Ticker · CUSIP 450056106
Holders (tracked)
12
Combined shares
4,318,984
Combined value
$677.35M
Last close
$122.61
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is -21.8% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
22 events
- Wellington Management trimmed2026-02-17−14,406 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) exited2026-02-17−8,892 shares · 2025Q413F
- D.E. Shaw & Co. added2026-02-17+23,544 shares · 2025Q413F
- AQR Capital Management added2026-02-17+8,744 shares · 2025Q413F
- Two Sigma Investments exited2026-02-17−2,100 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+548,519 shares · 2025Q413F
- Steve Cohen (Point72) trimmed2026-02-17−128,644 shares · 2025Q413F
- T. Rowe Price added2026-02-17+162,479 shares · 2025Q413F
- +11,348 shares · 2025Q413F
- Sands Capital Management trimmed2026-02-13−536,465 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−17,500 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+56,237 shares · 2025Q413F
- Steve Cohen (Point72) added2025-11-14+26,014 shares · 2025Q313F
- Two Sigma Investments added2025-11-14+200 shares · 2025Q313F
- AQR Capital Management added2025-11-14+24,436 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+89,289 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−58,450 shares · 2025Q313F
- T. Rowe Price added2025-11-14+313,394 shares · 2025Q313F
- Wellington Management added2025-11-14+27,346 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−19,800 shares · 2025Q313F
- Sands Capital Management trimmed2025-11-13−679,417 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-12−83,926 shares · 2024Q313F
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of IRTC…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| T. Rowe Price | 2016Q4 | $3.77 | +3151.5% | $61.6M |
| Renaissance Technologies | 2017Q1 | $130.06 | -5.7% | $12.7M |
| Wellington Management | 2019Q1 | $138.74 | -11.6% | $50.1M |
| Ray Dalio (Bridgewater Associates) | 2021Q2 | $149.99 | -18.3% | $1.4M |
| Izzy Englander (Millennium Mgmt) | 2016Q4 | $151.75 | -19.2% | $101.3M |
| D.E. Shaw & Co. | 2017Q2 | $158.02 | -22.4% | $44.2M |
| Steve Cohen (Point72) | 2016Q4 | $158.18 | -22.5% | $26.9M |
| AQR Capital Management | 2018Q1 | $159.59 | -23.2% | $4.9M |
| Ken Griffin (Citadel Advisors) | 2017Q1 | $173.78 | -29.4% | $1.1M |
| Ken Griffin (Citadel Advisors) | 2017Q1 | $173.78 | -29.4% | $1.1M |
| Sands Capital Management | 2020Q3 | $179.47 | -31.7% | $208.4M |
| Norges Bank (Norway SWF) | 2017Q4 | $54275.47 | -99.8% | $6.9M |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions2
- Norges Bank (Norway SWF)+56,237$10.0M
- Ray Dalio (Bridgewater Associates)+11,348$2.0M
Added to4
- Izzy Englander (Millennium Mgmt)+548,519$97.3M
- D.E. Shaw & Co.+23,544$4.2M
- AQR Capital Management+8,744$1.6M
- T. Rowe Price+162,479$29K
Trimmed4
- Sands Capital Management−536,465$95.2M
- Steve Cohen (Point72)−128,644$22.8M
- Renaissance Technologies−17,500$3.1M
- Wellington Management−14,406$2.6M
Exited2
- Ken Griffin (Citadel Advisors)−8,892$1.5M
- Two Sigma Investments−2,100$361K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 13 | $56.95B |
| 2022Q2 | 17 | $74.01B |
| 2022Q3 | 13 | $72.7M |
| 2022Q4 | 13 | $319.2M |
| 2023Q1 | 16 | $678.1M |
| 2023Q2 | 17 | $625.9M |
| 2023Q3 | 17 | $543.7M |
| 2023Q4 | 13 | $589.1M |
| 2024Q1 | 16 | $721.5M |
| 2024Q2 | 13 | $676.4M |
| 2024Q3 | 12 | $255.6M |
| 2024Q4 | 10 | $326.2M |
| 2025Q1 | 10 | $426.3M |
| 2025Q2 | 13 | $706.6M |
| 2025Q3 | 12 | $659.6M |
| 2025Q4 | 12 | $677.4M |
Who owns IRTC
12 super-investors · 2025Q4
Tracked stake
4.32M
shares
Combined value
$677M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added4Trim4Sold2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Sands Capital Management | 1.70M | $302M |
| 2 | Izzy Englander Millennium Mgmt | 826.4K | $147M |
| 3 | Wellington Management | 408.3K | $72M |
| 4 | D.E. Shaw & Co. | 360.7K | $64M |
| 5 | Steve Cohen Point72 | 219.5K | $39M |
| 6 | Renaissance Technologies | 103.9K | $18M |
| 7 | Ken Griffin Citadel Advisors | 82.1K | $15M |
| 8 | Norges Bank Norway SWF | 56.2K | $10M |
| 9 | AQR Capital Management | 40.2K | $7M |
| 10 | Ray Dalio Bridgewater Associates | 11.3K | $2M |
| 11 | Ken Griffin Citadel Advisors | 8.7K | $2M |
| 12 | T. Rowe Price | 502.1K | $89K |
Recent moves
20 transactions
- +8,744 · 2025Q4
- −8,892 · 2025Q4
- +162,479 · 2025Q4
- +548,519 · 2025Q4
- +23,544 · 2025Q4
- −128,644 · 2025Q4
- −14,406 · 2025Q4
- −2,100 · 2025Q4
- −536,465 · 2025Q4
- +11,348 · 2025Q4
- −17,500 · 2025Q4
- +56,237 · 2025Q4
- +26,014 · 2025Q3
- +313,394 · 2025Q3
- −58,450 · 2025Q3
- +200 · 2025Q3
- +89,289 · 2025Q3
- +27,346 · 2025Q3
- +24,436 · 2025Q3
- −19,800 · 2025Q3
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