Ticker · CUSIP 124155102
Holders (tracked)
10
Combined shares
24,823,007
Combined value
$93.89M
Last close
$5.29
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
Price is +39.9% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
15 events
- Larry Robbins (Glenview Capital) added2026-02-17+4,379,911 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−2,198,655 shares · 2025Q413F
- D.E. Shaw & Co. opened position2026-02-17+66,791 shares · 2025Q413F
- Two Sigma Investments trimmed2026-02-17−1,661 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+1,653,168 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−7,945 shares · 2025Q413F
- T. Rowe Price added2026-02-17+14,446 shares · 2025Q413F
- Cathie Wood (ARK Invest) added2026-02-11+99,079 shares · 2025Q413F
- −1,138,518 shares · 2025Q313F
- AQR Capital Management opened position2025-11-14+27,576 shares · 2025Q313F
- Two Sigma Investments trimmed2025-11-14−749,012 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−659,699 shares · 2025Q313F
- T. Rowe Price trimmed2025-11-14−39,518 shares · 2025Q313F
- Renaissance Technologies exited2025-11-13−505,753 shares · 2025Q313F
- Cathie Wood (ARK Invest) trimmed2025-11-12−270,894 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of BFLY…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| T. Rowe Price | 2021Q3 | $0.93 | +466.1% | $616K |
| AQR Capital Management | 2024Q1 | $1.08 | +389.8% | $104K |
| D.E. Shaw & Co. | 2021Q3 | $1.52 | +247.8% | $353K |
| Two Sigma Investments | 2021Q4 | $2.98 | +77.8% | $108K |
| Izzy Englander (Millennium Mgmt) | 2021Q1 | $3.07 | +72.1% | $16.8M |
| Ken Griffin (Citadel Advisors) | 2021Q2 | $3.32 | +59.4% | $1.1M |
| Ken Griffin (Citadel Advisors) | 2021Q2 | $3.32 | +59.4% | $1.1M |
| Ken Griffin (Citadel Advisors) | 2021Q2 | $3.32 | +59.4% | $1.1M |
| Cathie Wood (ARK Invest) | 2021Q1 | $6.80 | -22.3% | $33.0M |
| Larry Robbins (Glenview Capital) | 2021Q1 | $7.70 | -31.3% | $75.8M |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- D.E. Shaw & Co.+66,791$254K
Added to4
- Larry Robbins (Glenview Capital)+4,379,911$16.6M
- Izzy Englander (Millennium Mgmt)+1,653,168$6.3M
- Cathie Wood (ARK Invest)+99,079$377K
- T. Rowe Price+14,446$55
Trimmed3
- Ken Griffin (Citadel Advisors)−2,198,655$8.4M
- AQR Capital Management−7,945$30K
- Two Sigma Investments−1,661$6K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 11 | $141.6M |
| 2022Q2 | 10 | $87.1M |
| 2022Q3 | 13 | $147K |
| 2022Q4 | 12 | $75.4M |
| 2023Q1 | 9 | $55.6M |
| 2023Q2 | 7 | $74.8M |
| 2023Q3 | 11 | $40.6M |
| 2023Q4 | 9 | $36.7M |
| 2024Q1 | 10 | $32.7M |
| 2024Q2 | 11 | $20.9M |
| 2024Q3 | 10 | $43.1M |
| 2024Q4 | 11 | $77.3M |
| 2025Q1 | 11 | $60.1M |
| 2025Q2 | 10 | $47.9M |
| 2025Q3 | 9 | $39.7M |
| 2025Q4 | 10 | $93.9M |
Who owns BFLY
10 super-investors · 2025Q4
Tracked stake
24.82M
shares
Combined value
$94M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added4Trim5
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Larry Robbins Glenview Capital | 14.34M | $54M |
| 2 | Cathie Wood ARK Invest | 6.24M | $24M |
| 3 | Izzy Englander Millennium Mgmt | 3.17M | $12M |
| 4 | Ken Griffin Citadel Advisors | 489.7K | $2M |
| 5 | Ken Griffin Citadel Advisors | 200.1K | $760K |
| 6 | Ken Griffin Citadel Advisors | 156.4K | $594K |
| 7 | D.E. Shaw & Co. | 66.8K | $254K |
| 8 | Two Sigma Investments | 20.4K | $78K |
| 9 | AQR Capital Management | 19.6K | $75K |
| 10 | T. Rowe Price | 116.4K | $443 |
Recent moves
20 transactions
- +4,379,911 · 2025Q4
- +1,653,168 · 2025Q4
- −2,198,655 · 2025Q4
- −7,945 · 2025Q4
- −1,661 · 2025Q4
- +66,791 · 2025Q4
- +14,446 · 2025Q4
- +99,079 · 2025Q4
- −1,138,518 · 2025Q3
- TRIMT. Rowe Price−39,518 · 2025Q3
- −659,699 · 2025Q3
- −749,012 · 2025Q3
- +27,576 · 2025Q3
- −505,753 · 2025Q3
- −270,894 · 2025Q3
- −1,603,523 · 2025Q2
- +96,167 · 2025Q2
- +59,707 · 2025Q2
- SOLDD.E. Shaw & Co.−630,485 · 2025Q2
- −318,725 · 2025Q2
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