Stock Trading CanaryHONG KONG · DIRECTORS' NOTICES
BrainAurora Medical Technology Ltd. - B
06681 · Healthcare · Health Information Services
Score
48.6
Price vs insider buying
6681.HK · HKD● Purchase × Sale ◇ Public disclosure ▥ 15-day cluster ·
Circles and crosses mark trade dates; diamonds below the axis mark later public disclosures. The trade became public on its disclosure date. Prices are nearest-session closes, not insider execution prices. Marker sizes are not compared when values or currencies differ.
Insider timeline
One insider bought, 7 times, the latest (26 Jun). The share closed at 1.67 that day and at 1.45 most recently (−13.5%).
Tap an item for what it means.
●A purchase: the bigger the dot, the more was bought
Each dot is one insider's purchases on one day. The dot's area follows the amount: the largest purchase here gets the largest dot. Hold the pointer over a dot to see the date and the amount.
Blue line: this share's price, −62.2% over these six months
The closing price of each day, from 3.82 on 2026-05-11 to 1.45 on 2026-11-05. The line has no scale; read it for high and low: a dot on a low stretch was bought cheaply, a dot on a high stretch was not.
This company: insiders buying per month, last 12 months
Darker bars are inside the 180-day window above.
Who traded
| Insider | Role | Purchases | Sales | Bought | First purchase | Share price since |
|---|---|---|---|---|---|---|
| TAN Zheng | Board member | 7 | — | 14.7M HKD | 2026-05-12 | −61.8% |
Insiders' buying price vs the latest close
Insiders paid 3.20 HKD a share on average (14 purchase lines, 1 buyer, 2026-04-16 – 2026-06-26). The close on 2026-11-05 was 54.9% below that price.
The latest purchase (2026-06-26) was at 1.67 HKD; the close was 13.5% below that price.
Prices paid are weighted by shares and taken from the filings; dividends are not counted. Not scored.
Director trades on the exchange
Purchases and sales on the exchange in the last 12 months, as counted in the score.
| Trade date | Filed | Director | Held as | Trade | Shares | Price | Value |
|---|---|---|---|---|---|---|---|
| 2026-06-26 | 2026-06-30 | TAN Zheng | Spouse or child | Bought | 300,000 | HK$1.67 | HK$501.0K |
| 2026-06-08 | 2026-06-10 | TAN Zheng | Spouse or child | Bought | 500,000 | HK$2.51 | HK$1.3M |
| 2026-05-29 | 2026-06-01 | TAN Zheng | Spouse or child | Bought | 100,000 | HK$2.64 | HK$263.5K |
| 2026-05-27 | 2026-05-28 | TAN Zheng | Spouse or child | Bought | 100,000 | HK$2.67 | HK$267.0K |
| 2026-05-26 | 2026-05-28 | TAN Zheng | Spouse or child | Bought | 500,000 | HK$2.87 | HK$1.4M |
| 2026-05-21 | 2026-05-22 | TAN Zheng | Spouse or child | Bought | 3,000,000 | HK$3.03 | HK$9.1M |
| 2026-05-12 | 2026-05-13 | TAN Zheng | Spouse or child | Bought | 500,000 | HK$3.78 | HK$1.9M |
| 2026-05-05 | 2026-05-07 | TAN Zheng | Spouse or child | Bought | 150,000 | HK$3.80 | HK$570.0K |
| 2026-05-04 | 2026-05-07 | TAN Zheng | Spouse or child | Bought | 549,000 | HK$3.94 | HK$2.2M |
| 2026-04-30 | 2026-04-30 | TAN Zheng | Spouse or child | Bought | 200,000 | HK$3.79 | HK$757.0K |
| 2026-04-27 | 2026-04-28 | TAN Zheng | Spouse or child | Bought | 96,000 | HK$3.93 | HK$376.8K |
| 2026-04-24 | 2026-04-28 | TAN Zheng | Spouse or child | Bought | 200,000 | HK$3.97 | HK$793.4K |
| 2026-04-17 | 2026-04-21 | TAN Zheng | Spouse or child | Bought | 403,000 | HK$4.16 | HK$1.7M |
| 2026-04-16 | 2026-04-21 | TAN Zheng | Spouse or child | Bought | 101,000 | HK$4.21 | HK$425.1K |
| 2026-01-15 | 2026-01-20 | TAN Zheng | — | Sold | 8,000,000 | HK$6.17 | HK$49.4M |
| 2026-01-14 | 2026-01-19 | TAN Zheng | — | Sold | 8,000,000 | HK$6.49 | HK$51.9M |
| 2026-01-13 | 2026-01-16 | TAN Zheng | — | Sold | 16,000,000 | HK$6.67 | HK$106.7M |
| 2026-01-12 | 2026-01-15 | TAN Zheng | — | Sold | 8,000,000 | HK$6.74 | HK$53.9M |