Insider Trading activities of Castelle \ca\ insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Castelle \ca\ since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Castelle \ca\ since year 2005. Table 2 shows the detailed insider transactions of Castelle \ca\ since 2005. The reporting company's ticker symbol is CSTL. The reporting company's CIK number is 908605.
The total value of stock buying since 2005 is $1,163,351.
The total value of stock sales since 2005 is $29,055.
The total value of stock option exercises since 2005 is $117,319.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Castelle \ca\ (CSTL).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2007-05 0 $0 0 $0 30,000 $38,430
2007-04 0 $0 0 $0 45,000 $52,019
2006-11 0 $0 0 $0 20,000 $17,500
2006-09 66,741 $193,281 0 $0 0 $0
2006-08 69,872 $190,094 0 $0 0 $0
2006-07 107,410 $297,694 0 $0 0 $0
2006-06 7,600 $22,940 0 $0 0 $0
2006-05 14,350 $43,767 0 $0 0 $0
2006-02 0 $0 0 $0 10,000 $9,370
2005-10 1,500 $1,500 0 $0 0 $0
2005-08 0 $0 8,000 $29,055 0 $0
2005-06 72,075 $232,363 0 $0 0 $0
2005-05 59,967 $181,712 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Castelle \ca\ insiders (CSTL)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2007-05-04 Chen Eric C (V.P. Engineering) Option Ex 30,000 1.28 38,430
2007-04-17 Cheng Paul (CFO VP, Finance & Admin) Option Ex 45,000 1.16 52,019
2006-11-10 Petrovich Michael (V.P. Sales) Option Ex 20,000 .88 17,500
2006-09-11 Zeff Capital Partners I, L.p. (10% Owner) Buy 44,494 2.90 128,854
2006-08-23 Zeff Capital Partners I, L.p. (10% Owner) Buy 15,197 2.84 43,098
2006-08-14 Zeff Capital Partners I, L.p. (10% Owner) Buy 2,150 2.65 5,697
2006-08-11 Zeff Capital Partners I, L.p. (10% Owner) Buy 32,400 2.69 87,156
2006-08-08 Zeff Capital Partners I, L.p. (10% Owner) Buy 1,300 2.71 3,523
2006-08-07 Zeff Capital Partners I, L.p. (10% Owner) Buy 2,625 2.68 7,042
2006-07-31 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 49,300 2.67 131,680
2006-07-28 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 18,610 2.65 49,353
2006-07-26 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 24,400 3.07 74,834
2006-07-17 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 15,100 2.77 41,827
2006-06-30 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 1,500 3.02 4,537
2006-06-07 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 6,100 3.02 18,403
2006-05-30 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 14,350 3.05 43,767
2006-02-23 Petrovich Michael (V.P. International Sales) Option Ex 10,000 .94 9,370
2005-10-26 Rich Donald L (Director) Buy 1,500 1.00 1,500
2005-08-15 Petrovich Michael (V.P. International S) Sale 700 3.70 2,590
2005-08-12 Petrovich Michael (V.P. International S) Sale 300 3.70 1,110
2005-08-03 Petrovich Michael (V.P. International S) Sale 2,000 3.66 7,320
2005-08-01 Petrovich Michael (V.P. International S) Sale 5,000 3.61 18,035
2005-06-29 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 51,700 3.26 167,429
2005-06-13 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 4,000 2.97 11,880
2005-06-02 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 4,150 3.08 12,773
2005-05-24 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 16,705 3.04 50,749
2005-05-04 Spectrum Galaxy Fund Ltd. (10% Owner) Buy 22,731 3.03 68,875

Insider trading activities including stock purchases, stock sales, and option exercises of CSTL listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Castelle \ca\ (symbol CSTL, CIK number 908605) see the Securities and Exchange Commission (SEC) website.