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sellWeak cluster of 3

Ralph Brandenberger sold $16k of NKTX

Chief Technical Officer at Nkarta, Inc.. 7,447 shares at an average of $2.20, traded Jan 15, 2025, filed Jan 17, 2025.

Warning score
30
Value
$16k
7,447 shares
Holdings after
124,796
-6% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Officer
    +15
  • Trade size
    $16k at market
    0
  • Share of holdings sold
    Sold 5.6% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +15

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.

This signal so far: 1m -10.5%, 3m -26.7%, 6m -22.7%.

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.

NKTXOct 9, 2026 · close 2.25
Since filing Jan 17, 2025: -8.9%SPY +32.8% · excess -41.7%

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 0000950170-25-006826, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jan 15, 2025SOpen-market sale
Common Stock
-7,447$2.20$16k124,796Jan 17, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
25Weak
NKTXsell
Nkarta, Inc.
Paul J Hastings
Chief Executive Officer
$4,813
1,776 shares
-0%
40Moderate
NKTXsell 2
Nkarta, Inc.
Paul J Hastings
Chief Executive Officer
$54k
26,046 shares
-6%
28Weak
NKTXsell 2
Nkarta, Inc.
Nadir Mahmood
President
$12k
5,649 shares
-3%
25Weak
NKTXsell
Nkarta, Inc.
Paul J Hastings
Chief Executive Officer
$3,204
1,790 shares
-1%
46Moderate
NKTXsell 3
Nkarta, Inc.
Paul J Hastings
Chief Executive Officer
$38k
17,378 shares
-5%
30Weak
NKTXsell 3
Nkarta, Inc.
Alicia J. Hager
Chief Legal Officer
$21k
9,584 shares
-6%
0Weak
NKTXsell10b5-1
Nkarta, Inc.
Ralph Brandenberger
Chief Technical Officer
$105k
8,367 shares
-9%
15Weak
NKTXsell
Nkarta, Inc.
Ralph Brandenberger
Chief Technical Officer
$22k
2,512 shares
-3%

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.