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Total declarations
Companies
▲ Purchases (10 ops.)
▼ Sales (3 ops.)
Latest filing published 17 Aug 2026 for Butterfly Network, Inc., €866k.
Filing timeline
BuySaleS. Louise Phanstiel
Insider track record
Disclosed buys
10
Disclosed sells
3
Signal history
Closed purchases
Market purchases
3
Positive at T+90
50%
Median T+90
-3.1%
Based on 2 purchases whose 90-day window has closed (published at least 91 days ago), the same population our ranking model reads.
Purchases by company
Since each purchase
- -8.3%Entry US$9.00 · Close 09 Oct 2026 US$8.25
- -20.8%Entry US$5.01 · Close at T+90 US$3.97
- +14.5%Entry US$3.45 · Close at T+90 US$3.95
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
S. Louise Phanstiel: trading record in brief
S. Louise Phanstiel is a declared insider at 3 companies (board member); the most frequent names are Myriad Genetics Inc, Butterfly Network, Inc. and Verastem, Inc. Between 10 June 2013 and 14 August 2026, the trades on record add up to 35 filings.
In open-market terms, that means 10 purchases worth €2.2M on one side and 3 sales worth €1.7M on the other. On balance, insiders were net buyers of €442k. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. Besides market trades, the filings include 19 share grants and 2 option exercises. So far in 2026, the count stands at 4 purchases and no sales.
A typical purchase (the median) is worth €130k. Clusters matter here: 1 out of 6 purchases overlapped with buying by a colleague within 30 days. Purchases made close together by different insiders form what is called a cluster.
The latest filing, published on 17 August 2026, reports an open-market purchase of €866k in Butterfly Network, Inc. Typically, a trade is published a median of 1 day after it takes place. For comparison, the SEC allows two business days to file a Form 4. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
Companies and markets linked to S. Louise Phanstiel
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations15 total
115,200 shares@ US$8.67630.039% mcap59.4% of flowClass A Common StockSEC:0002064832-26-000274:0
Canonical exit: 12 Nov 2026 (T+90)
25,447 sharesClass A Common StockSEC:0002064832-26-000234:0
6,100 shares@ US$4.7363.7% of flowCommon StockSEC:0001471518-26-000002:0
Canonical exit: 26 May 2026 (T+90)
185,261 shares@ US$3.08333.4% of flowClass A Common StockSEC:0002064832-25-000087:0
Canonical exit: 15 Mar 2026 (T+90)
80,434 shares0Class A Common StockSEC:0001062993-25-011826:0
49,796 shares0Common StockSEC:0001628280-25-029975:0
60,049 shares@ US$1.96167.3% of flowClass A Common StockSEC:0001104659-24-099788:0
157,894 shares0Class A Common StockSEC:0001104659-24-070859:0
15,695 shares0Common StockSEC:0001628280-24-027329:0
65,789 shares0Class A Common StockSEC:0001104659-23-073787:0
15,151 shares0Common StockSEC:0001471518-23-000004:0
48,231 shares0Class A Common StockSEC:0001104659-22-073492:0
17,275 shares0Common StockSEC:0001628280-22-016222:0
30,000 shares@ US$25.3996.3% of flowCommon StockSEC:0001471518-21-000002:0
12,848 shares0Common StockSEC:0000899243-21-022151:0
15 of 15 declarations
