Ticker · CUSIP 350060109
Holders (tracked)
3
Combined shares
1,256,181
Combined value
$33.85M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
SEC event timeline
6 events
- Ken Griffin (Citadel Advisors) exited2026-02-17−20,398 shares · 2025Q413F
- AQR Capital Management opened position2026-02-17+7,499 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−13,400 shares · 2025Q413F
- Mario Gabelli (GAMCO) trimmed2026-02-05−15,400 shares · 2025Q413F
- Renaissance Technologies trimmed2025-11-13−1,300 shares · 2025Q313F
- Mario Gabelli (GAMCO) trimmed2025-11-12−16,772 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
- AQR Capital Management+7,499$202K
Added to0
—
Trimmed2
- Mario Gabelli (GAMCO)−15,400$415K
- Renaissance Technologies−13,400$361K
Exited1
- Ken Griffin (Citadel Advisors)−20,398$550K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 5 | $20.7M |
| 2022Q2 | 5 | $17.2M |
| 2022Q3 | 5 | $13K |
| 2022Q4 | 7 | $9.4M |
| 2023Q1 | 7 | $11.4M |
| 2023Q2 | 7 | $15.8M |
| 2023Q3 | 7 | $21.9M |
| 2023Q4 | 4 | $25.1M |
| 2024Q1 | 4 | $33.4M |
| 2024Q2 | 7 | $42.6M |
| 2024Q3 | 5 | $27.8M |
| 2024Q4 | 6 | $36.7M |
| 2025Q1 | 5 | $26.5M |
| 2025Q2 | 3 | $29.3M |
| 2025Q3 | 3 | $35.0M |
| 2025Q4 | 3 | $33.9M |
Who owns FSTR
3 super-investors · 2025Q4
Tracked stake
1.26M
shares
Combined value
$34M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Trim2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Mario Gabelli GAMCO | 918.1K | $25M |
| 2 | Renaissance Technologies | 330.6K | $9M |
| 3 | AQR Capital Management | 7.5K | $202K |
Recent moves
20 transactions
- −20,398 · 2025Q4
- +7,499 · 2025Q4
- −13,400 · 2025Q4
- −15,400 · 2025Q4
- −1,300 · 2025Q3
- −16,772 · 2025Q3
- +18,272 · 2025Q2
- −5,600 · 2025Q2
- −38,425 · 2025Q1
- −2,200 · 2025Q1
- −1,200 · 2025Q1
- +38,425 · 2024Q4
- +5,700 · 2024Q4
- −38,200 · 2024Q4
- −39,330 · 2024Q3
- +25,500 · 2024Q3
- −19,300 · 2024Q3
- −127,146 · 2024Q2
- ADDBlackRock+422,865 · 2024Q2
- +18,300 · 2024Q2
Embed this chart
Paste this iframe anywhere to embed the live FSTR chart.
<iframe src="https://openstocks.me/embed/stock/FSTR" width="100%" height="480" frameborder="0" loading="lazy" title="FSTR chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>