Insider trading

Period: 120 months Stock: ONC Minimum amount: $10M × + Add filter Clear all
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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

48 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

48 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

48 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

48 decisions over 120 months Remove this filter
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
48 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
48 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

48 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
28 Sep 2026
Wang Xiaodong Director
Sold on a plan 10×
$11.32M 31,028 at 364.79
100%
Sold half or more
8 Sep 2026
Wang Xiaodong Director
Sold on a plan 8×
$13.37M 38,287 at 349.10
100%
Sold half or more
12 Aug 2026
OYLER JOHN Chief Executive Officer
Sold on a plan 5×
$19.66M 54,892 at 358.15
100%
Sold half or more
11 Aug 2026
OYLER JOHN Chief Executive Officer
Sold on a plan 9×
$25.66M 70,907 at 361.90
56.4%
Sold half or more
10 Aug 2026
OYLER JOHN Chief Executive Officer
Sold on a plan 10×
$41.16M 115,011 at 357.87
47.8%
Planned (10b5-1)
21 Jul 2026
OYLER JOHN Chief Executive Officer
Sold on a plan 5×
$19.50M 61,397 at 317.67
100%
Sold half or more
20 Jul 2026
OYLER JOHN Chief Executive Officer
Sold on a plan 9×
$15.09M 48,316 at 312.25
100%
Sold half or more
17 Jul 2026
OYLER JOHN Chief Executive Officer
Sold on a plan 9×
$20.16M 64,628 at 312.00
100%
Sold half or more
16 Jul 2026
OYLER JOHN Chief Executive Officer
Sold on a plan 12×
$52.99M 166,597 at 318.09
100%
Sold half or more
15 Jul 2026
OYLER JOHN Chief Executive Officer
Sold on a plan 5×
$36.36M 116,557 at 311.95
100%
Sold half or more
14 Jul 2026
OYLER JOHN Chief Executive Officer
Sold on a plan 6×
$44.63M 145,861 at 305.95
100%
Sold half or more
13 Jul 2026
OYLER JOHN Chief Executive Officer
Sold on a plan 7×
$14.77M 48,520 at 304.35
100%
Sold half or more
15 Dec 2025
OYLER JOHN Chief Executive Officer
Sold on a plan 14×
$23.28M 75,631 at 307.79
75.6%
Sold half or more
14 Aug 2025
Wu Xiaobin President and COO
Sold on a plan 8×
$12.18M 39,936 at 305.06
100%
Sold half or more
13 Aug 2025
Wu Xiaobin President and COO
Sold on a plan 8×
$15.16M 49,858 at 304.16
100%
Sold half or more
10 Jun 2025
Wang Xiaodong Director
Sold on a plan 5×
$10.98M 41,760 at 262.82
100%
Sold half or more
14 Apr 2025
Wang Xiaodong Director
Sold on a plan 13×
$10.13M 41,760 at 242.66
100%
Sold half or more
1 Apr 2025
Wu Xiaobin President, COO & GM China
Sold on a plan 4×
$14.61M 51,921 at 281.40
100%
Sold half or more
18 Mar 2025
Wang Xiaodong Director
Sold on a plan 7×
$10.91M 41,760 at 261.28
100%
Sold half or more
10 Mar 2025
OYLER JOHN Chief Executive Officer
Sold at will 9×
$10.00M 41,210 at 242.67
100%
Sold half or more
7 Mar 2025
OYLER JOHN Chief Executive Officer
Sold at will 13×
$14.60M 58,590 at 249.13
100%
Sold half or more
6 Mar 2025
OYLER JOHN Chief Executive Officer
Sold at will 8×
$10.39M 40,109 at 259.15
100%
Sold half or more
5 Mar 2025
Wu Xiaobin President, COO & GM China
Sold on a plan 4×
$13.58M 51,921 at 261.59
100%
Sold half or more
3 Mar 2025
OYLER JOHN Chief Executive Officer
Sold at will 12×
$24.67M 101,000 at 244.30
100%
Sold half or more
28 Feb 2025
BAKER BROS. ADVISORS LP Director · indirect
Sold at will 2×
$190.54M 732,827 at 260.00
50.1%
Sold half or more
9 Dec 2024
BAKER BROS. ADVISORS LP Director · indirect
Sold at will 4×
$194.20M 1,037,017 at 187.27
56.7%
Sold half or more
2 Dec 2024
HHLR ADVISORS, LTD. 10% owner · indirect
Sold at will
$3.57B 17,842,500 at 200.00
12.5%
Not planned
14 Nov 2023
BAKER BROS. ADVISORS LP Director · indirect
Sold at will 2×
$198.55M 1,100,000 at 180.50
55.6%
Sold half or more
14 Jun 2023
HHLR ADVISORS, LTD. 10% owner · indirect
Sold at will
$56.86M 273,728 at 207.72
0.2%
Not planned
13 Jun 2023
HHLR ADVISORS, LTD. 10% owner · indirect
Sold at will 2×
$169.45M 924,400 at 183.31
0.6%
Not planned
12 Jun 2023
HHLR ADVISORS, LTD. 10% owner · indirect
Sold at will 2×
$244.06M 1,250,212 at 195.21
0.9%
Not planned
9 Jun 2023
HHLR ADVISORS, LTD. 10% owner · indirect
Sold at will 2×
$99.24M 542,652 at 182.89
0.4%
Not planned
8 Jun 2023
HHLR ADVISORS, LTD. 10% owner · indirect
Sold at will
$253.88M 1,163,825 at 218.14
0.8%
Not planned
8 Mar 2023
Wang Xiaodong Director
Sold, plan not stated 8×
$15.29M 67,635 at 226.03
100%
Sold half or more
14 Sep 2021
OYLER JOHN Chief Executive Officer
Sold, plan not stated 9×
$13.90M 37,877 at 367.02
100%
Sold half or more
10 Sep 2021
AMGEN INC 10% owner
Bought
$50.00M 165,529 at 302.06
0.9%
First buy on file
31 Aug 2021
OYLER JOHN Chief Executive Officer
Sold, plan not stated 9×
$10.42M 34,281 at 303.82
100%
Sold half or more
4 Aug 2021
OYLER JOHN Chief Executive Officer
Sold, plan not stated 8×
$10.93M 31,747 at 344.13
100%
Sold half or more
3 Aug 2021
OYLER JOHN Chief Executive Officer
Sold, plan not stated 18×
$14.16M 41,959 at 337.48
100%
Sold half or more
4 Jan 2021
BAKER BROS. ADVISORS LP Director · indirect
Sold, plan not stated 2×
$26.71M 121,154 at 220.50
11.1%
14 Dec 2020
Liang Howard CFO & Chief Strategy Officer
Sold, plan not stated 10×
$21.05M 91,900 at 229.04
100%
Sold half or more
4 Dec 2020
BAKER BROS. ADVISORS LP Director · indirect
Sold, plan not stated 2×
$333.30M 1,511,546 at 220.50
60.7%
Sold half or more
17 Dec 2019
OYLER JOHN Chief Executive Officer
Sold, plan not stated 7×
$10.00M 62,259 at 160.62
100%
Sold half or more
2 Aug 2018
BAKER BROS. ADVISORS LP Director · indirect
Bought 2×
$627.92M 5,814,100 at 108.00
opened
First buy on file
18 Jan 2018
BAKER BROS. ADVISORS LP Director · indirect
Bought 2×
$200.00M 1,980,198 at 101.00
63.0%
First buy on file
11 Aug 2017
BAKER BROS. ADVISORS LP Director · indirect
Bought 2×
$12.50M 176,056 at 71.00
5.3%
First buy on file
6 Jul 2017
OYLER JOHN Chief Executive Officer
Sold, plan not stated 9×
$14.22M 219,400 at 64.82
100%
Sold half or more
18 Nov 2016
BAKER BROS. ADVISORS LP Director · indirect
Bought 2×
$56.34M 1,760,495 at 32.00
113%
First buy on file
Showing 1–48 of 48.