Stock Trading CanaryHONG KONG · DIRECTORS' NOTICES
CStone Pharmaceuticals - B
02616 · Healthcare · Biotechnology
Score
79.0
Price vs insider buying
2616.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
4 insiders bought within 5 days, 8 Jun to 12 Jun: 4 Board member. 1 of them bought again later. The share closed at 4.46 on the first of those days and at 5.63 most recently (+26.3%).
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.
▮Purple band: several insiders bought within 15 days
The band marks the stretch with the most different buyers: at most 15 days long and at least two people. Here it is 8 Jun – 12 Jun, with 4 insiders. Only the strongest stretch is marked. Several people deciding the same thing is harder to explain by one person's private reasons, but insiders often buy together just after a closed period ends, so compare it with the grey weekly bars.
Blue line: this share's price, −33.2% over these six months
The closing price of each day, from 8.43 on 2026-05-11 to 5.63 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 |
|---|---|---|---|---|---|---|
| Yang Jianxin | Board member | 9 | — | 8.4M HKD | 2026-06-03 | +14.3% |
| Hitchner III Kenneth Walton | Board member | 1 | — | 1.8M HKD | 2026-06-08 | +26.3% |
| Li Wei | Board member | 3 | — | 1.1M HKD | 2026-06-10 | +29.8% |
| Hu Edward | Board member | 2 | — | 1.1M HKD | 2026-06-11 | +26.3% |
Insiders' buying price vs the latest close
Insiders paid 5.09 HKD a share on average (23 purchase lines, 4 buyers, 2025-11-11 – 2026-09-22). The close on 2026-11-05 was 10.8% above that price.
The latest purchase (2026-09-22) was at 5.63 HKD; the close was level with 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 |
|---|---|---|---|---|---|---|---|
| 2026-09-22 | 2026-09-22 | Yang Jianxin | Own name | Bought | 291,500 | HK$5.63 | HK$1.6M |
| 2026-09-18 | 2026-09-18 | Yang Jianxin | Own name | Bought | 72,000 | HK$5.42 | HK$390.6K |
| 2026-09-17 | 2026-09-17 | Yang Jianxin | Own name | Bought | 132,500 | HK$5.24 | HK$693.8K |
| 2026-06-30 | 2026-07-01 | Yang Jianxin | Own name | Bought | 331,000 | HK$4.64 | HK$1.5M |
| 2026-06-12 | 2026-06-16 | Li Wei | Own name | Bought | 100,000 | HK$4.56 | HK$456.0K |
| 2026-06-12 | 2026-06-15 | Hu Edward | Own name | Bought | 150,000 | HK$4.66 | HK$698.5K |
| 2026-06-12 | 2026-06-15 | Yang Jianxin | Own name | Bought | 56,500 | HK$4.66 | HK$263.3K |
| 2026-06-12 | 2026-06-12 | Yang Jianxin | Own name | Bought | 200,000 | HK$4.57 | HK$914.0K |
| 2026-06-11 | 2026-06-12 | Li Wei | Own name | Bought | 100,000 | HK$4.44 | HK$444.0K |
| 2026-06-11 | 2026-06-12 | Hu Edward | Own name | Bought | 100,000 | HK$4.47 | HK$447.0K |
| 2026-06-10 | 2026-06-11 | Li Wei | Own name | Bought | 50,000 | HK$4.40 | HK$220.0K |
| 2026-06-10 | 2026-06-10 | Yang Jianxin | Own name | Bought | 145,000 | HK$4.26 | HK$617.6K |
| 2026-06-09 | 2026-06-09 | Yang Jianxin | Own name | Bought | 200,000 | HK$4.25 | HK$851.0K |
| 2026-06-08 | 2026-06-10 | Hitchner III Kenneth Walton | Own name | Bought | 400,000 | HK$4.48 | HK$1.8M |
| 2026-06-05 | 2026-06-05 | Yang Jianxin | Own name | Bought | 200,000 | HK$4.75 | HK$951.0K |
| 2026-06-03 | 2026-06-03 | Yang Jianxin | Own name | Bought | 105,000 | HK$4.88 | HK$512.1K |
| 2026-03-04 | 2026-03-06 | Yang Jianxin | — | Sold | 12,620 | HK$5.97 | HK$75.4K |
| 2026-02-04 | 2026-02-05 | Yang Jianxin | — | Sold | 9,507 | HK$5.19 | HK$49.3K |
| 2026-01-23 | 2026-01-23 | Yang Jianxin | Own name | Bought | 148,500 | HK$5.47 | HK$812.8K |
| 2026-01-22 | 2026-01-23 | Yang Jianxin | Own name | Bought | 280,000 | HK$5.47 | HK$1.5M |
| 2026-01-06 | 2026-01-07 | Yang Jianxin | — | Sold | 4,817 | HK$5.35 | HK$25.8K |
| 2025-12-04 | 2025-12-05 | Hu Edward | Own name | Bought | 1,000,000 | HK$5.75 | HK$5.8M |
| 2025-12-03 | 2025-12-05 | Yang Jianxin | — | Sold | 58,629 | HK$5.62 | HK$329.4K |
| 2025-11-14 | 2025-11-14 | Yang Jianxin | Own name | Bought | 40,000 | HK$6.14 | HK$245.6K |
| 2025-11-13 | 2025-11-14 | Yang Jianxin | Own name | Bought | 117,500 | HK$5.42 | HK$636.7K |
| 2025-11-12 | 2025-11-13 | Yang Jianxin | Own name | Bought | 70,000 | HK$5.49 | HK$384.2K |
| 2025-11-11 | 2025-11-13 | Yang Jianxin | Own name | Bought | 100,000 | HK$5.34 | HK$534.5K |
Purchases not counted · 10
Director notices of a purchase that the score leaves out, and why.
| Trade date | Director | Why not counted | Shares |
|---|---|---|---|
| 2024-04-16 | Yang Jianxin | Replaced by an amendment | 200,000 |
| 2024-04-16 | Yang Jianxin | Replaced by an amendment | 200,000 |
| 2024-04-12 | Hitchner III Kenneth Walton | Replaced by an amendment | 152,000 |
| 2024-04-12 | Hitchner III Kenneth Walton | Replaced by an amendment | 518,500 |
| 2024-04-11 | Hitchner III Kenneth Walton | Replaced by an amendment | 121,500 |
| 2024-04-11 | Hitchner III Kenneth Walton | Replaced by an amendment | 415,000 |
| 2024-04-10 | Hitchner III Kenneth Walton | Replaced by an amendment | 90,500 |
| 2024-04-10 | Hitchner III Kenneth Walton | Replaced by an amendment | 312,917 |
| 2024-04-09 | Hitchner III Kenneth Walton | Replaced by an amendment | 252,500 |
| 2024-04-09 | Hitchner III Kenneth Walton | Replaced by an amendment | 1,441,523 |