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.

Latest filingSep 04, 2026Most recent Form 4
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 count
7 transactions
1 buys14%·86%6 sells

Insider activity report

Monthly open-market purchase and sale counts
Buys Sells
530-3-5transactionsAug 2026 buys: 1 transactions · $99.9M1Aug 2026 sells: 5 transactions · $2.06B5AugSep 2026 sells: 1 transactions · $1.39M1Sep

Transaction codes

By Form 4 transaction code in selected period
7transactions
  • S · Open-market sells · dominant6 · 86%
  • P · Open-market buys1 · 14%

Activity by reported role

A joint filing can contribute to multiple roles
7transactions
  • Director · dominant6 · 86%
  • GC1 · 14%

Distinct insiders active

Reporting-owner CIKs by month · peak Aug 2026 (2)
Aug 2026Sep 2026
3distinct insiders in 2 months

Reported Holdings After

Separated by insider, security, and ownership type
Robbins LarryClass A Common Stock · Indirect · See footnotes
12.2M3.0MAug 13, 2026 · 12,243,530 shares owned afterAug 13, 2026 · 4,371,387 shares owned afterAug 13, 2026 · 11,743,530 shares owned afterAug 14, 2026 · 3,546,687 shares owned afterAug 17, 2026 · 2,964,187 shares owned afterAug 13, 2026Aug 17, 2026
2,964,187Aug 17, 2026
Phanstiel S. LouiseClass A Common Stock · Indirect · By The Phanstiel Trust u/a/d 2/5/02
300.5k300.5kAug 14, 2026 · 300,461 shares owned afterAug 14, 2026Aug 14, 2026
300,461Aug 14, 2026
Caezza NicholasClass A Common Stock · Direct
305.2k305.2kSep 02, 2026 · 305,166 shares owned afterSep 02, 2026Sep 02, 2026
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 red
0 active days
Aug 05Sep 05
LessMore

Filing detail checks

Secondary metrics for the selected period
Largest buy$99.9M
Largest sale$717M
10b5-1 detected0
Amended rows0

Filing-only signals

Deterministic matches in the selected period

BFLY transaction history

Filters apply within this company and selected period by default
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TickerInsiderRoleTypeSharesValueCodeSignals90d returnFiledTrans date

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Butterfly Network, Inc. Insider Activity FAQ

SEC Form 4 context

Who 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.