Ticker · CUSIP 45780R101
Holders (tracked)
16
Combined shares
2,385,105
Combined value
$618.67M
Last close
$297.64
Quarter
2025Q4
Price · 1Y$297.64+141.44 (+90.55%)H $341.42 · L $152.00 · Avg Vol 391K
Congress buyCongress sell
Tracked holders · last 8 quarters
+4 vs previous quarter over the last 8.
Price is +14.7% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
24 events
- +30,144 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−18,282 shares · 2025Q4Position
- D.E. Shaw & Co. opened position2026-02-17+9,509 shares · 2025Q4Position
- AQR Capital Management added2026-02-17+1,622 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−13,929 shares · 2025Q4Position
- Jeremy Grantham (GMO) trimmed2026-02-17−53,252 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+328,725 shares · 2025Q4Position
- Wellington Management trimmed2026-02-17−8,420 shares · 2025Q4Position
- −35,000 shares · 2025Q4Position
- Ray Dalio (Bridgewater Associates) added2026-02-13+7,064 shares · 2025Q4Position
- Renaissance Technologies opened position2026-02-12+17,620 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+124,752 shares · 2025Q4Position
- −300 shares · 2025Q4Position
- AQR Capital Management added2025-11-14+802 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+23,286 shares · 2025Q3Position
- Two Sigma Investments trimmed2025-11-14−87,809 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+243,768 shares · 2025Q3Position
- Wellington Management trimmed2025-11-14−51,103 shares · 2025Q3Position
- −22,857 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−57,593 shares · 2025Q3Position
- +2,720 shares · 2025Q3Position
- Jeremy Grantham (GMO) trimmed2025-11-13−50,788 shares · 2025Q3Position
- −6,790 shares · 2025Q3Position
- Norges Bank (Norway SWF) trimmed2025-11-12−60,897 shares · 2024Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of IBP…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Ron Baron (Baron Capital / BAMCO) | 2017Q4 | $83.49 | +256.5% | $126.0M |
| D.E. Shaw & Co. | 2019Q2 | $96.25 | +209.2% | $2.8M |
| Paul Tudor Jones (Tudor Investment) | 2016Q2 | $119.39 | +149.3% | $9.0M |
| First Eagle Investment Management | 2023Q2 | $174.77 | +70.3% | $18.2M |
| Renaissance Technologies | 2016Q1 | $175.24 | +69.9% | $5.2M |
| Two Sigma Investments | 2016Q2 | $176.33 | +68.8% | $6.8M |
| T. Rowe Price | 2020Q4 | $215.96 | +37.8% | $461.7M |
| Ray Dalio (Bridgewater Associates) | 2022Q4 | $223.85 | +33.0% | $2.9M |
| AQR Capital Management | 2016Q1 | $229.48 | +29.7% | $2.0M |
| Wellington Management | 2017Q2 | $236.01 | +26.1% | $15.5M |
| Jeremy Grantham (GMO) | 2024Q3 | $240.41 | +23.8% | $9.7M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $243.34 | +22.3% | $3.4M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $252.35 | +17.9% | $2.1M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $252.35 | +17.9% | $2.1M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $252.35 | +17.9% | $2.1M |
| Norges Bank (Norway SWF) | 2017Q3 | $516.19 | -42.3% | $37.1M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions4
- Norges Bank (Norway SWF)+124,752$32.4M
- Paul Tudor Jones (Tudor Investment)+30,144$7.8M
- Renaissance Technologies+17,620$4.6M
- D.E. Shaw & Co.+9,509$2.5M
Added to3
- Ray Dalio (Bridgewater Associates)+7,064$1.8M
- AQR Capital Management+1,622$421K
- T. Rowe Price+328,725$85K
Trimmed6
- Jeremy Grantham (GMO)−53,252$13.8M
- Ron Baron (Baron Capital / BAMCO)−35,000$9.1M
- Ken Griffin (Citadel Advisors)−18,282$4.7M
- Izzy Englander (Millennium Mgmt)−13,929$3.6M
- Wellington Management−8,420$2.2M
- First Eagle Investment Management−300$78K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 10 | $14.10B |
| 2022Q2 | 10 | $4.02B |
| 2022Q3 | 11 | $488.2M |
| 2022Q4 | 14 | $521.5M |
| 2023Q1 | 16 | $701.6M |
| 2023Q2 | 13 | $786.0M |
| 2023Q3 | 18 | $717.5M |
| 2023Q4 | 15 | $1.01B |
| 2024Q1 | 15 | $1.45B |
| 2024Q2 | 16 | $1.18B |
| 2024Q3 | 15 | $358.3M |
| 2024Q4 | 14 | $240.0M |
| 2025Q1 | 14 | $222.6M |
| 2025Q2 | 11 | $354.3M |
| 2025Q3 | 12 | $493.0M |
| 2025Q4 | 16 | $618.7M |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2026-03-24 | David J. Taylor | Buy | $1K – $15K | PDF ↗ |
| 2026-03-12 | David J. Taylor | Buy | $1K – $15K | PDF ↗ |
| 2026-02-26 | David J. Taylor | Sell | $1K – $15K | PDF ↗ |
| 2026-01-29 | David J. Taylor | Buy | $1K – $15K | PDF ↗ |
| 2026-01-16 | David J. Taylor | Sell | $1K – $15K | PDF ↗ |
| 2026-01-16 | David J. Taylor | Sell | $1K – $15K | PDF ↗ |
| 2025-11-03 | David J. Taylor | Buy | $1K – $15K | PDF ↗ |
| 2025-11-03 | David J. Taylor | Buy | $1K – $15K | PDF ↗ |
| 2025-08-13 | David J. Taylor | Sell | $1K – $15K | PDF ↗ |
| 2025-08-07 | David J. Taylor | Sell | $1K – $15K | PDF ↗ |
| 2025-05-15 | David J. Taylor | Buy | $1K – $15K | PDF ↗ |
| 2025-02-05 | David J. Taylor | Buy | $1K – $15K | PDF ↗ |
Who owns IBP
16 super-investors · 2025Q4
Tracked stake
2.39M
shares
Combined value
$619M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New4Added3Trim8Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | T. Rowe Price | 1.55M | $402M |
| 2 | Ron Baron Baron Capital / BAMCO | 423.2K | $110M |
| 3 | Norges Bank Norway SWF | 124.8K | $32M |
| 4 | First Eagle Investment Management | 61.0K | $16M |
| 5 | Wellington Management | 52.1K | $14M |
| 6 | Jeremy Grantham GMO | 32.6K | $8M |
| 7 | Paul Tudor Jones Tudor Investment | 30.1K | $8M |
| 8 | Two Sigma Investments | 22.7K | $6M |
| 9 | Ken Griffin Citadel Advisors | 19.0K | $5M |
| 10 | Renaissance Technologies | 17.6K | $5M |
| 11 | Izzy Englander Millennium Mgmt | 11.6K | $3M |
| 12 | Ray Dalio Bridgewater Associates | 9.8K | $3M |
| 13 | D.E. Shaw & Co. | 9.5K | $2M |
| 14 | Ken Griffin Citadel Advisors | 7.0K | $2M |
| 15 | AQR Capital Management | 6.8K | $2M |
| 16 | Ken Griffin Citadel Advisors | 6.3K | $2M |
Recent moves
20 transactions
- +30,144 · 2025Q4
- −35,000 · 2025Q4
- +328,725 · 2025Q4
- −53,252 · 2025Q4
- +9,509 · 2025Q4
- +1,622 · 2025Q4
- −8,420 · 2025Q4
- −13,929 · 2025Q4
- −18,282 · 2025Q4
- +7,064 · 2025Q4
- +17,620 · 2025Q4
- +124,752 · 2025Q4
- −300 · 2025Q4
- −87,809 · 2025Q3
- +23,286 · 2025Q3
- +243,768 · 2025Q3
- −51,103 · 2025Q3
- −22,857 · 2025Q3
- +802 · 2025Q3
- −57,593 · 2025Q3
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