | MARA | 457,707 | $1.5M | 8.99% |
| 7 | BECTON DICKINSON & CO | BDX | 5,176 | $1.0M | 6.07% |
| 8 | ATAI BECKLEY NV | N0731H103 | 234,915 | $960,802 | 5.81% |
| 9 | SOLENO THERAPEUTICS INC | SLNO | 8,741 | $404,708 | 2.45% |
| 10 | KLOTHO NEUROSCIENCES INC | 49876K103 | 606,757 | $175,353 | 1.06% |
| 11 | FOGHORN THERAPEUTICS INC | FHTX | 4,708 | $25,423 | 0.15% |