X0306
4
2014-06-27
0
0000943034
IMAGE SENSING SYSTEMS INC
ISNS
0001044321
MARXE AUSTIN W & GREENHOUSE DAVID M
C/O SPECIAL SITUATIONS FUNDS
527 MADISON AVENUE, SUITE 2600
NEW YORK
NY
10022
0
0
1
0
Common Stock
2014-06-27
4
S
0
250000
3.2
D
859646
I
By Limited Partnerships
This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (QP), Special Situations Cayman Fund, L.P. (Cayman), Special Situations Technology Fund, L.P. (Tech) and Special Situations Technology II, L.P. (Tech II), respectively. 413,013 shares of Common Stock are held by QP, 118,902 shares of Common Stock are held by Cayman, 58,615 shares of Common Stock are held by Tech and 269,116 shares of Common Stock are held by Tech II. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP, Cayman, Tech, and Tech II is limited to the extent of his pecuniary interest.
Austin W. Marxe
2014-07-01
David M. Greenhouse
2014-07-01
Adam C. Stettner
2014-07-01