Ticker · CUSIP 394357107
Holders (tracked)
5
Combined shares
142,959
Combined value
$3.18M
Last close
$23.70
Quarter
2025Q4
Price · 1Y$23.70+2.64 (+12.56%)H $25.42 · L $20.40 · Avg Vol 18K
Position opened
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is +6.6% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
9 events
- AQR Capital Management trimmed2026-02-17−1,375 shares · 2025Q4Position
- Two Sigma Investments added2026-02-17+5,295 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−4,004 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−10,687 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−1,200 shares · 2025Q4Position
- AQR Capital Management added2025-11-14+8,107 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−27,494 shares · 2025Q3Position
- Two Sigma Investments opened position2025-11-14+9,762 shares · 2025Q3Position
- Renaissance Technologies trimmed2025-11-13−10,900 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of GCBC…
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 |
|---|---|---|---|---|
| Two Sigma Investments | 2025Q3 | $22.47 | +5.5% | $357K |
| Renaissance Technologies | 2021Q2 | $24.48 | -3.2% | $1.2M |
| Izzy Englander (Millennium Mgmt) | 2016Q4 | $26.00 | -8.8% | $864K |
| Ken Griffin (Citadel Advisors) | 2022Q1 | $27.02 | -12.3% | $579K |
| AQR Capital Management | 2022Q3 | $29.27 | -19.0% | $411K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to1
- Two Sigma Investments+5,295$118K
Trimmed4
- Izzy Englander (Millennium Mgmt)−10,687$238K
- Ken Griffin (Citadel Advisors)−4,004$89K
- AQR Capital Management−1,375$31K
- Renaissance Technologies−1,200$27K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 3 | $2.6M |
| 2022Q2 | 2 | $6.9M |
| 2022Q3 | 3 | $9.9M |
| 2022Q4 | 3 | $10.7M |
| 2023Q1 | 2 | $8.1M |
| 2023Q2 | 2 | $11.7M |
| 2023Q3 | 2 | $9.3M |
| 2023Q4 | 2 | $12.1M |
| 2024Q1 | 1 | $11.4M |
| 2024Q2 | 2 | $14.0M |
| 2024Q3 | 2 | $950K |
| 2024Q4 | 3 | $1.7M |
| 2025Q1 | 3 | $4.7M |
| 2025Q2 | 4 | $5.0M |
| 2025Q3 | 5 | $3.5M |
| 2025Q4 | 5 | $3.2M |
Who owns GCBC
5 super-investors · 2025Q4
Tracked stake
143.0K
shares
Combined value
$3M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added1Trim4
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 49.7K | $1M |
| 2 | Izzy Englander Millennium Mgmt | 36.5K | $810K |
| 3 | Ken Griffin Citadel Advisors | 24.4K | $543K |
| 4 | AQR Capital Management | 17.3K | $385K |
| 5 | Two Sigma Investments | 15.1K | $335K |
Recent moves
20 transactions
- −1,375 · 2025Q4
- −10,687 · 2025Q4
- −4,004 · 2025Q4
- +5,295 · 2025Q4
- −1,200 · 2025Q4
- +8,107 · 2025Q3
- +9,762 · 2025Q3
- −27,494 · 2025Q3
- −10,900 · 2025Q3
- +10,591 · 2025Q2
- +19,039 · 2025Q2
- +7,100 · 2025Q2
- +41,077 · 2025Q1
- +38,400 · 2025Q1
- +14,523 · 2024Q4
- +8,900 · 2024Q4
- −300 · 2024Q3
- ADDBlackRock+12,572 · 2024Q2
- +7,700 · 2024Q2
- TRIMBlackRock−15,866 · 2024Q1
Embed this chart
Paste this iframe anywhere to embed the live GCBC chart.
<iframe src="https://openstocks.me/embed/stocks/GCBC" width="100%" height="480" frameborder="0" loading="lazy" title="GCBC chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>Explore related topics
- GCBC insider tradingEvery Form 4 filing by GCBC officers, directors, and 10%+ holders.
- GCBC analyst target pricesWall Street consensus target, analyst-by-analyst breakdown, and revision history.
- Most popular hedge-fund stocksSee where this ticker ranks against the broader smart-money consensus.
- All insider tradingCross-ticker view of where corporate insiders are buying on the open market.
- Congress stock tradesReal-time PTR disclosures filed under the STOCK Act.
- Smart-money signalsComposite signals where institutional, insider and Congress flows converge.