Walleye Trading LLC

Position in WAT — Waters Corp /De/

CIK 1388391 NEW YORK, NY

Back to WAT Full portfolio

Position in WAT

as of Mar 31, 2026 · filed May 11, 2026 Compact

Position Value

$206,375

+$206,375 QoQ

Shares Held

693

Ownership

0.001%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

21 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in WAT Over Time

Shares Held

Position Value (USD)

Derivatives in WAT

reported options exposure · as of Mar 31, 2025

CallValue

$3,169,702

CallShares

8,600

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 Diagnostics & Research

Healthcare · as of Mar 31, 2026

Walleye Trading LLC holds $9,391,151 across 9 Diagnostics & Research names. WAT ranks #6 (2.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CRL	Charles River Laboratories International, Inc.	31,661	$5,461,522
2	A	Agilent Technologies, Inc.	11,098	$1,264,950
3	QGEN	Qiagen N.V.	29,434	$1,178,537
4	IQV	Iqvia Holdings Inc.	3,564	$607,804
5	RDNT	RadNet, Inc.	8,609	$481,157
6	WAT	Waters Corp /De/ This page	693	$206,375
7	DGX	Quest Diagnostics Inc	549	$107,593
8	NTRA	Natera, Inc.	260	$51,997

All Filings in WAT

Export CSV

45 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$206,375	693	—	Shares	Sole	2026-05-11
2026-03-31	$0	0	-100.0%	Call	Sole	2026-05-11
2025-03-31	$3,169,702	8,600	+330.0%	Call	Sole	2025-05-14
2024-12-31	$741,960	2,000	+150.0%	Call	Sole	2025-02-13
2024-12-31	$296,784	800	-92.4%	Put	Sole	2025-02-13
2024-09-30	$3,778,845	10,500	+854.5%	Call	Sole	2024-11-14
2024-09-30	$395,879	1,100	-45.0%	Put	Sole	2024-11-14
2024-03-31	$688,460	2,000	-73.3%	Call	Sole	2024-05-15
2024-03-31	$2,581,725	7,500	+294.7%	Put	Sole	2024-05-15
2023-12-31	$625,537	1,900	+29.8%	Call	Sole	2024-02-14
2023-12-31	$481,992	1,464	-90.2%	Shares	Sole	2024-02-14
2023-12-31	$4,905,527	14,900	+130.8%	Put	Sole	2024-02-14
2023-09-30	$1,770,025	6,455	+34.5%	Shares	Sole	2023-11-21
2023-09-30	$1,316,208	4,800	-80.7%	Call	Sole	2023-11-21
2023-09-30	$6,827,829	24,900	+183.0%	Put	Sole	2023-11-21
2023-06-30	$2,345,552	8,800	-1.1%	Put	Sole	2023-08-14
2023-06-30	$2,372,206	8,900	+1171.4%	Call	Sole	2023-08-14
2023-03-31	$216,741	700	+743.4%	Put	Sole	2023-05-15
2023-03-31	$25,699	83	-94.8%	Shares	Sole	2023-05-15
2022-12-31	$548,128	1,600	-35.2%	Call	Sole	2023-02-14
2022-12-31	$846,515	2,471	-20.3%	Shares	Sole	2023-02-14
2022-12-31	$1,061,998	3,100	-53.7%	Put	Sole	2023-02-14
2022-09-30	$1,805,851	6,700	-17.3%	Put	Sole	2022-11-14
2022-09-30	$2,183,193	8,100	+1057.1%	Call	Sole	2022-11-14
2022-06-30	$231,686	700	-61.1%	Put	Sole	2022-08-08
2022-03-31	$558,702	1,800	+350.0%	Put	Sole	2022-05-16
2022-03-31	$124,156	400	+55.6%	Call	Sole	2022-05-16
2022-03-31	$79,770	257	-97.2%	Shares	Sole	2022-05-16
2021-12-31	$3,427,920	9,200	+253.8%	Call	Sole	2022-02-14
2021-12-31	$968,760	2,600	+188.9%	Put	Sole	2022-02-14
2021-09-30	$321,570	900	-89.5%	Put	Sole	2021-11-15
2021-09-30	$3,072,780	8,600	+330.0%	Call	Sole	2021-11-15
2021-06-30	$691,220	2,000	-89.1%	Put	Sole	2021-08-16
2021-06-30	$6,324,663	18,300	+2950.0%	Call	Sole	2021-08-16
2021-03-31	$170,502	600	-14.3%	Call	Sole	2021-05-17
2021-03-31	$198,919	700	-92.7%	Put	Sole	2021-05-17
2020-12-31	$2,375,232	9,600	+182.4%	Call	Sole	2021-02-16
2020-12-31	$841,228	3,400	+13.6%	Put	Sole	2021-02-16
2020-09-30	$585,474	2,992	-81.8%	Shares	Sole	2020-11-16
2020-09-30	$3,209,152	16,400	+264.4%	Call	Sole	2020-11-16
2020-09-30	$880,560	4,500	+73.1%	Put	Sole	2020-11-16
2020-06-30	$469,040	2,600	-68.3%	Call	Sole	2020-08-14
2020-03-31	$1,492,810	8,200	+1866.4%	Call	Sole	2020-05-15
2020-03-31	$75,914	417	-75.5%	Shares	Sole	2020-05-15
2020-03-31	$309,485	1,700	—	Put	Sole	2020-05-15
No filing history on record for this holder in this stock.