Recaps · August 27, 2026

KZIA, August 27: a thin day, then $21.97 and $11.50 after the bell

• Small cap
• Momentum
• Thin regular session
• Catalyst: news
• After-hours swing
• Offering

Float

9.21 million shares

Volume

588,605 shares

Previous close

$14.60

Open

$14.67 (up 0.5%)

High

$17.18 at 3:27 p.m.

Close

$17.03

Pre-market: almost nothing

The previous close was $14.60. The first trade on the 27th was 100 shares at $13.49 at 4:01 a.m. That was the only pre-market minute with trades. The pre-market high was $14.24, in that same minute.

At 8:59 a.m. Seeking Alpha ran a piece titled “Kazia Therapeutics: Upcoming Data May Validate Best-In-Class Potential Of Paxalisib”. The stock did not trade again until the open.

The open and a slow climb

It opened at $14.67, about the same as the $14.60 close. The low since the open was $14.26, in the 9:30 minute. In the 9:30 minute 266 shares traded. Many minutes after that had no trades at all.

At 9:38 it pushed to $15.10 on 2,067 shares. It stayed near $15 through the 10:06 dip to $14.69. Then it drifted up: $15.85 at 10:33, $16.40 at 10:53.

Midday: a range near $16

From about 11 a.m. to 2:40 p.m. it mostly held between $15.70 and $16.30. The low stretches were around $15.67 at 11:41–11:48 and $15.74 at 12:58 p.m. Volume was light, often a few hundred shares a minute or fewer.

At 2:45 p.m. it broke higher, to $16.56 on 3,650 shares. By 3:15 it touched $17.00.

The last hour

The regular-session high so far was $17.18, first reached at 3:27 p.m., in a minute that traded 1,807 shares. It slipped back to $16.83 by 3:30.

It spent the last half hour between about $16.74 and $17.18, touching $17.18 again at 3:54.

Its last trade before 4:00 p.m. was $17.03, up about 17% on the previous close of $14.60; the 4:00 p.m. minute printed $16.90. By the close, 145,319 shares had traded in the regular session. That is about 1.6% of the float of 9.2 million, and relative volume was about 6 times normal.

After hours: $21.97, then $11.50

The 4:00 p.m. minute printed at $16.90. At 4:01 p.m. PRNewsWire ran “Kazia Therapeutics Reports 100% Clinical Benefit Rate in Initial Six Patients Treated for Advanced Triple-Negative Breast Cancer”. That minute traded from $17.20 up to $18.72.

The high of the whole day came a few minutes later: $21.97 in the 4:05 p.m. minute, on 11,461 shares. In 4:06 it reached $21.00, but it closed that minute at $19.42.

At 4:09 p.m. PRNewsWire ran “Kazia Therapeutics Limited Announces Proposed Public Offering”. In the 4:09 minute it fell to $13.00. By 4:11 it hit $11.50, the low of the day, on 30,061 shares in that minute. From $21.97 to $11.50 took six minutes.

It then bounced between about $12 and $14. At 4:16 it ran from $12.26 to $13.80 on 40,971 shares.

Filings and the evening

At 4:37 p.m. the company filed a 6-K. Between 4:37 and 4:44 it also filed four 424B3 prospectuses. At 4:47 p.m. it filed a 424B5 prospectus.

The stock sat around $13 through those filings. At 5:03 it traded up to $14.50, and around 5:51 it reached $15.42. After that it faded back to about $14.20 by 7:59 p.m.

After hours, 443,186 shares traded, three times the regular session. The whole day came to 588,605 shares.

What to take from it

• After hours can undo the day. The stock traded at $21.97 at 4:05 p.m. and at $11.50 by 4:11 p.m.
• A quiet regular session says little about what comes next. About 145,000 shares traded by the close. After hours had three times that.
• Big after-hours swings can come around headlines. Here a headline came at 4:01 p.m. and the stock reached $21.97 by 4:05; it was already falling by 4:07, and the offering headline came at 4:09 as it fell to $13.00.