Ticker · CUSIP 36241U106
Holders (tracked)
6
Combined shares
1,017,263
Combined value
$6.32M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
SEC event timeline
6 events
- Ken Griffin (Citadel Advisors) added2026-02-17+61,264 shares · 2025Q413F
- Two Sigma Investments added2026-02-17+109,106 shares · 2025Q413F
- +45,843 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−269,608 shares · 2025Q413F
- Two Sigma Investments added2025-11-14+124,360 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+265,800 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
- Izzy Englander (Millennium Mgmt)+45,843$285K
Added to2
- Two Sigma Investments+109,106$678K
- Ken Griffin (Citadel Advisors)+61,264$380K
Trimmed1
- Renaissance Technologies−269,608$1.7M
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 3 | $3.4M |
| 2022Q2 | 3 | $2.9M |
| 2022Q3 | 3 | $2K |
| 2022Q4 | 3 | $156K |
| 2023Q1 | 3 | $157K |
| 2023Q2 | 3 | $666K |
| 2023Q3 | 4 | $558K |
| 2023Q4 | 5 | $656K |
| 2024Q1 | 6 | $695K |
| 2024Q2 | 3 | $1.1M |
| 2024Q3 | 5 | $864K |
| 2024Q4 | 5 | $811K |
| 2025Q1 | 5 | $945K |
| 2025Q2 | 3 | $1.7M |
| 2025Q3 | 5 | $3.5M |
| 2025Q4 | 6 | $6.3M |
Who owns GSIT
6 super-investors · 2025Q4
Tracked stake
1.02M
shares
Combined value
$6M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added4Trim1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Two Sigma Investments | 500.4K | $3M |
| 2 | Ken Griffin Citadel Advisors | 172.3K | $1M |
| 3 | Renaissance Technologies | 116.3K | $722K |
| 4 | Ken Griffin Citadel Advisors | 99.2K | $616K |
| 5 | Ken Griffin Citadel Advisors | 83.3K | $517K |
| 6 | Izzy Englander Millennium Mgmt | 45.8K | $285K |
Recent moves
20 transactions
- +45,843 · 2025Q4
- +61,264 · 2025Q4
- +109,106 · 2025Q4
- −269,608 · 2025Q4
- +124,360 · 2025Q3
- +265,800 · 2025Q3
- +23,779 · 2025Q2
- −16,600 · 2025Q2
- +173,159 · 2025Q1
- −27,541 · 2025Q1
- +11,149 · 2024Q4
- −41,500 · 2024Q4
- −9,690 · 2024Q3
- −49,885 · 2024Q3
- −28,334 · 2024Q2
- ADDBlackRock+4,263 · 2024Q2
- −72,115 · 2024Q2
- −25,810 · 2024Q1
- −93,857 · 2024Q1
- TRIMBlackRock−1,237 · 2024Q1
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