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buyModerate cluster of 5

Catherine A. Sohn bought $2,118 of ALT

director at Altimmune, Inc.. 500 shares at an average of $4.24, traded Jan 5, 2026, filed Jan 5, 2026.

Conviction score
48
Value
$2,118
500 shares
Holdings after
1,500
+50% from before
From 52-week low
+21%
low $3.38, close $4.09
From 52-week high
-47%
high $7.71, as of Jan 5, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $2k at market
    0
  • Relative to holdings
    Holdings up 50%
    +10
  • Price context
    47% below the 52-week high
    +8
  • Cluster
    5 insiders buying within 14 days
    +15
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 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.

ALTOct 9, 2026 · close 2.61
Since filing Jan 5, 2026: -36.2%SPY +14.1% · excess -50.3%

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 0001555132-26-000002, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jan 5, 2026POpen-market purchase
Common Stock, par value $0.0001
+500$4.24$2,1181,500Jan 5, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
53Moderate
ALTbuy 3
Altimmune, Inc.
John Gill
director
$31k
9,200 shares
+74%
71Notable
ALTbuy 3
Altimmune, Inc.
Gregory L Weaver
Chief Financial Officer
$31k
10,000 shares
+36%
75Notable
ALTbuy 3
Altimmune, Inc.
Jerome Benedict Durso
President and CEO
$47k
15,000 shares
+46%
54Moderate
ALTbuy 2
Altimmune, Inc.
Gregory L Weaver
Chief Financial Officer
$18k
5,000 shares
+22%
74Notable
ALTbuy 2
Altimmune, Inc.
Jerome Benedict Durso
President and CEO
$71k
20,000 shares
+160%
48Moderate
ALTbuy 3
Altimmune, Inc.
Wayne Pisano
director
$20k
5,000 shares
+59%
56Moderate
ALTbuy 5
Altimmune, Inc.
Diane Jorkasky
director
$2,003
527 shares
-
53Moderate
ALTbuy 4
Altimmune, Inc.
John Gill
director
$51k
12,500 shares
-
53Moderate
ALTbuy 4
Altimmune, Inc.
Jerome Benedict Durso
President and CEO
$52k
12,500 shares
-
31Weak
ALTbuy 2
Altimmune, Inc.
Catherine A. Sohn
director
$5,785
1,000 shares
-

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.

Catherine A. Sohn bought $2,118 of ALT | InsiderTell