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buyModerate cluster of 2

Ramiro Guerrero bought $30k of MAIA

director at MAIA Biotechnology, Inc.. 20,000 shares at an average of $1.50, traded May 8, 2025, filed May 12, 2025.

Conviction score
41
Value
$30k
20,000 shares
Holdings after
588,218
+4% from before
From 52-week low
+36%
low $1.44, close $1.96
From 52-week high
-41%
high $3.32, as of May 8, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $30k at market
    +5
  • Relative to holdings
    Holdings up 3.5%
    0
  • Price context
    41% below the 52-week high
    +8
  • Cluster
    2 insiders buying within 14 days
    +8
  • Repeat buying
    3 buys in 90 days
    +5
  • 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.

This signal so far: 1m -8.9%, 3m -22.4%, 6m -40.1%.

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.

MAIAOct 9, 2026 · close 1.22
Since filing May 12, 2025: -36.5%SPY +35.7% · excess -72.1%

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 0001127602-25-013965, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 8, 2025POpen-market purchase
Common Stock
+20,000$1.50$30k588,218May 12, 2025
May 8, 2025POpen-market purchase
Warrantsderivative
+20,000$2.05$41k20,000May 12, 2025

Related signals

Other insiders at MAIA Biotechnology, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
54Moderate
MAIAbuy 2
MAIA Biotechnology, Inc.
Vlad Vitoc
Chief Executive Officer
$100k
73,000 shares
+7%
46Moderate
MAIAbuy 2
MAIA Biotechnology, Inc.
Ramiro Guerrero
director
$50k
37,595 shares
+5%
41Moderate
MAIAbuy
MAIA Biotechnology, Inc.
Ramiro Guerrero
director
$184k
133,790 shares
+22%
18Weak
MAIAbuy
MAIA Biotechnology, Inc.
Ramiro Guerrero
director
$2,386
1,794 shares
+0%
18Weak
MAIAbuy
MAIA Biotechnology, Inc.
Ramiro Guerrero
director
$16k
11,899 shares
+2%
38Weak
MAIAbuy 3
MAIA Biotechnology, Inc.
Sergei Gryaznov
Chief Scientific Officer
$2,690
2,000 shares
+4%
46Moderate
MAIAbuy 3
MAIA Biotechnology, Inc.
Stan Smith
director
$100k
75,000 shares
+5%
61Notable
MAIAbuy 3
MAIA Biotechnology, Inc.
Vlad Vitoc
Chief Executive Officer
$101k
72,700 shares
+8%
10Weak
MAIAbuy
MAIA Biotechnology, Inc.
Stan Smith
director
$9,959
2,700 shares
+0%
51Moderate
MAIAbuy 3
MAIA Biotechnology, Inc.
Steven M Chaouki
director
$50k
40,849 shares
+37%

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.

Ramiro Guerrero bought $30k of MAIA | InsiderTell