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TWO SIGMA SECURITIES, LLC

Broker-Dealer

Position in BLK — BlackRock, Inc.

CIK 1450144 NEW YORK, NY

Position in BLK

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$593,375
-$589,350 QoQ
Shares Held
617
-44.2% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.11%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2024
3 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in BLK Over Time

Shares Held

Position Value (USD)

Derivatives in BLK

reported options exposure · as of Dec 31, 2024
CallValue
$410,044
CallShares
400
PutValue
$205,022
PutShares
200

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Asset Management

Financial Services · as of Mar 31, 2026

TWO SIGMA SECURITIES, LLC holds $17,541,705 across 65 Asset Management names. BLK ranks #8 (3.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 BLK
BlackRock, Inc.
This page
617 $593,375

All Filings in BLK

Export CSV
5 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $593,375 617
2025-12-31 $1,182,725 1,105
2024-12-31 $410,044 400
2024-12-31 $1,554,066 1,516
2024-12-31 $205,022 200