How many shares of IRTC does BLAIR WILLIAM & CO/IL own?

As of 2026-Q2, BLAIR WILLIAM & CO/IL holds 524,690 shares of IRTC (IRHYTHM HOLDINGS INC).

What is BLAIR WILLIAM & CO/IL's IRTC position worth?

As of 2026-Q2, BLAIR WILLIAM & CO/IL's IRTC position is worth $62.4M.

In 2026-Q2, BLAIR WILLIAM & CO/IL decreased their IRTC position (-16.5% change in shares).

Based on available 13F filings, BLAIR WILLIAM & CO/IL first reported a position in IRTC in 2019-Q4. They have held the position across 27 quarters.

Position history for BLAIR WILLIAM & CO/IL's holdings in IRHYTHM HOLDINGS INC

Current Value

$62.4M

Current Shares

524,690

Total Value Change

+$62.1M

Total Shares Change

+520,148

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	524,690	-16.5%	$62.4M	0.2%	$118.95	0
2026-Q1	Decreased	628,385	-12.6%	$74.2M	0.2%	$118.02	0
2025-Q4	Decreased	718,797	-3.0%	$127.5M	0.3%	$177.44	0
2025-Q3	Increased	740,721	+0.2%	$127.4M	0.3%	$171.99	36
2025-Q2	Decreased	739,331	-6.4%	$113.8M	0.3%	$153.96	0
2025-Q1	Increased	789,999	+30.6%	$82.7M	0.2%	$104.68	45
2024-Q4	Decreased	604,737	-6.2%	$54.5M	0.2%	$90.17	0
2024-Q3	Decreased	644,441	-19.4%	$47.8M	0.1%	$74.24	0
2024-Q2	Decreased	799,080	-4.1%	$86M	0.3%	$107.64	0
2024-Q1	Increased	832,934	+3.5%	$96.6M	0.3%	$116.00	37
2023-Q4	Decreased	805,092	-27.6%	$86.2M	0.3%	$107.04	0
2023-Q3	Increased	1.1M	+6.6%	$104.8M	0.4%	$94.26	38
2023-Q2	Increased	1M	+3.4%	$108.7M	0.4%	$104.32	37
2023-Q1	Increased	1M	+10.5%	$125.1M	0.5%	$124.03	40
2022-Q4	Increased	912,952	+10.9%	$85.5M	0.4%	$93.67	40
2022-Q3	Increased	823,081	+21.3%	$103.1M	0.5%	$125.28	43
2022-Q2	Decreased	678,396	-1.9%	$73.3M	0.3%	$108.03	0
2022-Q1	Decreased	691,163	-8.5%	$108.8M	0.4%	$157.47	0
2021-Q4	Increased	755,055	+9.4%	$88.9M	0.3%	$117.69	39
2021-Q3	Increased	690,224	+8.8%	$40.4M	0.1%	$58.56	38
2021-Q2	Increased	634,684	+27.4%	$42.1M	0.1%	$66.35	43
2021-Q1	Increased	498,163	+134.3%	$69.2M	0.3%	$138.86	57
2020-Q4	Increased	212,608	+26.8%	$50.4M	0.2%	$237.21	43
2020-Q3	Decreased	167,710	-9.5%	$39.9M	0.2%	$238.11	0
2020-Q2	Increased	185,330	+553.6%	$21.5M	0.1%	$115.89	55
2020-Q1	Increased	28,356	+524.3%	$2.3M	0.0%	$81.35	42
2019-Q4	New	4,542	-	$309,000	0.0%	$68.09	32