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IRTC in the 13F filings

Irhythm Technologies Inc · CUSIP 450056106

Sector · Medical devices and instrumentsTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Surgical, medical and electromedical devices
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
30 Jun 2025
the date the book describes
Filed
14 Aug 2025
latest of these filings; the earliest 12 Aug 2025
Managers listing it
10
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q1 2025 and Q2 2025; 5 listed it in both
Shares listed
5,502,269
combined, among listed positions
Reported value
$847m
combined, at the quarter end

Among the 95 comparable managers: 6 buyers (opened or added shares) and 4 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing IRTC in Q2 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

10 of 10 holders

ActionFiling
Artisan Partners LP2,740,841$422m0.62%Trimmed-73,43912 Aug 2025 (the filing on sec.gov)
Capital Research Global Investors1,506,864$232munder 0.1%Trimmed-695,75813 Aug 2025 (the filing on sec.gov)
Point72 Asset Management LP322,098$50m0.10%Trimmed-98,20514 Aug 2025 (the filing on sec.gov)
Holocene Advisors LP313,094$48m0.12%Addedn.a.14 Aug 2025 (the filing on sec.gov)
Man Group PLC267,603$41m0.08%Newnew14 Aug 2025 (the filing on sec.gov)
Freestone Grove Partners LP154,317$24m0.18%Added+17,34514 Aug 2025 (the filing on sec.gov)
Verition Fund Management LLC87,511$13m0.06%Trimmed-78,96114 Aug 2025 (the filing on sec.gov)
Walleye Capital LLC73,822$11munder 0.1%Newnew13 Aug 2025 (the filing on sec.gov)
Quantbot Technologies LP23,242$3.6m0.09%Newnew13 Aug 2025 (the filing on sec.gov)
Winton Group Ltd12,877$2.0m0.10%Newnew14 Aug 2025 (the filing on sec.gov)

Largest increases and reductions, by shares

Q1 2025 to Q2 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
5 in Q3 2024 to 5 in Q2 2026

Tracked managers listing it, at least.

0510152017201820192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
IRTC by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20162$45mn.a.n.a.
Q1 20171$44mn.a.n.a.
Q2 20174$163mn.a.n.a.
Q3 20174$191mn.a.n.a.
Q4 20174$220mn.a.n.a.
Q1 20185$249mn.a.n.a.
Q2 20185$365mn.a.n.a.
Q3 20187$388mn.a.n.a.
Q4 20188$302mn.a.n.a.
Q1 20196$238mn.a.n.a.
Q2 20198$344mn.a.n.a.
Q3 20196$213mn.a.n.a.
Q4 20197$303mn.a.n.a.
Q1 20206$306mn.a.n.a.
Q2 20207$636mn.a.n.a.
Q3 202010$1.4bnn.a.n.a.
Q4 202011$1.7bnn.a.n.a.
Q1 202110$663mn.a.n.a.
Q2 20218$152mn.a.n.a.
Q3 20215$44mn.a.n.a.
Q4 20215$213mn.a.n.a.
Q1 20229$700mn.a.n.a.
Q2 20229$434mn.a.n.a.
Q3 20227$555mn.a.n.a.
Q4 20227$521mn.a.n.a.
Q1 202310$714mn.a.n.a.
Q2 20238$608mn.a.n.a.
Q3 20235$602mn.a.n.a.
Q4 20239$835m81
Q1 20247$851m34
Q2 20245$864m42
Q3 20245$475m14
Q4 20244$406m03
Q1 20256$603m60
Q2 202510$847m64
Q3 20258$938m53
Q4 20258$895m2112
Q1 20267$718m1419
Q2 20265$516m1317

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

IRTC and LLY →IRTC and JNJ →IRTC and VRTX →Choose a stock to compare with IRTC →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own IRTC, latest filings →Back to the 13F Explorer →