MILLENNIUM MANAGEMENT LLC

Position in INSM — INSMED Inc

CIK 1273087 NEW YORK, NY

Back to INSM Full portfolio

Position in INSM

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

Position Value

$189,321,166

-$38,959,096 QoQ

Shares Held

1,157,786

-11.7% QoQ

Ownership

0.534%

of shares outstanding

% of Portfolio

0.17%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

23 quarters on record

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

Common Shares in INSM Over Time

Shares Held

Position Value (USD)

Derivatives in INSM

reported options exposure · as of Mar 31, 2026

CallValue

$22,451,296

CallShares

137,300

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 Biotechnology

Healthcare · as of Mar 31, 2026

MILLENNIUM MANAGEMENT LLC holds $4,466,124,984 across 340 Biotechnology names. INSM ranks #2 (4.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	JAZZ	Jazz Pharmaceuticals plc	1,262,511	$238,677,704
2	INSM	INSMED Inc This page	1,157,786	$189,321,166
3	BMRN	Biomarin Pharmaceutical Inc	3,010,308	$170,052,298
4	TERN	Terns Pharmaceuticals, Inc.	3,011,558	$158,769,337
5	ALNY	Alnylam Pharmaceuticals, Inc.	447,887	$148,192,371
6	FOLD	AMICUS THERAPEUTICS, INC.	7,908,459	$114,356,317
7	ARDX	Ardelyx, Inc.	17,842,370	$106,875,796
8	BLTE	Belite Bio, Inc	570,088	$90,894,830

All Filings in INSM

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36 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$22,451,296	137,300	-88.1%	Call	Sole	2026-05-15
2026-03-31	$189,321,166	1,157,786	-11.7%	Shares	Sole	2026-05-15
2025-12-31	$228,280,262	1,311,654	+109204.5%	Shares	Sole	2026-02-17
2025-12-31	$208,848	1,200	-99.9%	Put	Sole	2026-02-17
2025-09-30	$336,423,489	2,336,112	+29101.4%	Shares	Sole	2025-11-14
2025-06-30	$805,120	8,000	-99.6%	Call	Sole	2025-08-14
2025-06-30	$213,529,598	2,121,717	+212.4%	Shares	Sole	2025-08-14
2025-03-31	$51,815,481	679,191	+6691.9%	Shares	Sole	2025-05-15
2025-03-31	$762,900	10,000	+33.3%	Call	Sole	2025-05-15
2024-12-31	$517,800	7,500	-98.9%	Put	Sole	2025-02-14
2024-12-31	$48,259,374	699,006	+872.2%	Shares	Sole	2025-02-14
2024-12-31	$4,963,976	71,900	-87.3%	Call	Sole	2025-02-14
2024-09-30	$41,234,488	564,856	+425.9%	Shares	Sole	2024-11-14
2024-09-30	$7,840,200	107,400	+18.9%	Call	Sole	2024-11-14
2024-06-30	$6,050,100	90,300	-92.5%	Call	Sole	2024-08-14
2024-06-30	$80,300,170	1,198,510	+2733.4%	Shares	Sole	2024-08-14
2024-06-30	$2,834,100	42,300	-5.4%	Put	Sole	2024-08-14
2024-03-31	$1,212,711	44,700	-83.8%	Call	Sole	2024-05-15
2024-03-31	$7,504,646	276,618	-82.8%	Shares	Sole	2024-05-15
2023-12-31	$49,738,980	1,605,001	-26.2%	Shares	Sole	2024-02-14
2023-09-30	$54,914,432	2,174,829	+2293.6%	Shares	Sole	2023-11-14
2023-06-30	$1,917,188	90,862	-63.4%	Shares	Sole	2023-08-14
2023-03-31	$4,228,246	247,991	-73.0%	Shares	Sole	2023-05-15
2022-09-30	$19,818,458	920,077	+284.8%	Shares	Sole	2022-11-14
2022-06-30	$4,714,618	239,078	+353.9%	Shares	Sole	2022-08-15
2022-03-31	$1,237,768	52,671	+24.4%	Shares	Sole	2022-05-16
2021-12-31	$1,153,096	42,331	+260.2%	Shares	Sole	2022-02-14
2021-06-30	$334,490	11,753	+62.8%	Shares	Sole	2021-08-16
2021-03-31	$245,879	7,219	-93.4%	Shares	Sole	2021-05-17
2020-12-31	$3,661,900	110,000	+94.4%	Call	Sole	2021-02-16
2020-12-31	$1,883,914	56,591	-70.7%	Shares	Sole	2021-02-16
2020-09-30	$6,209,865	193,213	-36.3%	Shares	Sole	2020-11-16
2020-06-30	$8,349,522	303,178	+2931.8%	Shares	Sole	2020-08-14
2020-06-30	$275,400	10,000	-97.7%	Call	Sole	2020-08-14
2020-03-31	$6,897,564	430,291	+4202.9%	Shares	Sole	2020-05-14
2020-03-31	$160,300	10,000	—	Call	Sole	2020-05-14
No filing history on record for this holder in this stock.