Brummer Multi-Strategy AB

In its 13F for Q3 2025 (holdings as of September 30, 2025, filed November 10, 2025), Brummer Multi-Strategy AB reported 4 stock positions worth $5.5 million. Its top holding was Newmark Class A (NMRK) at 64.4% of the portfolio, followed by PTC Therapeutics (PTCT, 21.4%) and Colliers Intl GR-Subord Vot (CIGI, 12.6%).

Most Recent 13F
Q2 2026
Location
STOCKHOLM, V7
CIK
0002003159
Portfolio Value
$5.5M (Q3 2025)
SEC Filing
0002003159-25-000009 ↗ filed Nov 10, 2025

Holdings Value

0$5.0M$10.0M$15.0M$20.0M$25.0M Q1 2024: $4.6M Q1 2024 Q3 2025: $5.5M $5.5M Q3 2025 Q4 2025: $16.5M Q4 2025 Q1 2026: $24.0M Q1 2026 Q2 2026: $1.2M Q2 2026

Holdings 4 stocks · $5.5M
NMRK Newmark Group Inc. Class A 64.40% 189,519 $3.5M —
PTCT PTC Therapeutics Inc. 21.40% 19,142 $1.2M —
CIGI Colliers Intl GR-Subord Vot 12.60% 4,426 $691K —
BDX Becton Dickinson and Co. 1.60% 470 $88K —

Portfolio Sells Q3 2025

No earlier filing to compare with.

Portfolio Buys Q3 2025

No earlier filing to compare with.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 1$1.2MNMRK
Q1 2026 8$24.0MCBRE, ADC, ARVN, ABVX, MRVI
Q4 2025 11$16.5MNMRK, CI, ARVN, ABVX, IQV
Q3 2025 4$5.5MNMRK, PTCT, CIGI, BDX
Q1 2024 1$4.6MGEHC