Hello Sven,
1. Attach a cursor to e.g. V(out).
2. Use the up/down arrow key of he keyboard to jump to the waveform you are interested.
3. Move the mouse cursor near the waveform-crosshair. The mouse cursor will then change to 1, if it's the first of the two possible cursors. Now right mouse click.
LTspice will then report: Cursor 1: a=... b=... c=... (Run 7/15)
Best regards,
Helmut