Ticker · CUSIP 350060109
Holders (tracked)
3
Combined shares
1,256,181
Combined value
$33.85M
Last close
$30.00
Quarter
2025Q4
Price · 1Y$30.00+9.96 (+49.70%)H $32.19 · L $18.09 · Avg Vol 32K
Position opened
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is +11.3% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
6 events
- Ken Griffin (Citadel Advisors) exited2026-02-17−20,398 shares · 2025Q4Position
- AQR Capital Management opened position2026-02-17+7,499 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−13,400 shares · 2025Q4Position
- Mario Gabelli (GAMCO) trimmed2026-02-05−15,400 shares · 2025Q4Position
- Renaissance Technologies trimmed2025-11-13−1,300 shares · 2025Q3Position
- Mario Gabelli (GAMCO) trimmed2025-11-12−16,772 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of FSTR…
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 |
|---|---|---|---|---|
| AQR Capital Management | 2016Q1 | $13.32 | +125.2% | $225K |
| Mario Gabelli (GAMCO) | 2016Q2 | $14.31 | +109.6% | $27.5M |
| Renaissance Technologies | 2016Q1 | $21.74 | +38.0% | $9.9M |
Who moved on this name in 2025Q4
Position changes 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 | $12.8M |
| 2022Q4 | 7 | $13.5M |
| 2023Q1 | 7 | $16.1M |
| 2023Q2 | 7 | $21.3M |
| 2023Q3 | 7 | $29.2M |
| 2023Q4 | 4 | $34.1M |
| 2024Q1 | 4 | $43.1M |
| 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
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