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S&CO INC

Position in IBKR — Interactive Brokers Group, Inc.

CIK 1082461 BOSTON, MA

Position in IBKR

as of Mar 31, 2026 · filed May 7, 2026
Position Value
$4,230,775
+$174,101 QoQ
Shares Held
63,080
0.0% QoQ
Ownership
0.014%
of shares outstanding
% of Portfolio
0.28%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2024
9 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in IBKR Over Time

Shares Held

Position Value (USD)

Position in Capital Markets

Financial Services · as of Jun 30, 2026

S&CO INC holds $7,104,642 across 1 Capital Markets name.

# Ticker Company Shares Value (USD) Open

All Filings in IBKR

Export CSV
9 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $4,230,775 63,080
2025-12-31 $4,056,674 63,080
2025-09-30 $4,329,525 62,920
2025-06-30 $3,597,217 64,920
2025-03-31 $2,571,612 15,530
2024-12-31 $2,804,636 15,875
2024-09-30 $2,142,660 15,375
2024-06-30 $1,884,975 15,375
2024-03-31 $1,563,940 14,000