Ticker · CUSIP 500946108
Holders (tracked)
7
Combined shares
707,652
Combined value
$5.67M
Last close
$14.39
Quarter
2025Q4
Price · 1Y$14.39+0.49 (+3.53%)H $51.36 · L $5.28 · Avg Vol 275K
Position opened
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
Price is +79.7% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
12 events
- Two Sigma Investments added2026-02-17+14,529 shares · 2025Q4Position
- Steve Cohen (Point72) exited2026-02-17−531,969 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−95,599 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−99,241 shares · 2025Q4Position
- AQR Capital Management trimmed2026-02-17−7,760 shares · 2025Q4Position
- Renaissance Technologies added2026-02-12+34,500 shares · 2025Q4Position
- AQR Capital Management opened position2025-11-14+48,407 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+4,650 shares · 2025Q3Position
- Steve Cohen (Point72) trimmed2025-11-14−8,105 shares · 2025Q3Position
- Two Sigma Investments added2025-11-14+27,709 shares · 2025Q3Position
- D.E. Shaw & Co. exited2025-11-14−24,383 shares · 2025Q3Position
- Renaissance Technologies trimmed2025-11-13−5,300 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of KRRO…
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 |
|---|---|---|---|---|
| Ken Griffin (Citadel Advisors) | 2023Q4 | $11.11 | +29.5% | $4.0M |
| Ken Griffin (Citadel Advisors) | 2023Q4 | $11.11 | +29.5% | $4.0M |
| Ken Griffin (Citadel Advisors) | 2023Q4 | $11.11 | +29.5% | $4.0M |
| Renaissance Technologies | 2023Q4 | $14.56 | -1.2% | $1.1M |
| Two Sigma Investments | 2024Q2 | $25.81 | -44.2% | $1.1M |
| Izzy Englander (Millennium Mgmt) | 2024Q1 | $32.88 | -56.2% | $2.3M |
| AQR Capital Management | 2025Q3 | $47.89 | -70.0% | $585K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to2
- Renaissance Technologies+34,500$276K
- Two Sigma Investments+14,529$116K
Trimmed3
- Izzy Englander (Millennium Mgmt)−99,241$795K
- Ken Griffin (Citadel Advisors)−95,599$766K
- AQR Capital Management−7,760$62K
Exited1
- Steve Cohen (Point72)−531,969$25.5M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2023Q4 | 5 | $42.1M |
| 2024Q1 | 5 | $84.0M |
| 2024Q2 | 5 | $50.2M |
| 2024Q3 | 4 | $35.4M |
| 2024Q4 | 3 | $36.5M |
| 2025Q1 | 3 | $15.4M |
| 2025Q2 | 6 | $15.7M |
| 2025Q3 | 6 | $52.7M |
| 2025Q4 | 7 | $5.7M |
Who owns KRRO
7 super-investors · 2025Q4
Tracked stake
707.7K
shares
Combined value
$6M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added2Trim5
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Ken Griffin Citadel Advisors | 279.0K | $2M |
| 2 | Izzy Englander Millennium Mgmt | 161.1K | $1M |
| 3 | Two Sigma Investments | 79.0K | $633K |
| 4 | Renaissance Technologies | 74.9K | $600K |
| 5 | Ken Griffin Citadel Advisors | 58.3K | $467K |
| 6 | AQR Capital Management | 40.6K | $326K |
| 7 | Ken Griffin Citadel Advisors | 14.7K | $118K |
Recent moves
20 transactions
- −7,760 · 2025Q4
- +14,529 · 2025Q4
- −531,969 · 2025Q4
- −99,241 · 2025Q4
- −95,599 · 2025Q4
- +34,500 · 2025Q4
- +48,407 · 2025Q3
- +4,650 · 2025Q3
- −8,105 · 2025Q3
- +27,709 · 2025Q3
- SOLDD.E. Shaw & Co.−24,383 · 2025Q3
- −5,300 · 2025Q3
- +146,814 · 2025Q2
- +24,383 · 2025Q2
- +19,184 · 2025Q2
- +36,746 · 2025Q2
- +45,700 · 2025Q2
- +26,893 · 2025Q1
- +13,061 · 2025Q1
- −13,052 · 2024Q4
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