Ticker · CUSIP 39540F309
Holders (tracked)
1
Combined shares
19,527
Combined value
$35.3K
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 7 quarters.
SEC event timeline
3 events
- +19,527 shares · 2025Q413F
- Renaissance Technologies exited2026-02-12−25,700 shares · 2025Q413F
- Renaissance Technologies opened position2025-11-13+25,700 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- Ken Griffin (Citadel Advisors)+19,527$35K
Added to0
—
Trimmed0
—
Exited1
- Renaissance Technologies−25,700$35K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q3 | 2 | $57 |
| 2022Q4 | 2 | $66K |
| 2023Q1 | 2 | $20K |
| 2024Q3 | 1 | $14K |
| 2025Q1 | 1 | $41K |
| 2025Q3 | 1 | $35K |
| 2025Q4 | 1 | $35K |
Who owns GRNQ
1 super-investors · 2025Q4
Tracked stake
19.5K
shares
Combined value
$35K
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Ken Griffin Citadel Advisors | 19.5K | $35K |
Recent moves
9 transactions
- +19,527 · 2025Q4
- −25,700 · 2025Q4
- +25,700 · 2025Q3
- −14,143 · 2024Q4
- +14,143 · 2024Q3
- −13,484 · 2023Q2
- −4,523 · 2023Q1
- +6,571 · 2022Q4
- +11,436 · 2022Q3
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