Trillium Asset Management’s iRhythm Holdings IRTC Stock Holding History

Trillium Asset 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
2026 Q2	$2.19M	Buy	18,437 +1,718	+10%	+$200K	0.07%	156
2026 Q1	$2.14M	Buy	+16,719	New	+$2.41M	0.07%	153
2018 Q1	–	Sell	-18,924	Closed	-$1.06M	–	236
2017 Q4	$1.06M	Buy	18,924 +686	+4%	+$35.9K	0.06%	177
2017 Q3	$946K	Buy	18,238 +297	+2%	+$13.4K	0.05%	177
2017 Q2	$762K	Buy	+17,941	New	+$653K	0.05%	181

Other funds holding IRTC

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

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

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

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

EAM

Eventide Asset Management Boston, Massachusetts $7.48B AUM 104.76% 1-Year Est. Return

Trillium Asset Management's IRTC Position: Q2 2026 in Review

Trillium Asset Management increased its iRhythm Holdings (IRTC) stake by 10% in Q2 2026, buying an estimated $200K and bringing the position to 18,437 shares worth $2.19M. The position accounts for 0.07% of the portfolio, ranked #156.

Trillium Asset Management first reported a position in IRTC in Q2 2017 and has held it in 5 quarters since. 304 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

Trillium Asset Management held 18,437 shares of iRhythm Holdings worth $2.19M as of Q2 2026.
Trillium Asset Management bought 1,718 iRhythm Holdings shares in Q2 2026, an estimated $200K.
iRhythm Holdings made up 0.07% of Trillium Asset Management's portfolio in Q2 2026, its #156 holding.
Trillium Asset Management first reported a position in iRhythm Holdings in Q2 2017 and has held it in 5 quarters since.
304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on Trillium Asset Management's 13F filing for Q2 2026, filed 11 Aug 2026.