X0101 24F-2NT LIVE 0001002537 XXXXXXXX false false N-1A NEEDHAM FUNDS INC 250 Park Avenue 10th Floor New York NY X1 10177-1099 true 811-09114 033-98310 12/31/2023 false 353216663.00 200549675.00 0.00 200549675.00 152666988.00 0.00 0.0001476 22533.65 22533.65 /s/ James W. Giangrasso James W. Giangrasso, Treaserur and Secretary (Chief Financial Officer) 03/22/2024