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JANE STREET GROUP, LLC

Position in BLK — BlackRock, Inc.

CIK 1595888 NEW YORK, NY

Position in BLK

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$66,030,046
-$101,440,701 QoQ
Shares Held
68,659
-56.1% QoQ
Ownership
0.021%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2024
6 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 Mar 31, 2026
CallValue
$61,260,927
CallShares
63,700
PutValue
$269,567,313
PutShares
280,300

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

JANE STREET GROUP, LLC holds $1,135,971,727 across 232 Asset Management names. BLK ranks #6 (5.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
6 BLK
BlackRock, Inc.
This page
68,659 $66,030,046

All Filings in BLK

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17 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $66,030,046 68,659
2026-03-31 $269,567,313 280,300
2026-03-31 $61,260,927 63,700
2025-12-31 $150,382,770 140,500
2025-12-31 $167,470,747 156,465
2025-12-31 $54,587,340 51,000
2025-09-30 $75,781,550 65,000
2025-09-30 $120,201,197 103,100
2025-09-30 $127,723,390 109,552
2025-06-30 $45,012,825 42,900
2025-06-30 $272,805,000 260,000
2025-03-31 $174,158,944 184,007
2025-03-31 $137,523,544 145,300
2025-03-31 $13,440,016 14,200
2024-12-31 $47,023,845 45,872
2024-12-31 $128,753,816 125,600
2024-12-31 $37,314,004 36,400