Vanguard Personalized Indexing Management’s iRhythm Holdings IRTC Stock Holding History

Vanguard Personalized Indexing 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	$367K	Buy	3,088 +111	+4%	+$12.9K	﹤0.01%	1581
2026 Q1	$351K	Buy	2,977 +505	+20%	+$72.9K	﹤0.01%	1517
2025 Q4	$439K	Buy	2,472 +102	+4%	+$18.1K	﹤0.01%	1304
2025 Q3	$408K	Sell	2,370 -40	-2%	-$6.36K	﹤0.01%	1337
2025 Q2	$371K	Buy	2,410 +293	+14%	+$37.9K	﹤0.01%	1342
2025 Q1	$222K	Buy	+2,117	New	+$224K	﹤0.01%	1474
2023 Q2	–	Sell	-1,788	Closed	-$222K	–	1499
2023 Q1	$222K	Buy	+1,788	New	+$194K	0.01%	1279
2022 Q2	–	Sell	-1,290	Closed	-$203K	–	1299
2022 Q1	$203K	Buy	+1,290	New	+$166K	0.01%	1122

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

Vanguard Personalized Indexing Management's IRTC Position: Q2 2026 in Review

Vanguard Personalized Indexing Management increased its iRhythm Holdings (IRTC) stake by 3.7% in Q2 2026, buying an estimated $12.9K and bringing the position to 3,088 shares worth $367K. The position accounts for ﹤0.01% of the portfolio, ranked #1581.

Vanguard Personalized Indexing Management first reported a position in IRTC in Q1 2022 and has held it in 8 quarters since. The position peaked at $439K in Q4 2025. 303 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

Vanguard Personalized Indexing Management held 3,088 shares of iRhythm Holdings worth $367K as of Q2 2026.
Vanguard Personalized Indexing Management bought 111 iRhythm Holdings shares in Q2 2026, an estimated $12.9K.
iRhythm Holdings made up ﹤0.01% of Vanguard Personalized Indexing Management's portfolio in Q2 2026, its #1581 holding.
Vanguard Personalized Indexing Management first reported a position in iRhythm Holdings in Q1 2022 and has held it in 8 quarters since.
Vanguard Personalized Indexing Management's iRhythm Holdings position peaked at $439K in Q4 2025.
303 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on Vanguard Personalized Indexing Management's 13F filing for Q2 2026, filed 11 Aug 2026.