Castellum Aktiebolag — Short Positions & Disclosures
Regulatory net short position disclosures over time
As of 16 Apr 2026, 1 institution has disclosed net short positions in Castellum Aktiebolag totalling 1.08% of issued share capital. The largest disclosed short seller is Arrowstreet Capital Limited Partnership at 1.08%. Positions are publicly disclosed under UK FCA rules once they reach or exceed 0.5% of issued share capital.
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Castellum Aktiebolag | Short Positions Over Time
SE0000379190Short positions must be disclosed when they reach or exceed 0.5% of issued share capital.
Current Short Positions
All disclosed positions as of the latest report date
| Holder | Net Short % | Position Date | Position Value |
|---|---|---|---|
Arrowstreet Capital Limited Partnership | 1.08% | 16 Apr 2026 | Locked |
Data source: UK Financial Conduct Authority short position disclosures, plus equivalent disclosures from EU regulators (BaFin, CONSOB, AFM, Finansinspektionen). View FCA short selling rules.
Net short percentage represents the percentage of issued share capital held short. Positions must be publicly disclosed when they reach or exceed the 0.5% regulatory threshold. Read the methodology.