Twin Tree Management, LP

Position in DXCM — Dexcom Inc

CIK 1535588 DALLAS, TX

Back to DXCM Full portfolio

Position in DXCM

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

Position Value

$722,059

+$709,185 QoQ

Shares Held

10,721

+5129.8% QoQ

Ownership

0.003%

of shares outstanding

% of Portfolio

0.13%

of 13F equity value

Holder Rank

#526

of 966 holders

Holding Since

Mar 2020

22 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in DXCM Over Time

Shares Held

Position Value (USD)

Derivatives in DXCM

reported options exposure · as of Jun 30, 2026

CallValue

$1,144,950

CallShares

17,000

PutValue

$2,559,300

PutShares

38,000

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 Medical Devices

Healthcare · as of Jun 30, 2026

Twin Tree Management, LP holds $1,094,170 across 3 Medical Devices names. DXCM ranks #1 (66.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	DXCM	Dexcom Inc This page	10,721	$722,059
2	BRKR	Bruker Corp	4,708	$283,327
3	SYK	Stryker Corp	282	$88,784

All Filings in DXCM

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39 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,144,950	17,000	-74.3%	Call	Sole	2026-08-12
2026-06-30	$722,059	10,721	+5129.8%	Shares	Sole	2026-08-12
2026-06-30	$2,559,300	38,000	+1.6%	Put	Sole	2026-08-12
2026-03-31	$12,874	205	-99.7%	Shares	Sole	2026-05-14
2025-12-31	$4,393,694	66,200	-42.4%	Call	Sole	2026-02-11
2025-12-31	$2,482,238	37,400	-77.3%	Put	Sole	2026-02-11
2025-09-30	$11,102,850	165,000	-55.0%	Put	Sole	2025-11-13
2025-09-30	$7,738,350	115,000	-66.1%	Call	Sole	2025-11-13
2025-06-30	$29,573,852	338,800	+79.4%	Call	Sole	2025-07-28
2025-06-30	$32,009,243	366,700	+1882.2%	Put	Sole	2025-07-28
2025-03-31	$1,263,365	18,500	-89.2%	Put	Sole	2025-05-15
2024-12-31	$13,267,562	170,600	+34.0%	Put	Sole	2025-02-10
2024-09-30	$4,099,630	61,152	+4.9%	Shares	Sole	2024-11-13
2024-09-30	$8,534,192	127,300	-4.7%	Put	Sole	2024-11-13
2024-09-30	$12,663,856	188,900	-61.6%	Call	Sole	2024-11-13
2024-06-30	$55,726,270	491,500	-31.4%	Call	Sole	2024-08-13
2024-06-30	$15,147,568	133,600	-51.4%	Put	Sole	2024-08-13
2024-06-30	$6,607,446	58,277	-42.5%	Shares	Sole	2024-08-13
2024-03-31	$38,156,370	275,100	+83.6%	Put	Sole	2024-05-09
2024-03-31	$99,336,940	716,200	+1376.7%	Call	Sole	2024-05-09
2023-06-30	$13,022,560	101,335	+674.0%	Shares	Sole	2023-08-11
2023-03-31	$1,521,028	13,092	-94.9%	Shares	Sole	2023-05-10
2022-06-30	$19,100,473	256,279	+1298.7%	Shares	Sole	2022-08-11
2022-03-31	$76,637,680	149,800	+446.7%	Put	Sole	2022-05-11
2022-03-31	$9,374,046	18,323	+342.6%	Shares	Sole	2022-05-11
2022-03-31	$24,812,600	48,500	+36.2%	Call	Sole	2022-05-11
2021-12-31	$19,115,420	35,600	-67.3%	Call	Sole	2022-02-10
2021-12-31	$14,712,430	27,400	+32.4%	Put	Sole	2022-02-10
2021-09-30	$11,320,002	20,700	-12.7%	Put	Sole	2021-11-12
2021-09-30	$59,607,740	109,000	-55.2%	Call	Sole	2021-11-12
2021-06-30	$103,931,800	243,400	+197.9%	Call	Sole	2021-08-12
2021-03-31	$1,487,874	4,140	+144.7%	Shares	Sole	2021-05-17
2021-03-31	$8,517,543	23,700	+811.5%	Put	Sole	2021-05-17
2021-03-31	$29,362,163	81,700	-39.7%	Call	Sole	2021-05-17
2020-12-31	$50,097,060	135,500	+107.2%	Call	Sole	2021-02-12
2020-09-30	$26,959,842	65,400	—	Call	Sole	2020-11-13
2020-09-30	$1,071,798	2,600	—	Put	Sole	2020-11-13
2020-06-30	$685,936	1,692	-65.7%	Shares	Sole	2020-08-12
2020-03-31	$1,329,924	4,939	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.