Ticker · CUSIP 366505105
Holders (tracked)
16
Combined shares
27,762,063
Combined value
$482.32M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+4 vs previous quarter over the last 8.
SEC event timeline
27 events
- AQR Capital Management added2026-02-17+414,592 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−1,653,400 shares · 2025Q413F
- D.E. Shaw & Co. added2026-02-17+1,119,406 shares · 2025Q413F
- Howard Marks (Oaktree Capital) trimmed2026-02-17−14,800,000 shares · 2025Q413F
- +45,866 shares · 2025Q413F
- Prem Watsa (Fairfax Financial) trimmed2026-02-17−41,400 shares · 2025Q413F
- Two Sigma Investments opened position2026-02-17+636,849 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+395,392 shares · 2025Q413F
- Steve Cohen (Point72) added2026-02-17+199,355 shares · 2025Q413F
- T. Rowe Price added2026-02-17+17,975 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−771,000 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+1,677,371 shares · 2025Q413F
- +244,261 shares · 2025Q413F
- Mario Gabelli (GAMCO) added2026-02-05+48,319 shares · 2025Q413F
- −425,055 shares · 2025Q313F
- Steve Cohen (Point72) added2025-11-14+63,569 shares · 2025Q313F
- Two Sigma Investments exited2025-11-14−104,821 shares · 2025Q313F
- D.E. Shaw & Co. trimmed2025-11-14−401,476 shares · 2025Q313F
- Lee Ainslie (Maverick Capital) exited2025-11-14−65,716 shares · 2025Q313F
- T. Rowe Price added2025-11-14+8,668 shares · 2025Q313F
- AQR Capital Management added2025-11-14+224,012 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−941,720 shares · 2025Q313F
- Prem Watsa (Fairfax Financial) trimmed2025-11-14−2,500 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+965,414 shares · 2025Q313F
- Jeremy Grantham (GMO) opened position2025-11-13+39,085 shares · 2025Q313F
- Howard Marks (Oaktree Capital) trimmed2025-11-13−5,000,000 shares · 2025Q313F
- Mario Gabelli (GAMCO) trimmed2025-11-12−130,611 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 positions4
- Norges Bank (Norway SWF)+1,677,371$29.2M
- Two Sigma Investments+636,849$11.1M
- Bill Smead (Smead Capital)+244,261$4.3M
- Paul Tudor Jones (Tudor Investment)+45,866$799K
Added to6
- D.E. Shaw & Co.+1,119,406$19.5M
- AQR Capital Management+414,592$7.2M
- Izzy Englander (Millennium Mgmt)+395,392$6.9M
- Steve Cohen (Point72)+199,355$3.5M
- Mario Gabelli (GAMCO)+48,319$842K
- T. Rowe Price+17,975$313
Trimmed4
- Howard Marks (Oaktree Capital)−14,800,000$258.0M
- Ken Griffin (Citadel Advisors)−1,653,400$28.8M
- Renaissance Technologies−771,000$13.4M
- Prem Watsa (Fairfax Financial)−41,400$722K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 10 | $954.2M |
| 2022Q2 | 9 | $69.7M |
| 2022Q3 | 10 | $53K |
| 2022Q4 | 12 | $41.0M |
| 2023Q1 | 11 | $45.1M |
| 2023Q2 | 12 | $363.9M |
| 2023Q3 | 15 | $391.2M |
| 2023Q4 | 12 | $479.9M |
| 2024Q1 | 14 | $500.0M |
| 2024Q2 | 12 | $435.1M |
| 2024Q3 | 12 | $402.0M |
| 2024Q4 | 11 | $436.6M |
| 2025Q1 | 12 | $398.2M |
| 2025Q2 | 14 | $465.9M |
| 2025Q3 | 12 | $546.9M |
| 2025Q4 | 16 | $482.3M |
Who owns GTX
16 super-investors · 2025Q4
Tracked stake
27.76M
shares
Combined value
$482M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New4Added6Trim5Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Howard Marks Oaktree Capital | 17.09M | $298M |
| 2 | Mario Gabelli GAMCO | 2.05M | $36M |
| 3 | Norges Bank Norway SWF | 1.68M | $29M |
| 4 | D.E. Shaw & Co. | 1.34M | $23M |
| 5 | Izzy Englander Millennium Mgmt | 1.19M | $21M |
| 6 | Renaissance Technologies | 1.01M | $18M |
| 7 | Ken Griffin Citadel Advisors | 905.8K | $16M |
| 8 | AQR Capital Management | 775.7K | $14M |
| 9 | Two Sigma Investments | 636.8K | $11M |
| 10 | Steve Cohen Point72 | 388.0K | $7M |
| 11 | Prem Watsa Fairfax Financial | 260.5K | $5M |
| 12 | Bill Smead Smead Capital | 244.3K | $4M |
| 13 | Paul Tudor Jones Tudor Investment | 45.9K | $799K |
| 14 | Jeremy Grantham GMO | 39.1K | $681K |
| 15 | Ken Griffin Citadel Advisors | 17.6K | $307K |
| 16 | T. Rowe Price | 90.1K | $2K |
Recent moves
20 transactions
- +45,866 · 2025Q4
- +395,392 · 2025Q4
- +414,592 · 2025Q4
- +636,849 · 2025Q4
- +1,119,406 · 2025Q4
- +199,355 · 2025Q4
- −41,400 · 2025Q4
- −14,800,000 · 2025Q4
- +17,975 · 2025Q4
- −1,653,400 · 2025Q4
- −771,000 · 2025Q4
- +1,677,371 · 2025Q4
- +244,261 · 2025Q4
- +48,319 · 2025Q4
- −425,055 · 2025Q3
- −941,720 · 2025Q3
- TRIMD.E. Shaw & Co.−401,476 · 2025Q3
- +63,569 · 2025Q3
- −104,821 · 2025Q3
- −65,716 · 2025Q3
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