Prelude Capital Management’s iRhythm Holdings IRTC Stock Holding History

Prelude Capital Management’s Portfolio IRTC Stock Details IRTC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-1,671	Closed	-$287K	–	1426
2025 Q3	$287K	Buy	+1,671	New	+$266K	0.02%	755
2022 Q4	–	Sell	-6,397	Closed	-$801K	–	1461
2022 Q3	$801K	Sell	6,397 -229	-3%	-$33.1K	0.03%	483
2022 Q2	$716K	Sell	6,626 -6,512	-50%	-$863K	0.02%	649
2022 Q1	$2.07M	Sell	13,138 -10,130	-44%	-$1.3M	0.06%	324
2021 Q4	$2.74M	Buy	+23,268	New	+$2.13M	0.07%	230
2020 Q4	–	Sell	-70	Closed	-$17K	–	1622
2020 Q3	$17K	Buy	+70	New	+$12.4K	﹤0.01%	1355
2018 Q4	–	Sell	-497	Closed	-$47K	–	1967
2018 Q3	$47K	Buy	+497	New	+$43.3K	﹤0.01%	1142
2018 Q2	–	Sell	-2,129	Closed	-$134K	–	1786
2018 Q1	$134K	Buy	+2,129	New	+$132K	0.01%	788

Other funds holding IRTC

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Sands Capital Management Arlington, Virginia $26.9B AUM 34.44% 1-Year Est. Return

Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Prelude Capital Management's IRTC Position: Q4 2025 in Review

Prelude Capital Management sold out of iRhythm Holdings (IRTC) in Q4 2025, closing a stake of 1,671 shares — an estimated $287K sold.

Prelude Capital Management first reported a position in IRTC in Q1 2018 and held it in 8 quarters. The position peaked at $2.74M in Q4 2021. 334 funds tracked by Wall St. Rank hold IRTC as of Q4 2025.

Prelude Capital Management reported no remaining iRhythm Holdings position as of Q4 2025 after selling out during the quarter.
Prelude Capital Management sold 1,671 iRhythm Holdings shares in Q4 2025, an estimated $287K.
Prelude Capital Management first reported a position in iRhythm Holdings in Q1 2018 and held it in 8 quarters.
Prelude Capital Management's iRhythm Holdings position peaked at $2.74M in Q4 2021.
334 funds tracked by Wall St. Rank held iRhythm Holdings as of Q4 2025.

Based on Prelude Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.