Ticker · CUSIP 16965P202
Holders (tracked)
2
Combined shares
1,141,458
Combined value
$33.82M
Last close
$47.09
Quarter
2025Q4
Price · 1Y$47.09+32.01 (+212.34%)H $49.17 · L $14.45 · Avg Vol 28K
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
Price is +58.9% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
3 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−4,796 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−16,400 shares · 2025Q4Position
- Renaissance Technologies trimmed2025-11-13−10,600 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of IMOS…
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 |
|---|---|---|---|---|
| Renaissance Technologies | 2018Q4 | $17.22 | +173.5% | $53.0M |
| Ken Griffin (Citadel Advisors) | 2019Q1 | $18.19 | +158.8% | $766K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to0
—
Trimmed2
- Renaissance Technologies−16,400$486K
- Ken Griffin (Citadel Advisors)−4,796$142K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 2 | $54.3M |
| 2022Q2 | 3 | $38.2M |
| 2022Q3 | 4 | $28.8M |
| 2022Q4 | 6 | $32.5M |
| 2023Q1 | 4 | $37.5M |
| 2023Q2 | 6 | $35.6M |
| 2023Q3 | 6 | $34.5M |
| 2023Q4 | 5 | $40.5M |
| 2024Q1 | 7 | $48.4M |
| 2024Q2 | 4 | $39.0M |
| 2024Q3 | 2 | $29.0M |
| 2024Q4 | 2 | $22.6M |
| 2025Q1 | 4 | $20.0M |
| 2025Q2 | 4 | $21.7M |
| 2025Q3 | 3 | $22.5M |
| 2025Q4 | 2 | $33.8M |
Who owns IMOS
2 super-investors · 2025Q4
Tracked stake
1.14M
shares
Combined value
$34M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Trim2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 1.13M | $33M |
| 2 | Ken Griffin Citadel Advisors | 16.3K | $483K |
Recent moves
20 transactions
- −4,796 · 2025Q4
- −16,400 · 2025Q4
- −10,600 · 2025Q3
- −16,000 · 2025Q2
- −13,990 · 2025Q1
- −15,600 · 2025Q1
- −3,989 · 2024Q4
- −36,801 · 2024Q4
- −7,936 · 2024Q3
- −249 · 2024Q3
- −16,300 · 2024Q3
- −1,000 · 2024Q2
- −17,034 · 2024Q2
- ADDBlackRock+4,410 · 2024Q2
- −6,100 · 2024Q2
- −2,330 · 2024Q1
- +24,970 · 2024Q1
- +2,800 · 2024Q1
- ADDBlackRock+8,204 · 2024Q1
- −5,904 · 2023Q4
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