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sellWeak

David Kirske sold $36k of XFOR

Chief Financial Officer at X4 Pharmaceuticals, Inc. 8,543 shares at an average of $4.26, traded Jun 30, 2026, filed Jul 1, 2026.

Warning score
28
Value
$36k
8,543 shares
Holdings after
167,750
-5% from before
From 52-week low
+229%
low $1.42, close $4.67
From 52-week high
0%
high $4.67, as of Jun 30, 2026

Score components

  • Role
    CFO
    +22
  • Trade size
    $36k at market
    +6
  • Share of holdings sold
    Sold 4.8% of holdings
    0
  • Cluster
    No other insider selling within 14 days
    0

What happened after comparable sells

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.

XFOROct 12, 2026 · close 2.82
Since filing Jul 1, 2026: -31.0%SPY +4.6% · excess -35.6%

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 0001501697-26-000065, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jun 30, 2026SOpen-market sale
Common Stock
-8,543$4.26$36k167,750Jul 1, 2026

Related signals

Other insiders at X4 Pharmaceuticals, Inc and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
28Weak
XFORsell
X4 Pharmaceuticals, Inc
David Kirske
Chief Financial Officer
$34k
11,767 shares
-7%
45Moderate
XFORsell 2
X4 Pharmaceuticals, Inc
Adam R Craig
Executive Chairman
$211k
47,436 shares
-13%
38Weak
XFORsell 2
X4 Pharmaceuticals, Inc
John Volpone
President
$109k
24,576 shares
-8%
30Weak
XFORsell
X4 Pharmaceuticals, Inc
David Kirske
Chief Financial Officer
$73k
16,961 shares
-9%
47Moderate
XFORbuy
X4 Pharmaceuticals, Inc
Adam R Craig
Executive Chairman
$250k
86,206 shares
+30%
33Weak
XFORbuy
X4 Pharmaceuticals, Inc
Mark Baldry
Chief Commercial Officer
$2,561
1,032 shares
+4%
21Weak
XFORbuy
X4 Pharmaceuticals, Inc
Mark Baldry
Chief Commercial Officer
$19k
35,050 shares
+37%
20Weak
XFORsell 310b5-1
X4 Pharmaceuticals, Inc
Christophe Arbet-Engels
Chief Medical Officer
$5,284
11,624 shares
-45%
15Weak
XFORsell 310b5-1
X4 Pharmaceuticals, Inc
Mark Baldry
Chief Commercial Officer
$13k
29,159 shares
-24%
15Weak
XFORsell 310b5-1
X4 Pharmaceuticals, Inc
Mary DiBiase
Chief Operating Officer
$10k
22,258 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.

David Kirske sold $36k of XFOR | InsiderTell