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Equibles

JANE STREET GROUP, LLC

Position in WLK — Westlake Corp

CIK 1595888 NEW YORK, NY
Back to WLK Full portfolio

Position in WLK

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$12,346,238
+$12,346,238 QoQ
Shares Held
105,686
Ownership
0.082%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in WLK Over Time

Shares Held

Position Value (USD)

Derivatives in WLK

reported options exposure · as of Mar 31, 2026
CallValue
$1,600,434
CallShares
13,700
PutValue
$1,705,572
PutShares
14,600

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 Specialty Chemicals

Basic Materials · as of Mar 31, 2026

JANE STREET GROUP, LLC holds $731,419,141 across 43 Specialty Chemicals names. WLK ranks #8 (1.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 DD
DuPont de Nemours, Inc.
 1,779,661 $244,525,420
2 SOLS
Solstice Advanced Materials Inc.
 3,036,168 $231,234,554
3 PPG
Ppg Industries Inc
 539,820 $57,695,960
4 BCPC
Balchem Corp
 98,177 $16,639,037
5 WDFC
Wd 40 Co
 80,221 $16,360,270
6 SQM
Chemical & Mining Co Of Chile Inc
 197,883 $16,016,649
7 LIN
Linde PLC
 32,104 $15,915,878
8 WLK
Westlake Corp
This page 		105,686 $12,346,238

All Filings in WLK

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $12,346,238 105,686
2026-03-31 $1,600,434 13,700
2026-03-31 $1,705,572 14,600
2025-12-31 $1,700,620 23,000
2025-12-31 $38,737,166 523,900
2025-09-30 $4,299,948 55,800
2025-09-30 $1,000,392 12,982
2025-09-30 $1,441,022 18,700
2025-06-30 $2,608,727 34,357
2025-06-30 $280,941 3,700
2025-06-30 $1,298,403 17,100
2025-03-31 $8,596,577 85,940
2025-03-31 $6,141,842 61,400
2024-12-31 $206,370 1,800
2024-12-31 $880,970 7,684
2024-12-31 $1,008,920 8,800
2024-09-30 $9,813,937 65,300
2024-09-30 $571,102 3,800
2024-09-30 $5,957,043 39,637
2024-06-30 $31,688,208 218,811
2024-03-31 $1,302,314 8,523
2023-12-31 $1,282,173 9,161
2023-09-30 $4,208,483 33,757
2023-06-30 $895,665 7,497
2023-03-31 $1,403,357 12,100
2022-12-31 $586,118 5,716
2022-09-30 $5,746,242 66,140
2022-06-30 $409,232 4,175
2022-03-31 $10,451,980 84,700
2022-03-31 $2,134,820 17,300
2022-03-31 $2,613,365 21,178
2021-12-31 $622,408 6,408
2021-12-31 $1,612,358 16,600
2021-12-31 $4,128,025 42,500
2021-09-30 $2,606,604 28,600
2021-09-30 $4,010,160 44,000
2021-09-30 $2,749,329 30,166
2021-06-30 $1,252,251 13,900
2021-06-30 $2,362,879 26,228
2021-06-30 $819,819 9,100
2021-03-31 $1,225,302 13,800
2021-03-31 $1,083,238 12,200
2021-03-31 $321,507 3,621
2020-12-31 $1,468,800 18,000
2020-12-31 $832,320 10,200
2020-12-31 $440,476 5,398
2020-09-30 $1,169,570 18,500
2020-09-30 $246,558 3,900
2020-06-30 $4,100,523 76,431
2020-06-30 $214,600 4,000

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