Twin Tree Management, LP

Position in CSX — Csx Corp

CIK 1535588 DALLAS, TX

Back to CSX Full portfolio

Position in CSX

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$716,372

+$716,372 QoQ

Shares Held

15,072

Ownership

0.001%

of shares outstanding

% of Portfolio

0.13%

of 13F equity value

Holder Rank

#1,023

of 1,982 holders

Holding Since

Dec 2021

13 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in CSX Over Time

Shares Held

Position Value (USD)

Derivatives in CSX

reported options exposure · as of Mar 31, 2026

CallValue

$1,395,700

CallShares

34,000

PutValue

PutShares

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 Railroads

Industrials · as of Jun 30, 2026

Twin Tree Management, LP holds $4,031,100 across 4 Railroads names. CSX ranks #2 (17.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	UNP	Union Pacific Corp	11,229	$3,054,288
2	CSX	Csx Corp This page	15,072	$716,372
3	CNI	Canadian National Railway Co	2,148	$256,127
4	WAB	Westinghouse Air Brake Technologies Corp	16	$4,313

All Filings in CSX

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18 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$716,372	15,072	-95.7%	Shares	Sole	2026-08-12
2026-03-31	$1,395,700	34,000	-85.1%	Call	Sole	2026-05-14
2025-12-31	$8,294,000	228,800	-69.6%	Call	Sole	2026-02-11
2025-12-31	$351,625	9,700	-89.5%	Put	Sole	2026-02-11
2025-09-30	$3,270,471	92,100	-56.0%	Put	Sole	2025-11-13
2025-09-30	$26,685,765	751,500	+52.1%	Call	Sole	2025-11-13
2025-06-30	$16,122,483	494,100	-30.2%	Call	Sole	2025-07-28
2025-06-30	$11,553,238	354,068	+220.3%	Shares	Sole	2025-07-28
2025-03-31	$20,839,383	708,100	-4.3%	Call	Sole	2025-05-15
2024-12-31	$23,889,481	740,300	—	Call	Sole	2025-02-10
2023-06-30	$3,769,414	110,540	+126.3%	Shares	Sole	2023-08-11
2023-03-31	$1,462,359	48,843	+516.2%	Shares	Sole	2023-05-10
2022-09-30	$211,175	7,927	-96.4%	Shares	Sole	2022-11-10
2022-06-30	$6,431,675	221,324	+279.2%	Shares	Sole	2022-08-11
2022-03-31	$7,834,540	209,200	+1600.8%	Put	Sole	2022-05-11
2022-03-31	$2,185,844	58,367	+3305.3%	Shares	Sole	2022-05-11
2021-12-31	$462,480	12,300	—	Put	Sole	2022-02-10
2021-12-31	$64,446	1,714	—	Shares	Sole	2022-02-10
No filing history on record for this holder in this stock.