Brummer Multi-Strategy AB
- SEC CIK
- 0002003159
- Latest filing
- Jul 23, 2026
Holdings changes from Q3 2025 to Q4 2025
Long positions only; new, added, reduced and sold out are based on share counts. Pick any two quarters this institution filed.
- New
- 9
- Est. +$12.1M
- Added
- 2
- Est. +$1.10M
- Reduced
- 0
- Sold out
- 2
- Est. −$1.87M
Portfolio value went from $5.49M to $16.5M (+$11.1M (+201.4%)); positions from 4 to 11 (+7).
All Q4 2025 holdingsAll Q3 2025 holdings
In the shares, value and % of portfolio columns, the top figure is Q4 2025 and the gray one below is Q3 2025. For stocks that split between the two quarters, Q3 2025 shares are converted at the split ratio before comparing.
| Security | Action | Shares | Share change | Value | Est. bought or sold | % of portfolio | Weight change (pp) |
|---|---|---|---|---|---|---|---|
| NMRKNewmark Group, Inc. | AddedHistory | 200,493189,519 | +10,974+5.8% | $3.48M$3.53M | +$190.3K | 21.0%64.4% | −43.38 |
| CICigna Group | NewHistory | 11,8180 | +11,818 | $3.25M$0 | +$3.25M | 19.7%0.0% | +19.66 |
| ARVNArvinas, Inc. | NewHistory | 166,3420 | +166,342 | $1.97M$0 | +$1.97M | 11.9%0.0% | +11.93 |
| ABVXAbivax S.A. | NewHistory | 14,3750 | +14,375 | $1.94M$0 | +$1.94M | 11.7%0.0% | +11.72 |
| IQVIQVIA Holdings Inc. | NewHistory | 8,1830 | +8,183 | $1.84M$0 | +$1.84M | 11.1%0.0% | +11.15 |
| MRVIMaravai Lifesciences Holdings, Inc. | NewHistory | 457,7070 | +457,707 | $1.49M$0 | +$1.49M | 9.0%0.0% | +8.99 |
| BDXBecton Dickinson & Co | AddedHistory | 5,176470 | +4,706+1,001.3% | $1.00M$88.0K | +$913.3K | 6.1%1.6% | +4.47 |
| ATAIAtai Beckley N.V. | NewHistory | 234,9150 | +234,915 | $960.8K$0 | +$960.8K | 5.8%0.0% | +5.81 |
| SLNOSoleno Therapeutics Inc | NewHistory | 8,7410 | +8,741 | $404.7K$0 | +$404.7K | 2.4%0.0% | +2.45 |
| GRMLGreenland Mines Ltd | NewHistory | 606,7570 | +606,757 | $175.4K$0 | +$175.4K | 1.1%0.0% | +1.06 |
| FHTXFoghorn Therapeutics Inc. | NewHistory | 4,7080 | +4,708 | $25.4K$0 | +$25.4K | 0.2%0.0% | +0.15 |
| PTCTPTC Therapeutics, Inc. | Sold outHistory | 019,142 | −19,142−100.0% | $0$1.17M | −$1.17M | 0.0%21.4% | −21.40 |
| CIGIColliers International Group Inc. | Sold outHistory | 04,426 | −4,426−100.0% | $0$691.4K | −$691.4K | 0.0%12.6% | −12.60 |
Estimated amounts multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares): new positions use this quarter's value and sold-out positions last quarter's; positions reported only as principal (PRN) cannot be estimated. 13F shows only quarter-end holdings, not when trades happened or at what price.