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Listed

7630 IMPACT THERAP-B

IMPACT Therapeutics, Inc

Commercial-stage biotechnology company focused on synthetic lethality-based precision anti-cancer therapies globally; its core product, senaparib, was commercialized in China in January 2025 as first-line maintenance therapy for ovarian cancer across all patient populations regardless of mutation status.

Overview

Company
IMPACT Therapeutics, Inc
Sector
Biotechnology / Oncology / Precision anti-cancer therapies
Allocation mechanism
-
Listing date
May 13, 2026

Offer Details

Offer price
HKD 20.1
Board lot
200
Total offer shares
41,977,000
Hong Kong offer shares
4,197,800
International offer shares
37,779,200
Minimum application
200 shares
Gross proceeds
HKD 843,700,000
Net proceeds
HKD 759,500,000

Allocation Result

Valid applications
221,788
Subscription multiple
2,282.4x
One-lot success rate
1.5%
Successful applications
18,774

Basis of Allocation

Success Rate Trend

Each line runs from the lowest application tier to the highest tier within its own pool. Hover or tap a point for the exact tier.

Pool APool B
0%25%50%75%100%FewerMidMorePool A · Applied shares 200 · Applied lots 1 lots · Valid applications 67,375 · Successful applications 1,010 · Success rate 1.5%Pool A · 1 lotsSuccess rate 1.5%Pool A · Applied shares 400 · Applied lots 2 lots · Valid applications 31,423 · Successful applications 487 · Success rate 1.55%Pool A · 2 lotsSuccess rate 1.55%Pool A · Applied shares 600 · Applied lots 3 lots · Valid applications 7,145 · Successful applications 114 · Success rate 1.6%Pool A · 3 lotsSuccess rate 1.6%Pool A · Applied shares 800 · Applied lots 4 lots · Valid applications 4,135 · Successful applications 68 · Success rate 1.64%Pool A · 4 lotsSuccess rate 1.64%Pool A · Applied shares 1,000 · Applied lots 5 lots · Valid applications 5,633 · Successful applications 96 · Success rate 1.7%Pool A · 5 lotsSuccess rate 1.7%Pool A · Applied shares 1,200 · Applied lots 6 lots · Valid applications 2,889 · Successful applications 51 · Success rate 1.77%Pool A · 6 lotsSuccess rate 1.77%Pool A · Applied shares 1,400 · Applied lots 7 lots · Valid applications 2,481 · Successful applications 45 · Success rate 1.81%Pool A · 7 lotsSuccess rate 1.81%Pool A · Applied shares 1,600 · Applied lots 8 lots · Valid applications 2,331 · Successful applications 43 · Success rate 1.84%Pool A · 8 lotsSuccess rate 1.84%Pool A · Applied shares 1,800 · Applied lots 9 lots · Valid applications 2,223 · Successful applications 43 · Success rate 1.93%Pool A · 9 lotsSuccess rate 1.93%Pool A · Applied shares 2,000 · Applied lots 10 lots · Valid applications 21,604 · Successful applications 422 · Success rate 1.95%Pool A · 10 lotsSuccess rate 1.95%Pool A · Applied shares 3,000 · Applied lots 15 lots · Valid applications 5,244 · Successful applications 115 · Success rate 2.19%Pool A · 15 lotsSuccess rate 2.19%Pool A · Applied shares 4,000 · Applied lots 20 lots · Valid applications 6,287 · Successful applications 153 · Success rate 2.43%Pool A · 20 lotsSuccess rate 2.43%Pool A · Applied shares 5,000 · Applied lots 25 lots · Valid applications 2,883 · Successful applications 77 · Success rate 2.67%Pool A · 25 lotsSuccess rate 2.67%Pool A · Applied shares 6,000 · Applied lots 30 lots · Valid applications 1,867 · Successful applications 55 · Success rate 2.95%Pool A · 30 lotsSuccess rate 2.95%Pool A · Applied shares 7,000 · Applied lots 35 lots · Valid applications 1,308 · Successful applications 41 · Success rate 3.13%Pool A · 35 lotsSuccess rate 3.13%Pool A · Applied shares 8,000 · Applied lots 40 lots · Valid applications 1,141 · Successful applications 39 · Success rate 3.42%Pool A · 40 lotsSuccess rate 3.42%Pool A · Applied shares 9,000 · Applied lots 45 lots · Valid applications 1,085 · Successful applications 40 · Success rate 3.69%Pool A · 45 lotsSuccess rate 3.69%Pool A · Applied shares 10,000 · Applied lots 50 lots · Valid applications 7,202 · Successful applications 282 · Success rate 3.92%Pool A · 50 lotsSuccess rate 3.92%Pool A · Applied shares 20,000 · Applied lots 100 lots · Valid applications 6,048 · Successful applications 380 · Success rate 6.28%Pool A · 100 lotsSuccess rate 6.28%Pool A · Applied shares 30,000 · Applied lots 150 lots · Valid applications 4,890 · Successful applications 424 · Success rate 8.67%Pool A · 150 lotsSuccess rate 8.67%Pool A · Applied shares 40,000 · Applied lots 200 lots · Valid applications 4,190 · Successful applications 463 · Success rate 11.05%Pool A · 200 lotsSuccess rate 11.05%Pool A · Applied shares 50,000 · Applied lots 250 lots · Valid applications 2,441 · Successful applications 328 · Success rate 13.44%Pool A · 250 lotsSuccess rate 13.44%Pool A · Applied shares 60,000 · Applied lots 300 lots · Valid applications 1,914 · Successful applications 302 · Success rate 15.78%Pool A · 300 lotsSuccess rate 15.78%Pool A · Applied shares 70,000 · Applied lots 350 lots · Valid applications 1,434 · Successful applications 260 · Success rate 18.13%Pool A · 350 lotsSuccess rate 18.13%Pool A · Applied shares 80,000 · Applied lots 400 lots · Valid applications 1,524 · Successful applications 313 · Success rate 20.54%Pool A · 400 lotsSuccess rate 20.54%Pool A · Applied shares 90,000 · Applied lots 450 lots · Valid applications 1,259 · Successful applications 289 · Success rate 22.95%Pool A · 450 lotsSuccess rate 22.95%Pool A · Applied shares 100,000 · Applied lots 500 lots · Valid applications 8,062 · Successful applications 2,041 · Success rate 25.32%Pool A · 500 lotsSuccess rate 25.32%Pool A · Applied shares 200,000 · Applied lots 1,000 lots · Valid applications 5,128 · Successful applications 2,514 · Success rate 49.02%Pool A · 1,000 lotsSuccess rate 49.02%Pool B · Applied shares 300,000 · Applied lots 1,500 lots · Valid applications 5,016 · Successful applications 3,182 · Success rate 63.44%Pool B · 1,500 lotsSuccess rate 63.44%Pool B · Applied shares 400,000 · Applied lots 2,000 lots · Valid applications 1,603 · Successful applications 1,199 · Success rate 74.8%Pool B · 2,000 lotsSuccess rate 74.8%Pool B · Applied shares 500,000 · Applied lots 2,500 lots · Valid applications 903 · Successful applications 778 · Success rate 86.16%Pool B · 2,500 lotsSuccess rate 86.16%Pool B · Applied shares 600,000 · Applied lots 3,000 lots · Valid applications 503 · Successful applications 503 · Success rate 100%Pool B · 3,000 lotsSuccess rate 100%Pool B · Applied shares 700,000 · Applied lots 3,500 lots · Valid applications 397 · Successful applications 397 · Success rate 100%Pool B · 3,500 lotsSuccess rate 100%Pool B · Applied shares 800,000 · Applied lots 4,000 lots · Valid applications 250 · Successful applications 250 · Success rate 100%Pool B · 4,000 lotsSuccess rate 100%Pool B · Applied shares 900,000 · Applied lots 4,500 lots · Valid applications 184 · Successful applications 184 · Success rate 100%Pool B · 4,500 lotsSuccess rate 100%Pool B · Applied shares 1,000,000 · Applied lots 5,000 lots · Valid applications 444 · Successful applications 444 · Success rate 100%Pool B · 5,000 lotsSuccess rate 100%Pool B · Applied shares 1,250,000 · Applied lots 6,250 lots · Valid applications 227 · Successful applications 227 · Success rate 100%Pool B · 6,250 lotsSuccess rate 100%Pool B · Applied shares 1,500,000 · Applied lots 7,500 lots · Valid applications 148 · Successful applications 148 · Success rate 100%Pool B · 7,500 lotsSuccess rate 100%Pool B · Applied shares 1,750,000 · Applied lots 8,750 lots · Valid applications 127 · Successful applications 127 · Success rate 100%Pool B · 8,750 lotsSuccess rate 100%Pool B · Applied shares 2,098,800 · Applied lots 10,494 lots · Valid applications 840 · Successful applications 840 · Success rate 100%Pool B · 10,494 lotsSuccess rate 100%1.5%1.84%3.13%11.05%49.02%63.44%100%100%100%100%Applied lots: Fewer -> MoreSuccess rate
PoolApplied sharesSuccess rate
A

200

Applied lots: 1 · Valid applications: 67,375 · Successful applications: 1,010 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 1.5%

1.5%
A

400

Applied lots: 2 · Valid applications: 31,423 · Successful applications: 487 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.77%

1.55%
A

600

Applied lots: 3 · Valid applications: 7,145 · Successful applications: 114 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.53%

1.6%
A

800

Applied lots: 4 · Valid applications: 4,135 · Successful applications: 68 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.41%

1.64%
A

1,000

Applied lots: 5 · Valid applications: 5,633 · Successful applications: 96 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.34%

1.7%
A

1,200

Applied lots: 6 · Valid applications: 2,889 · Successful applications: 51 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.29%

1.77%
A

1,400

Applied lots: 7 · Valid applications: 2,481 · Successful applications: 45 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.26%

1.81%
A

1,600

Applied lots: 8 · Valid applications: 2,331 · Successful applications: 43 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.23%

1.84%
A

1,800

Applied lots: 9 · Valid applications: 2,223 · Successful applications: 43 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.21%

1.93%
A

2,000

Applied lots: 10 · Valid applications: 21,604 · Successful applications: 422 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.2%

1.95%
A

3,000

Applied lots: 15 · Valid applications: 5,244 · Successful applications: 115 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.15%

2.19%
A

4,000

Applied lots: 20 · Valid applications: 6,287 · Successful applications: 153 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.12%

2.43%
A

5,000

Applied lots: 25 · Valid applications: 2,883 · Successful applications: 77 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.11%

2.67%
A

6,000

Applied lots: 30 · Valid applications: 1,867 · Successful applications: 55 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.1%

2.95%
A

7,000

Applied lots: 35 · Valid applications: 1,308 · Successful applications: 41 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.09%

3.13%
A

8,000

Applied lots: 40 · Valid applications: 1,141 · Successful applications: 39 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.09%

3.42%
A

9,000

Applied lots: 45 · Valid applications: 1,085 · Successful applications: 40 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.08%

3.69%
A

10,000

Applied lots: 50 · Valid applications: 7,202 · Successful applications: 282 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.08%

3.92%
A

20,000

Applied lots: 100 · Valid applications: 6,048 · Successful applications: 380 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.06%

6.28%
A

30,000

Applied lots: 150 · Valid applications: 4,890 · Successful applications: 424 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.06%

8.67%
A

40,000

Applied lots: 200 · Valid applications: 4,190 · Successful applications: 463 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.06%

11.05%
A

50,000

Applied lots: 250 · Valid applications: 2,441 · Successful applications: 328 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.05%

13.44%
A

60,000

Applied lots: 300 · Valid applications: 1,914 · Successful applications: 302 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.05%

15.78%
A

70,000

Applied lots: 350 · Valid applications: 1,434 · Successful applications: 260 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.05%

18.13%
A

80,000

Applied lots: 400 · Valid applications: 1,524 · Successful applications: 313 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.05%

20.54%
A

90,000

Applied lots: 450 · Valid applications: 1,259 · Successful applications: 289 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.05%

22.95%
A

100,000

Applied lots: 500 · Valid applications: 8,062 · Successful applications: 2,041 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.05%

25.32%
A

200,000

Applied lots: 1,000 · Valid applications: 5,128 · Successful applications: 2,514 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.05%

49.02%
B

300,000

Applied lots: 1,500 · Valid applications: 5,016 · Successful applications: 3,182 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.04%

63.44%
B

400,000

Applied lots: 2,000 · Valid applications: 1,603 · Successful applications: 1,199 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.04%

74.8%
B

500,000

Applied lots: 2,500 · Valid applications: 903 · Successful applications: 778 · Allocated shares: 0-200 · Allocated lots: 0-1 · Allotted %: 0.03%

86.16%
B

600,000

Applied lots: 3,000 · Valid applications: 503 · Successful applications: 503 · Allocated shares: 200 · Allocated lots: 1 · Allotted %: 0.03%

100%
B

700,000

Applied lots: 3,500 · Valid applications: 397 · Successful applications: 397 · Allocated shares: 200-400 · Allocated lots: 1-2 · Allotted %: 0.03%

100%
B

800,000

Applied lots: 4,000 · Valid applications: 250 · Successful applications: 250 · Allocated shares: 200-400 · Allocated lots: 1-2 · Allotted %: 0.03%

100%
B

900,000

Applied lots: 4,500 · Valid applications: 184 · Successful applications: 184 · Allocated shares: 200-400 · Allocated lots: 1-2 · Allotted %: 0.03%

100%
B

1,000,000

Applied lots: 5,000 · Valid applications: 444 · Successful applications: 444 · Allocated shares: 200-400 · Allocated lots: 1-2 · Allotted %: 0.03%

100%
B

1,250,000

Applied lots: 6,250 · Valid applications: 227 · Successful applications: 227 · Allocated shares: 200-400 · Allocated lots: 1-2 · Allotted %: 0.03%

100%
B

1,500,000

Applied lots: 7,500 · Valid applications: 148 · Successful applications: 148 · Allocated shares: 400 · Allocated lots: 2 · Allotted %: 0.03%

100%
B

1,750,000

Applied lots: 8,750 · Valid applications: 127 · Successful applications: 127 · Allocated shares: 400-600 · Allocated lots: 2-3 · Allotted %: 0.03%

100%
B

2,098,800

Applied lots: 10,494 · Valid applications: 840 · Successful applications: 840 · Allocated shares: 400-600 · Allocated lots: 2-3 · Allotted %: 0.03%

100%