Holocene Advisors, LP

SEC CIK: 0001700574
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

INSM holding history

INSMED Inc in every 13F filed by Holocene Advisors, LP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

INSM overview All 13F holders of INSM Full Q2 2026 holdings

Shares (Q2 2026): 192,879
Value: $20.6M
% of portfolio: <0.1%
Quarters held: 18; Since Q1 2021

Holdings of INSM by Holocene Advisors, LP, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	192,879	$20.6M	<0.1%	+192,879	New	Holders
Q1 2026	0	$0	0.0%	−801,165−100.0%	Sold out	Holders
Q4 2025	801,165	$139.4M	0.3%	−282,516−26.1%	Reduced	Holders
Q3 2025	1,083,681	$156.1M	0.4%	−933,125−46.3%	Reduced	Holders
Q2 2025	2,016,806	$203.0M	0.5%	−9,616−0.5%	Reduced	Holders
Q1 2025	2,026,422	$154.6M	0.5%	+1,338,710+194.7%	Added	Holders
Q4 2024	687,712	$47.5M	0.2%	+687,712	New	Holders
Q1 2024	0	$0	0.0%	−1,614,862−100.0%	Sold out	Holders
Q4 2023	1,614,862	$50.0M	0.2%	−193,626−10.7%	Reduced	Holders
Q3 2023	1,808,488	$45.7M	0.2%	−274,390−13.2%	Reduced	Holders
Q2 2023	2,082,878	$43.9M	0.2%	−132,269−6.0%	Reduced	Holders
Q1 2023	2,215,147	$37.8M	0.2%	+76,280+3.6%	Added	Holders
Q4 2022	2,138,867	$42.7M	0.3%	+408,359+23.6%	Added	Holders
Q3 2022	1,730,508	$37.3M	0.2%	−1,163,314−40.2%	Reduced	Holders
Q2 2022	2,893,822	$57.1M	0.3%	+150,243+5.5%	Added	Holders
Q1 2022	2,743,579	$64.5M	0.3%	+606,993+28.4%	Added	Holders
Q4 2021	2,136,586	$58.2M	0.3%	−50,689−2.3%	Reduced	Holders
Q3 2021	2,187,275	$60.2M	0.3%	−314,004−12.6%	Reduced	Holders
Q2 2021	2,501,279	$71.2M	0.4%	+723,666+40.7%	Added	Holders
Q1 2021	1,777,613	$60.5M	0.4%	–	–	Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.