Canada Pension Plan Investment Board
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Canada Pension Plan Investment Board’s iRhythm Holdings IRTC Stock Holding History

Canada Pension Plan Investment Board’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 		$5.79M Sell
48,700
-10,100
-17% -$1.17M ﹤0.01% 786
2026
Q1 		$6.94M Buy
58,800
+28,700
+95% +$4.14M ﹤0.01% 723
2025
Q4 		$5.34M Buy
30,100
+26,000
+634% +$4.61M ﹤0.01% 772
2025
Q3 		$705K Buy
4,100
+1,300
+46% +$207K ﹤0.01% 1020
2025
Q2 		$431K Buy
2,800
+2,500
+833% +$323K ﹤0.01% 1036
2025
Q1 		$31.4K Buy
+300
New +$31.8K ﹤0.01% 1230
2024
Q4 		– Sell
-1,200
Closed -$89.1K – 1458
2024
Q3 		$89.1K Buy
1,200
+700
+140% +$55.8K ﹤0.01% 1183
2024
Q2 		$53.8K Sell
500
-15,500
-97% -$1.58M ﹤0.01% 1267
2024
Q1 		$1.86M Sell
16,000
-12,200
-43% -$1.37M ﹤0.01% 913
2023
Q4 		$3.02M Buy
28,200
+17,100
+154% +$1.49M ﹤0.01% 769
2023
Q3 		$1.05M Buy
+11,100
New +$1.13M ﹤0.01% 857
2023
Q2 		– Sell
-30,000
Closed -$3.72M – 1039
2023
Q1 		$3.72M Buy
30,000
+27,400
+1,054% +$2.97M 0.01% 647
2022
Q4 		$244K Sell
2,600
-7,600
-75% -$827K ﹤0.01% 968
2022
Q3 		$1.28M Buy
10,200
+10,000
+5,000% +$1.44M ﹤0.01% 820
2022
Q2 		$22K Hold
200
– – ﹤0.01% 1209
2022
Q1 		$31K Sell
200
-1,621
-89% -$208K ﹤0.01% 1249
2021
Q4 		$214K Sell
1,821
-1,205
-40% -$111K ﹤0.01% 1243
2021
Q3 		$177K Buy
3,026
+1,875
+163% +$99.4K ﹤0.01% 1219
2021
Q2 		$76K Sell
1,151
-1,895
-62% -$150K ﹤0.01% 1040
2021
Q1 		$423K Buy
3,046
+1,654
+119% +$296K ﹤0.01% 1084
2020
Q4 		$330K Buy
+1,392
New +$317K ﹤0.01% 1186

Other funds holding IRTC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
Geode Capital Management
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

Canada Pension Plan Investment Board's IRTC Position: Q2 2026 in Review

Canada Pension Plan Investment Board reduced its iRhythm Holdings (IRTC) stake by 17% in Q2 2026, selling an estimated $1.17M and leaving 48,700 shares worth $5.79M. The position accounts for ﹤0.01% of the portfolio, ranked #786.

Canada Pension Plan Investment Board first reported a position in IRTC in Q4 2020 and has held it in 21 quarters since. The position peaked at $6.94M in Q1 2026. 304 funds tracked by Wall St. Rank hold IRTC as of Q2 2026.

  • Canada Pension Plan Investment Board held 48,700 shares of iRhythm Holdings worth $5.79M as of Q2 2026.
  • Canada Pension Plan Investment Board sold 10,100 iRhythm Holdings shares in Q2 2026, an estimated $1.17M.
  • iRhythm Holdings made up ﹤0.01% of Canada Pension Plan Investment Board's portfolio in Q2 2026, its #786 holding.
  • Canada Pension Plan Investment Board first reported a position in iRhythm Holdings in Q4 2020 and has held it in 21 quarters since.
  • Canada Pension Plan Investment Board's iRhythm Holdings position peaked at $6.94M in Q1 2026.
  • 304 funds tracked by Wall St. Rank held iRhythm Holdings as of Q2 2026.

Based on Canada Pension Plan Investment Board's 13F filing for Q2 2026, filed 14 Aug 2026.