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buyModerate cluster of 6

Bihua Chen bought $5.0M of BLSM

director, owner at BlossomHill Therapeutics, Inc.. 312,500 shares at an average of $16.00, traded Aug 10, 2026, filed Aug 10, 2026.

Conviction score
58
Value
$5.0M
312,500 shares
Holdings after
3,614,034
+9% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Director
    +15
  • Trade size
    $5.0M at market
    +25
  • Relative to holdings
    Holdings up 9%
    +3
  • Price context
    No price history yet
    0
  • Cluster
    6 insiders buying within 14 days
    +15
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (1 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

BLSMOct 12, 2026 · close 17.27
Since filing Aug 10, 2026: +8.0%SPY +0.9% · excess +7.1%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001231919-26-000852, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 10, 2026CConversion
Common Stockindirect: See footnotes
+1,599,993--1,599,993Aug 10, 2026
Aug 10, 2026CConversion
Common Stockindirect: See footnotes
+1,701,541--3,301,534Aug 10, 2026
Aug 10, 2026POpen-market purchase
Common Stockindirect: See footnotes
+312,500$16.00$5.0M3,614,034Aug 10, 2026
Aug 6, 2026AGrant or award
Director Stock Option (Right to Buy)derivative
+23,904$0.00$023,904Aug 10, 2026
Aug 10, 2026CConversion
Series A Preferred Stockderivativeindirect: See footnotes
-1,599,993--0Aug 10, 2026
Aug 10, 2026CConversion
Series B Preferred Stockderivativeindirect: See footnotes
-1,701,541--0Aug 10, 2026

Related signals

Other insiders at BlossomHill Therapeutics, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
56Moderate
BLSMbuy 6
BlossomHill Therapeutics, Inc.
Orbimed Advisors LLC
director
$10M
625,000 shares
+30%
61Notable
BLSMbuy 6
BlossomHill Therapeutics, Inc.
Carl L Gordon
director
$10M
625,000 shares
+30%
48Moderate
BLSMbuy 6
BlossomHill Therapeutics, Inc.
John P. Schmid
director
$96k
6,000 shares
-
45Moderate
BLSMbuy 6
BlossomHill Therapeutics, Inc.
Jason A Keyes
Chief Financial Officer
$11k
700 shares
-
38Weak
BLSMbuy 6
BlossomHill Therapeutics, Inc.
Vincent Paul Liptak
General Counsel
$75k
4,700 shares
+4%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Bihua Chen bought $5.0M of BLSM | InsiderTell