IRTC
iRhythm Holdings, Inc.Marquee-fund ownership over time
This quarter's activity
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Citadel Advisors re-entered | Q3 2024(8Q snapshot) | 7Q | $66 | $111 | +67% |
| Millennium Management re-entered | Q3 2024(8Q snapshot) | 7Q | $66 | $111 | +67% |
| Point72 Asset Management re-entered | Q3 2024(8Q snapshot) | 7Q | $66 | $111 | +67% |
| D.E. Shaw re-entered | Q4 2024(8Q snapshot) | 6Q | $83 | $111 | +33% |
| AQR Capital Management | Q1 2025(8Q snapshot) | 5Q | $112 | $111 | -1% |
| Renaissance Technologies | Q2 2025(8Q snapshot) | 4Q | $140 | $111 | -21% |
| Two Sigma Investments re-entered | Q3 2025(8Q snapshot) | 3Q | $162 | $111 | -32% |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Past holders
Funds that exited at some point| Fund | Last entry | Exited | Entry → Exit | Return |
|---|---|---|---|---|
| Bridgewater Associates 2× in & out | Q1 2026 | Q2 2026 | → $114 | -21% |
| Maverick Capital | Q2 2023 | Q4 2023 | → $80 | -39% |
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at iRhythm Holdings, Inc.. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from Jun 3, 2026 — the most recent Form 4 on file — not from today.
- Form 40001850687-26-000008Jun 3, 2026
- Form 40001929535-26-000011Jun 3, 2026
- Form 40001932682-26-000008Jun 1, 2026
- Form 40001850152-26-000008Jun 1, 2026
- Form 40002074661-26-000004Jun 1, 2026
- Form 40001612451-26-000008Jun 1, 2026
- Form 40001738783-26-000003May 29, 2026
- Form 40001527009-26-000003May 29, 2026
- Form 40001597450-26-000003May 29, 2026
- Form 40001188264-26-000003May 29, 2026
- Form 40001203567-26-000003May 29, 2026
- Form 40001316065-26-000010May 29, 2026
- Form 40001643528-26-000003May 29, 2026
- Form 40001316065-26-000007May 12, 2026
- Form 40001506228-26-000004May 5, 2026
Fundamentals
XBRL · iRhythm Holdings, Inc.Annual figures sourced directly from iRhythm Holdings, Inc.'s 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for iRhythm Holdings, Inc. — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-KMaterial eventJun 5, 2026
- 8-KMaterial eventMay 28, 2026
- 10-QQuarterly reportApr 30, 2026
- 8-KMaterial eventApr 30, 2026
- DEF 14AProxy statementApr 17, 2026
- 8-KMaterial eventApr 1, 2026
- 8-KMaterial eventMar 12, 2026
- 10-KAnnual reportFeb 19, 2026
- 8-KMaterial eventFeb 19, 2026
- 8-KMaterial eventNov 12, 2025
- 10-QQuarterly reportOct 30, 2025
- 8-KMaterial eventOct 30, 2025
- 10-QQuarterly reportJul 31, 2025
- 8-KMaterial eventJul 31, 2025
- 8-KMaterial eventJul 7, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Citadel Advisors | Q2 2026 | open | $114 | $111 | -3% |
| Two Sigma Investments | Q2 2026 | open | $114 | $111 | -3% |
| Millennium Management | Q2 2026 | open | $0.00 | — | +0% |
| Point72 Asset Management | Q2 2026 | open | $0.00 | — | +0% |
| Bridgewater Associates | Q1 2026 | Q2 2026 | $144 | $114 | -21% |
| Citadel Advisors | Q4 2025 | Q2 2026 | $0.00 | — | +0% |
| Two Sigma Investments | Q3 2025 | Q1 2026 | $162 | $148 | -9% |
| D.E. Shaw | Q3 2025 | open | $162 | $111 | -32% |
| Citadel Advisors | Q2 2025 | Q3 2025 | $0.00 | — | +0% |
| Point72 Asset Management | Q2 2025 | Q3 2025 | $0.00 | — | +0% |
| Point72 Asset Management | Q2 2025 | open | $141 | $111 | -21% |
| Renaissance Technologies | Q2 2025 | open | $140 | $111 | -21% |
| AQR Capital Management | Q1 2025 | open | $112 | $111 | -1% |
| D.E. Shaw | Q4 2024 | Q1 2025 | $83 | $112 | +34% |
| Citadel Advisors | Q3 2024 | Q1 2026 | $66 | $148 | +123% |
| Millennium Management | Q3 2024 | open | $66 | $111 | +67% |
| Point72 Asset Management | Q3 2024 | Q1 2025 | $66 | $112 | +69% |
| Maverick Capital | Q2 2023 | Q4 2023 | $131 | $80 | -39% |
| Bridgewater Associates | Q3 2021 | Q2 2025 | $46 | $140 | +208% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.