CG Oncology, Inc. Insider Trading

CGON

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Last 12 months

Insiders bought $24.8M and sold $4.83M on the open market.

All of the selling was scheduled in advance under 10b5-1 plans.

Net open-market

+$20M

1 buy · 13 sales

Under a 10b5-1 plan

100%

of the value sold

Insiders who bought / sold

1 / 2

executives and directors

Last open-market buy

Jun 2026

Jun 25, 2026

Get an email when CGON's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Oct 15	Leonard E Post Director	Sold10b5-1 plan 2 parts	1,000	$62.07 average	62K	100%	Form 4
Sep 15	Leonard E Post Director	Sold10b5-1 plan	1,000	$72.98	73K	100%	Form 4
Aug 14	Leonard E Post Director	Sold10b5-1 plan	1,000	$74.54	75K	100%	Form 4
Jul 15	Leonard E Post Director	Sold10b5-1 plan	1,000	$71.17	71K	100%	Form 4
Jul 10	James Mulay Director	Sold10b5-1 plan	24,165	$75.16	$1.82M	100%	Form 4
Jun 25	Brian Guan-Chyun Liu Director	Bought	371,085	$66.87	$24.8M	24%	Form 4
Jun 24	Leonard E Post Director	Sold10b5-1 plan	5,000	$70.00	350K	100%	Form 4
Jun 22	Leonard E Post Director	Sold10b5-1 plan	5,000	$65.00	325K	100%	Form 4
Jun 15	James Mulay Director	Sold10b5-1 plan 2 parts	1,964	$60.12 average	118K	100%	Form 4
Jun 4	Leonard E Post Director	Sold10b5-1 plan	1,000	$54.50	55K	100%	Form 4
Apr 17	James Mulay Director	Sold10b5-1 plan	15,600	$73.01	$1.14M	100%	Form 4
Mar 16	James Mulay Director	Sold10b5-1 plan 2 parts	1,964	$63.50 average	125K	100%	Form 4
Jan 9	James Mulay Director	Sold10b5-1 plan 2 parts	11,145	$52.47 average	585K	100%	Form 4
Nov 17, 2025	Leonard E Post Director	Sold10b5-1 plan	1,000	$41.43	41K	100%	Form 4
Oct 13, 2025	Leonard E Post Director	Sold10b5-1 plan	1,000	$43.25	43K	100%	Form 4
Oct 9, 2025	James Mulay Director	Sold10b5-1 plan	5,903	$43.99	260K	100%	Form 4
Sep 30, 2025	Leonard E Post Director	Sold10b5-1 plan	5,000	$40.09	200K	100%	Form 4
Sep 29, 2025	James Mulay Director	Sold10b5-1 plan	12,755	$39.19	500K	100%	Form 4
Sep 18, 2025 – Sep 19, 2025	James Mulay Director	Sold10b5-1 plan 2 parts	22,686	$39.01 average	885K	100%	Form 4
Sep 15, 2025	Leonard E Post Director	Sold10b5-1 plan	1,000	$35.10	35K	100%	Form 4
Sep 11, 2025	Brian Guan-Chyun Liu Director	Bought	1,515,151	$33.00	$50M	New	Form 4
Sep 5, 2025	James Mulay Director	Sold10b5-1 plan 4 parts	27,015	$31.53 average	852K	100%	Form 4
Sep 3, 2025	Hong Fang Song Director	Sold10b5-1 plan 4 parts	100,000	$27.80 average	$2.78M	1.4%	Form 4
Sep 3, 2025	Leonard E Post Director	Sold10b5-1 plan	1,000	$28.00	28K	100%	Form 4
Jul 17, 2025	Leonard E Post Director	Sold10b5-1 plan	2,000	$28.00	56K	100%	Form 4
May 21, 2025	Leonard E Post Director	Sold10b5-1 plan	1,000	$28.00	28K	100%	Form 4
Apr 28, 2025	Leonard E Post Director	Sold10b5-1 plan	1,000	$30.76	31K	100%	Form 4
Mar 17, 2025	Leonard E Post Director	Sold10b5-1 plan	1,000	$28.00	28K	100%	Form 4
Feb 18, 2025	Leonard E Post Director	Sold10b5-1 plan	1,000	$28.61	29K	100%	Form 4
Jan 13, 2025	Leonard E Post Director	Sold10b5-1 plan	1,000	$29.66	30K	100%	Form 4
Dec 16, 2024	Hong Fang Song Director	SoldNo plan	700,000	$28.00	$19.6M	14%	Form 4
Dec 16, 2024	Leonard E Post Director	Sold10b5-1 plan	1,000	$28.84	29K	100%	Form 4
Dec 6, 2024	Leonard E Post Director	Sold10b5-1 plan 2 parts	1,000	$34.55 average	35K	100%	Form 4

Oct 1510b5-1 plan
Leonard E Post
Director · sold 1,000 at avg $62.07
62K
100% of stake
Sep 1510b5-1 plan
Leonard E Post
Director · sold 1,000 at $72.98
73K
100% of stake
Aug 1410b5-1 plan
Leonard E Post
Director · sold 1,000 at $74.54
75K
100% of stake
Jul 1510b5-1 plan
Leonard E Post
Director · sold 1,000 at $71.17
71K
100% of stake
Jul 1010b5-1 plan
James Mulay
Director · sold 24,165 at $75.16
$1.82M
100% of stake
Jun 25
Brian Guan-Chyun Liu
Director · bought 371,085 at $66.87
$24.8M
24% of stake
Jun 2410b5-1 plan
Leonard E Post
Director · sold 5,000 at $70.00
350K
100% of stake
Jun 2210b5-1 plan
Leonard E Post
Director · sold 5,000 at $65.00
325K
100% of stake
Jun 1510b5-1 plan
James Mulay
Director · sold 1,964 at avg $60.12
118K
100% of stake
Jun 410b5-1 plan
Leonard E Post
Director · sold 1,000 at $54.50
55K
100% of stake
Apr 1710b5-1 plan
James Mulay
Director · sold 15,600 at $73.01
$1.14M
100% of stake
Mar 1610b5-1 plan
James Mulay
Director · sold 1,964 at avg $63.50
125K
100% of stake
Jan 910b5-1 plan
James Mulay
Director · sold 11,145 at avg $52.47
585K
100% of stake
Nov 17, 202510b5-1 plan
Leonard E Post
Director · sold 1,000 at $41.43
41K
100% of stake
Oct 13, 202510b5-1 plan
Leonard E Post
Director · sold 1,000 at $43.25
43K
100% of stake
Oct 9, 202510b5-1 plan
James Mulay
Director · sold 5,903 at $43.99
260K
100% of stake
Sep 30, 202510b5-1 plan
Leonard E Post
Director · sold 5,000 at $40.09
200K
100% of stake
Sep 29, 202510b5-1 plan
James Mulay
Director · sold 12,755 at $39.19
500K
100% of stake
Sep 18, 2025 – Sep 19, 202510b5-1 plan
James Mulay
Director · sold 22,686 at avg $39.01
885K
100% of stake
Sep 15, 202510b5-1 plan
Leonard E Post
Director · sold 1,000 at $35.10
35K
100% of stake
Sep 11, 2025
Brian Guan-Chyun Liu
Director · bought 1,515,151 at $33.00
$50M
New position
Sep 5, 202510b5-1 plan
James Mulay
Director · sold 27,015 at avg $31.53
852K
100% of stake
Sep 3, 202510b5-1 plan
Hong Fang Song
Director · sold 100,000 at avg $27.80
$2.78M
1.4% of stake
Sep 3, 202510b5-1 plan
Leonard E Post
Director · sold 1,000 at $28.00
28K
100% of stake
Jul 17, 202510b5-1 plan
Leonard E Post
Director · sold 2,000 at $28.00
56K
100% of stake
May 21, 202510b5-1 plan
Leonard E Post
Director · sold 1,000 at $28.00
28K
100% of stake
Apr 28, 202510b5-1 plan
Leonard E Post
Director · sold 1,000 at $30.76
31K
100% of stake
Mar 17, 202510b5-1 plan
Leonard E Post
Director · sold 1,000 at $28.00
28K
100% of stake
Feb 18, 202510b5-1 plan
Leonard E Post
Director · sold 1,000 at $28.61
29K
100% of stake
Jan 13, 202510b5-1 plan
Leonard E Post
Director · sold 1,000 at $29.66
30K
100% of stake
Dec 16, 2024No plan
Hong Fang Song
Director · sold 700,000 at $28.00
$19.6M
14% of stake
Dec 16, 202410b5-1 plan
Leonard E Post
Director · sold 1,000 at $28.84
29K
100% of stake
Dec 6, 202410b5-1 plan
Leonard E Post
Director · sold 1,000 at avg $34.55
35K
100% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch CGON, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Held by ETFs

CGON is in 74 US ETFs. The largest of them, with CGON's weight in each:

Spot a number that looks wrong? Check it in CGON's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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