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Company
▲ Purchases (0 ops.)
▼ Sales (1 ops.)
Latest filing published 06 Jul 2026 for Boundless Bio, Inc., €14k. Read the official filing
Filing timeline
BuySaleARCH Venture Fund IX, L.P.
Insider track record
Disclosed buys
0
Disclosed sells
1
Signal history
ARCH Venture Fund IX, L.P.: trading record in brief
ARCH Venture Fund IX, L.P. discloses dealings in Boundless Bio, Inc. to SEC (Form 4). Between 2 April 2024 and 1 July 2026, the trades on record add up to 3 filings.
No open-market purchase appears, only 1 sale worth €35k. The rest of the record consists of 1 option exercise. Since January 2026: no purchases and 1 sale on the market.
Most recently, on 6 July 2026, the filings show an option exercise worth €14k in Boundless Bio, Inc. Filings reach the SEC (Form 4) feed a median of 5 days after the trade. For comparison, the SEC allows two business days to file a Form 4. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
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Declarations3 total
16,000 shares@ US$1.030.027% mcap29.3% of flowCommon StockSEC:0001012975-26-000621:0
16,000 shares@ US$2.490.066% mcap70.7% of flowCommon StockSEC:0001012975-26-000621:1
589,743 sharesCommon StockSEC:0000950170-24-041841:0
3 of 3 declarations
