Latest filingSep 04, 2026Most recent Form 4
BFLY
Butterfly Network, Inc.
NYSEHealthcareX-Ray Apparatus & Tubes & Related Irradiation Apparatus
Insider activity for last month from 08/05 to 09/05. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$99.9M1 buys
Total selling$2.06B6 sells
Net open-market-$1.96B3 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period7transactions
- S · Open-market sells · dominant6 · 86%
- P · Open-market buys1 · 14%
Activity by reported role
A joint filing can contribute to multiple roles7transactions
- Director · dominant6 · 86%
- GC1 · 14%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (2)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeRobbins LarryClass A Common Stock · Indirect · See footnotes
2,964,187Aug 17, 2026
Phanstiel S. LouiseClass A Common Stock · Indirect · By The Phanstiel Trust u/a/d 2/5/02
300,461Aug 14, 2026
Caezza NicholasClass A Common Stock · Direct
305,166Sep 02, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 05 → Sep 05
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Top insiders
By absolute net value across the selected period- RL-$20.6M
- PL+$999.5k
- CN-$13.9k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
BFLY transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| BFLY | Caezza Nicholas | GC | sale | 1.70k | -$1.39M | S | — | 0.0% | 09/04 | 09/02 |
| BFLY | ROBBINS LARRY | DIR | sale | 582k | -$522M | S | −9.3% | 08/17 | 08/17 | |
| BFLY | ROBBINS LARRY | DIR | sale | 824k | -$717M | S | −9.3% | 08/17 | 08/14 | |
| BFLY | ROBBINS LARRY | DIR | sale | 175k | -$155M | S | −9.3% | 08/17 | 08/13 | |
| BFLY | ROBBINS LARRY | DIR | sale | 500k | -$461M | S | −9.3% | 08/17 | 08/13 | |
| BFLY | ROBBINS LARRY | DIR | sale | 215k | -$205M | S | −9.3% | 08/17 | 08/13 | |
| BFLY | Phanstiel S. Louise | DIR | buy | 115k | $99.9M | P | −9.3% | 08/17 | 08/14 |
Butterfly Network, Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Butterfly Network, Inc.?
Caezza Nicholas, ROBBINS LARRY, Phanstiel S. Louise.
When was the latest reported open-market purchase?
Phanstiel S. Louise reported a buy on Aug 14, 2026 valued at $99.9M. Read the SEC filing.
When was the latest reported open-market sale?
Caezza Nicholas reported a sale on Sep 02, 2026 valued at $1.39M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $19,636,910.05. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.