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Optiver Holding B.V.

Position in OSG — Octave Specialty Group Inc

CIK 1859606 AMSTERDAM, P7

Position in OSG

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$1,543
-$1,335 QoQ
Shares Held
332
-10.3% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2025
3 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in OSG Over Time

Shares Held

Position Value (USD)

Position in Insurance - Specialty

Financial Services · as of Mar 31, 2026

Optiver Holding B.V. holds $61,768 across 9 Insurance - Specialty names. OSG ranks #7 (2.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 OSG
Octave Specialty Group Inc
This page
332 $1,543

All Filings in OSG

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3 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $1,543 332
2025-12-31 $2,878 370
2025-09-30 $3,536 424