Aigen Investment Management’s iRhythm Holdings IRTC Stock Holding History

Aigen Investment 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 Q3	–	Sell	-1,686	Closed	-$260K	–	933
2025 Q2	$260K	Buy	+1,686	New	+$218K	0.04%	580
2024 Q4	–	Sell	-3,276	Closed	-$243K	–	860
2024 Q3	$243K	Buy	+3,276	New	+$261K	0.05%	526
2021 Q3	–	Sell	-3,725	Closed	-$247K	–	563
2021 Q2	$247K	Sell	3,725 -3,901	-51%	-$309K	0.04%	363
2021 Q1	$1.06M	Buy	7,626 +3,748	+97%	+$672K	0.14%	170
2020 Q4	$920K	Buy	3,878 +3,026	+355%	+$690K	0.12%	227
2020 Q3	$203K	Buy	+852	New	+$151K	0.03%	648
2020 Q2	–	Sell	-7,381	Closed	-$600K	–	1044
2020 Q1	$600K	Sell	7,381 -20,351	-73%	-$1.69M	0.08%	375
2019 Q4	$1.89M	Buy	+27,732	New	+$1.88M	0.31%	71

Other funds holding IRTC

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

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return

Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

William Blair & Company Chicago, Illinois $34.9B AUM 18.88% 1-Year Est. Return

EAM

Eventide Asset Management Boston, Massachusetts $6.05B AUM 76.64% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Aigen Investment Management's IRTC Position: Q3 2025 in Review

Aigen Investment Management sold out of iRhythm Holdings (IRTC) in Q3 2025, closing a stake of 1,686 shares — an estimated $260K sold.

Aigen Investment Management first reported a position in IRTC in Q4 2019 and held it in 8 quarters. The position peaked at $1.89M in Q4 2019. 337 funds tracked by Wall St. Rank hold IRTC as of Q3 2025.

Aigen Investment Management reported no remaining iRhythm Holdings position as of Q3 2025 after selling out during the quarter.
Aigen Investment Management sold 1,686 iRhythm Holdings shares in Q3 2025, an estimated $260K.
Aigen Investment Management first reported a position in iRhythm Holdings in Q4 2019 and held it in 8 quarters.
Aigen Investment Management's iRhythm Holdings position peaked at $1.89M in Q4 2019.
337 funds tracked by Wall St. Rank held iRhythm Holdings as of Q3 2025.

Based on Aigen Investment Management's 13F filing for Q3 2025, filed 14 Nov 2025.