TUDOR INVESTMENT CORP ET AL

Position in INSP — Inspire Medical Systems, Inc.

CIK 923093 STAMFORD, CT

Back to INSP Full portfolio

Position in INSP

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$8,625,104

-$1,785,172 QoQ

Shares Held

167,218

+48.1% QoQ

Ownership

0.580%

of shares outstanding

% of Portfolio

0.05%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2020

21 quarters on record

Voting authority Sole 50.ToString("F0")% Shared 50.ToString("F0")% None 0.ToString("F0")%

Common Shares in INSP Over Time

Shares Held

Position Value (USD)

Derivatives in INSP

reported options exposure · as of Mar 31, 2026

CallValue

CallShares

PutValue

$288,848

PutShares

5,600

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 Mar 31, 2026

TUDOR INVESTMENT CORP ET AL holds $327,149,749 across 40 Medical Devices names. INSP ranks #7 (2.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PEN	Penumbra Inc	411,118	$134,998,817
2	BSX	Boston Scientific Corp	632,552	$39,692,638
3	ABT	Abbott Laboratories	326,258	$33,496,908
4	MASI	Masimo Corp	143,884	$25,592,647
5	STE	STERIS plc	55,788	$12,336,400
6	ESTA	Establishment Labs Holdings Inc.	171,430	$9,733,795
7	INSP	Inspire Medical Systems, Inc. This page	167,218	$8,625,104
8	IRMD	Iradimed Corp	71,836	$6,914,933

All Filings in INSP

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38 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$288,848	5,600	-96.7%	Put	Defined	2026-05-15
2026-03-31	$8,625,104	167,218	+5294.1%	Shares	Defined	2026-05-15
2025-12-31	$285,913	3,100	0.0%	Put	Defined	2026-02-17
2025-12-31	$285,913	3,100	-97.3%	Call	Defined	2026-02-17
2025-12-31	$10,410,276	112,873	+1489.8%	Shares	Defined	2026-02-17
2025-09-30	$526,820	7,100	+36.5%	Call	Defined	2025-11-14
2025-09-30	$385,840	5,200	+205.9%	Put	Defined	2025-11-14
2025-06-30	$220,609	1,700	-10.5%	Call	Defined	2025-08-14
2025-03-31	$302,632	1,900	-44.1%	Put	Defined	2025-05-15
2025-03-31	$541,552	3,400	+30.8%	Call	Defined	2025-05-15
2024-12-31	$481,988	2,600	-40.9%	Call	Defined	2025-02-14
2024-12-31	$815,672	4,400	-57.4%	Put	Defined	2025-02-14
2024-09-30	$2,180,357	10,331	+222.8%	Shares	Defined	2024-11-14
2024-06-30	$428,256	3,200	-34.3%	Put	Defined	2024-08-14
2024-06-30	$651,752	4,870	+73.9%	Shares	Defined	2024-08-14
2023-12-31	$569,604	2,800	-96.1%	Call	Defined	2024-02-14
2023-12-31	$14,565,588	71,600	+3480.0%	Shares	Defined	2024-02-14
2023-12-31	$406,860	2,000	-23.1%	Put	Defined	2024-02-14
2023-09-30	$515,944	2,600	-70.1%	Put	Defined	2023-11-15
2023-09-30	$1,725,038	8,693	+210.5%	Shares	Defined	2023-11-15
2023-09-30	$555,632	2,800	+64.7%	Call	Defined	2023-11-15
2023-06-30	$551,888	1,700	+112.5%	Put	Defined	2023-08-14
2023-06-30	$259,712	800	-95.5%	Call	Defined	2023-08-14
2023-06-30	$5,814,951	17,912	+1277.8%	Shares	Defined	2023-08-14
2023-03-31	$304,291	1,300	-78.0%	Put	Defined	2023-05-15
2023-03-31	$1,386,162	5,922	+438.4%	Shares	Defined	2023-05-15
2022-12-31	$277,068	1,100	-47.6%	Put	Defined	2023-02-14
2022-12-31	$528,948	2,100	-8.7%	Call	Defined	2023-02-14
2022-09-30	$407,951	2,300	+35.3%	Put	Defined	2022-11-14
2022-09-30	$301,529	1,700	-90.7%	Call	Defined	2022-11-14
2022-09-30	$3,234,519	18,236	+155.4%	Shares	Defined	2022-11-14
2022-06-30	$1,304,446	7,141	-63.3%	Shares	Defined	2022-08-15
2022-03-31	$4,992,363	19,449	+230.5%	Shares	Defined	2022-05-16
2021-12-31	$1,353,673	5,884	-4.0%	Shares	Defined	2022-02-14
2021-09-30	$1,426,622	6,126	-62.3%	Shares	Defined	2021-11-17
2021-06-30	$3,139,315	16,244	+203.6%	Shares	Defined	2021-08-16
2021-03-31	$1,107,396	5,350	-69.9%	Shares	Defined	2021-05-17
2020-12-31	$3,341,606	17,766	—	Shares	Defined	2021-02-16
No filing history on record for this holder in this stock.