JANE STREET GROUP, LLC

Position in MKSI — Mks Inc

CIK 1595888 NEW YORK, NY

Back to MKSI Full portfolio

Position in MKSI

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$1,943,776

-$53,958,195 QoQ

Shares Held

4,370

-98.2% QoQ

Ownership

0.006%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#341

of 773 holders

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in MKSI Over Time

Shares Held

Position Value (USD)

Derivatives in MKSI

reported options exposure · as of Jun 30, 2026

CallValue

$646,072,000

CallShares

1,452,500

PutValue

$173,516,480

PutShares

390,100

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 Scientific & Technical Instruments

Technology · as of Jun 30, 2026

JANE STREET GROUP, LLC holds $850,321,154 across 24 Scientific & Technical Instruments names. MKSI ranks #13 (0.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	KEYS	Keysight Technologies, Inc.	973,351	$340,740,984
2	COHR	Coherent Corp.	389,513	$153,651,191
3	FTV	Fortive Corp	1,552,116	$94,818,765
4	ST	Sensata Technologies Holding plc	1,671,950	$79,818,892
5	NOVT	Novanta Inc	364,911	$55,698,252
6	VPG	Vishay Precision Group, Inc.	339,599	$50,909,285
7	CGNX	Cognex Corp	497,060	$35,997,084
8	VNT	Vontier Corp	637,723	$18,493,967

All Filings in MKSI

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50 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$173,516,480	390,100	+3292.2%	Put	Defined	2026-08-14
2026-06-30	$1,943,776	4,370	-98.2%	Shares	Defined	2026-08-14
2026-06-30	$646,072,000	1,452,500	+168.9%	Call	Defined	2026-08-14
2026-03-31	$55,901,971	243,253	-36.5%	Shares	Defined	2026-05-12
2026-03-31	$124,143,362	540,200	+0.2%	Call	Defined	2026-05-12
2026-03-31	$2,642,815	11,500	-11.5%	Put	Defined	2026-05-12
2025-12-31	$2,077,400	13,000	+66.7%	Put	Defined	2026-02-12
2025-12-31	$61,221,776	383,115	+191.0%	Shares	Defined	2026-02-12
2025-12-31	$86,180,140	539,300	-0.4%	Call	Defined	2026-02-12
2025-09-30	$965,406	7,800	-25.0%	Put	Defined	2025-11-14
2025-09-30	$66,996,701	541,300	+1.9%	Call	Defined	2025-11-14
2025-09-30	$16,293,328	131,642	+1686.9%	Shares	Defined	2025-11-14
2025-06-30	$1,033,344	10,400	+188.9%	Put	Defined	2025-08-14
2025-06-30	$731,985	7,367	-92.9%	Shares	Defined	2025-08-14
2025-06-30	$52,799,904	531,400	+1.5%	Call	Defined	2025-08-14
2025-03-31	$41,942,495	523,300	-0.2%	Call	Defined	2025-05-19
2025-03-31	$8,261,059	103,070	-43.2%	Shares	Defined	2025-05-19
2025-03-31	$288,540	3,600	+80.0%	Put	Defined	2025-05-19
2024-12-31	$208,780	2,000	-95.9%	Put	Defined	2025-02-14
2024-12-31	$54,731,677	524,300	+0.1%	Call	Defined	2025-02-14
2024-12-31	$18,953,255	181,562	-42.6%	Shares	Defined	2025-02-14
2024-09-30	$34,371,709	316,178	+73.4%	Shares	Defined	2024-11-15
2024-09-30	$56,931,427	523,700	+3837.6%	Call	Defined	2024-11-15
2024-06-30	$23,810,086	182,341	+147.0%	Shares	Defined	2024-08-15
2024-03-31	$9,819,656	73,832	-41.2%	Shares	Defined	2024-05-16
2023-12-31	$12,908,228	125,481	+238.2%	Shares	Defined	2024-02-15
2023-09-30	$3,210,460	37,098	+230.0%	Shares	Defined	2023-11-15
2023-06-30	$1,215,259	11,242	-70.6%	Shares	Defined	2023-08-14
2023-03-31	$3,391,044	38,265	+119.3%	Shares	Defined	2023-05-16
2022-12-31	$1,478,707	17,452	-41.7%	Shares	Defined	2023-02-15
2022-09-30	$2,472,422	29,918	+28.5%	Shares	Defined	2022-11-15
2022-06-30	$2,389,431	23,282	+1265.5%	Shares	Defined	2022-08-16
2022-03-31	$1,995,000	13,300	-13.1%	Call	Defined	2022-05-17
2022-03-31	$7,245,000	48,300	+552.7%	Put	Defined	2022-05-17
2021-09-30	$257,301	1,705	-89.9%	Shares	Defined	2021-11-16
2021-09-30	$2,308,923	15,300	-44.2%	Call	Defined	2021-11-16
2021-09-30	$1,116,734	7,400	+4.2%	Put	Defined	2021-11-16
2021-06-30	$4,875,830	27,400	+60.2%	Call	Defined	2021-08-16
2021-06-30	$1,263,445	7,100	+14.5%	Put	Defined	2021-08-16
2021-03-31	$1,149,604	6,200	-72.7%	Put	Defined	2021-05-18
2021-03-31	$3,133,783	16,901	+629.4%	Shares	Defined	2021-05-18
2021-03-31	$3,170,682	17,100	+62.9%	Call	Defined	2021-05-18
2020-12-31	$348,592	2,317	-3.2%	Shares	Defined	2021-02-17
2020-12-31	$1,579,725	10,500	-10.3%	Call	Defined	2021-02-17
2020-12-31	$3,415,215	22,700	+54.4%	Put	Defined	2021-02-17
2020-09-30	$1,277,991	11,700	+303.4%	Call	Defined	2020-11-17
2020-09-30	$261,496	2,394	-41.0%	Shares	Defined	2020-11-17
2020-06-30	$1,664,628	14,700	—	Put	Defined	2020-08-17
2020-06-30	$328,396	2,900	—	Call	Defined	2020-08-17
2020-06-30	$459,301	4,056	—	Shares	Defined	2020-08-17
No filing history on record for this holder in this stock.