Ticker · CUSIP 38942Q202
Holders (tracked)
2
Combined shares
103,155
Combined value
$679.8K
Last close
$0.60
Quarter
2025Q4
Price · 1Y$0.60-0.95 (-61.10%)H $6.74 · L $0.51 · Avg Vol 361K
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is -90.8% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
4 events
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−19,533 shares · 2025Q4Position
- Renaissance Technologies added2026-02-12+18,300 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−18,482 shares · 2025Q3Position
- Renaissance Technologies added2025-11-13+34,000 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of CALC…
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 | 2024Q4 | $3.98 | -84.9% | $53K |
| Izzy Englander (Millennium Mgmt) | 2024Q1 | $4.02 | -85.0% | $9K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to1
- Renaissance Technologies+18,300$121K
Trimmed1
- Izzy Englander (Millennium Mgmt)−19,533$129K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2024Q1 | 1 | $275K |
| 2024Q2 | 2 | $296K |
| 2024Q3 | 1 | $245K |
| 2024Q4 | 2 | $408K |
| 2025Q1 | 2 | $181K |
| 2025Q2 | 2 | $138K |
| 2025Q3 | 2 | $319K |
| 2025Q4 | 2 | $680K |
Who owns CALC
2 super-investors · 2025Q4
Tracked stake
103.2K
shares
Combined value
$680K
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added1Trim1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 88.3K | $582K |
| 2 | Izzy Englander Millennium Mgmt | 14.9K | $98K |
Recent moves
14 transactions
- −19,533 · 2025Q4
- +18,300 · 2025Q4
- −18,482 · 2025Q3
- +34,000 · 2025Q3
- −6,518 · 2025Q2
- +584 · 2025Q2
- −12,669 · 2025Q1
- −7,784 · 2025Q1
- +16,824 · 2024Q4
- +43,200 · 2024Q4
- −6,354 · 2024Q3
- −4,547 · 2024Q2
- NEWBlackRock+13,242 · 2024Q2
- +66,134 · 2024Q1
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- CALC insider tradingEvery Form 4 filing by CALC officers, directors, and 10%+ holders.
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