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Parallax Volatility Advisers, L.P.

Position in BLK — BlackRock, Inc.

CIK 1521001 San Francisco, CA

Position in BLK

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$0
+$0 QoQ
Shares Held
0
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2024
7 quarters on record

Common Shares in BLK Over Time

Shares Held

Position Value (USD)

Derivatives in BLK

reported options exposure · as of Jun 30, 2026
CallValue
$19,423,512
CallShares
20,200
PutValue
$384,624
PutShares
400

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 Jun 30, 2026

Parallax Volatility Advisers, L.P. holds $34,392,460 across 7 Asset Management names.

# Ticker Company Shares Value (USD) Open

All Filings in BLK

Export CSV
18 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $384,624 400
2026-06-30 $19,423,512 20,200
2026-03-31 $1,634,907 1,700
2026-03-31 $19,907,397 20,700
2025-12-31 $8,776,788 8,200
2025-12-31 $107,034 100
2025-12-31 $7,119,901 6,652
2025-09-30 $8,669,409 7,436
2025-09-30 $233,174 200
2025-09-30 $932,696 800
2025-06-30 $61,905,750 59,000
2025-06-30 $16,158,450 15,400
2025-03-31 $3,313,626 3,501
2025-03-31 $8,234,376 8,700
2025-03-31 $567,888 600
2024-12-31 $18,022,458 17,581
2024-12-31 $13,531,452 13,200
2024-12-31 $6,253,171 6,100