Twin Tree Management, LP

Position in WAB — Westinghouse Air Brake Technologies Corp

CIK 1535588 DALLAS, TX

Back to WAB Full portfolio

Position in WAB

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

Position Value

$4,313

-$253,094 QoQ

Shares Held

-98.4% QoQ

Ownership

0.000%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#1,055

of 1,184 holders

Holding Since

Mar 2020

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in WAB Over Time

Shares Held

Position Value (USD)

Derivatives in WAB

reported options exposure · as of Jun 30, 2026

CallValue

CallShares

PutValue

$1,482,800

PutShares

5,500

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. WAB ranks #4 (0.1% of the industry book) .

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

All Filings in WAB

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$4,313	16	-98.4%	Shares	Sole	2026-08-12
2026-06-30	$1,482,800	5,500	0.0%	Put	Sole	2026-08-12
2026-03-31	$1,374,505	5,500	-91.0%	Put	Sole	2026-05-14
2026-03-31	$257,407	1,030	+25650.0%	Shares	Sole	2026-05-14
2025-06-30	$12,728,480	60,800	0.0%	Put	Sole	2025-07-28
2025-06-30	$837	4	-100.0%	Shares	Sole	2025-07-28
2025-03-31	$11,026,080	60,800	+20.6%	Put	Sole	2025-05-15
2025-03-31	$1,500,127	8,272	+179.5%	Shares	Sole	2025-05-15
2024-12-31	$561,186	2,960	-82.5%	Shares	Sole	2025-02-10
2024-09-30	$3,076,457	16,925	+303.6%	Shares	Sole	2024-11-13
2024-09-30	$9,161,208	50,400	-46.8%	Put	Sole	2024-11-13
2024-06-30	$14,983,140	94,800	+70.8%	Put	Sole	2024-08-13
2023-09-30	$445,696	4,194	-44.2%	Shares	Sole	2023-11-14
2023-06-30	$824,828	7,521	-5.8%	Shares	Sole	2023-08-11
2022-09-30	$649,335	7,982	-59.7%	Shares	Sole	2022-11-10
2022-03-31	$1,906,954	19,829	+744.5%	Shares	Sole	2022-05-11
2021-12-31	$216,274	2,348	+511.5%	Shares	Sole	2022-02-10
2020-12-31	$439,200	6,000	-67.4%	Call	Sole	2021-02-12
2020-12-31	$28,108	384	-98.9%	Shares	Sole	2021-02-12
2020-06-30	$2,096,353	36,414	+239.6%	Shares	Sole	2020-08-12
2020-06-30	$1,059,288	18,400	0.0%	Call	Sole	2020-08-12
2020-06-30	$3,195,135	55,500	+362.5%	Put	Sole	2020-08-12
2020-03-31	$885,592	18,400	—	Call	Sole	2020-05-13
2020-03-31	$577,560	12,000	—	Put	Sole	2020-05-13
2020-03-31	$516,097	10,723	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.