The trading movements ahead of the announcement suggest that...

The trading movements ahead of the announcement suggest that there was a leak?

Some high volume trading before the halt

	Time	Price $	Volume	Value $	Market
1	12:26:18 PM	0.31	123496	38283.76	ASX
2	12:10:26 PM	0.31	49999	15499.69	ASX
3	12:26:18 PM	0.31	47165	14621.15	ASX
4	11:12:43 AM	0.31	45340	14055.4	ASX
5	11:25:16 AM	0.31	41940	13001.4	CXA
6	11:01:02 AM	0.31	39800	12338	CXA
7	10:12:51 AM	0.315	37400	11781	ASX
8	10:12:49 AM	0.315	35539	11194.79	ASX
9	12:13:00 PM	0.31	35400	10974	ASX
10	10:45:49 AM	0.31	32258	9999.98	ASX
11	11:06:40 AM	0.31	31288	9699.28	ASX
12	11:01:02 AM	0.31	28069	8701.39	CXA
13	11:06:18 AM	0.31	23300	7223	CXA
14	11:54:57 AM	0.315	23182	7302.33	ASX
15	10:12:51 AM	0.315	22267	7014.105	ASX
16	12:17:45 PM	0.31	20330	6302.3	ASX
17	12:26:18 PM	0.31	20000	6200	ASX
18	12:18:08 PM	0.31	20000	6200	ASX
19	12:17:40 PM	0.31	20000	6200	ASX
20	12:13:00 PM	0.31	20000	6200	ASX
21	12:10:26 PM	0.31	20000	6200	ASX
22	12:03:11 PM	0.31	20000	6200	ASX