NeonC Technologies Holdings Insider Trading

NTHI

Cluster buy

3 insiders bought 723K of their own stock in 30 days.

Open-market purchases by executives and directors between Aug 17 and Sep 15. Buying is rarer than selling and says more, but it is one input, not a verdict.

Net open-market

+$1.32M

18 buys · 1 sale

Under a 10b5-1 plan

100%

of the value sold

Insiders who bought / sold

5 / 1

executives and directors

Last open-market buy

Sep 2026

Sep 15, 2026

Get an email when NTHI'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
Sep 15	Keithly Garnett CFO	Sold10b5-1 plan	5,000	$3.36	17K	1.8%	Form 4
Sep 14 – 15	Amir F Heshmatpour CEO, President	Bought 2 parts	50,000	$3.50 average	175K	0.7%	Form 4
Sep 11 – 14	Thomas C Chen CEO	Bought 2 parts	10,798	$3.71 average	40K	0.2%	Form 4
Sep 14	Keithly Garnett CFO	Bought	257	$3.89	1K	<0.1%	Form 4
Sep 11	Amir F Heshmatpour CEO, President	Bought	37,000	$3.67	136K	0.5%	Form 4
Aug 18	Thomas C Chen CEO	Bought	12,757	$5.49	70K	0.3%	Form 4
Aug 18	Amir F Heshmatpour CEO, President	Bought	9,000	$5.54	50K	0.1%	Form 4
Apr 10 – Aug 17	Thomas C Chen Chief Scientific Officer	Bought 4 parts	47,207	$4.09 average	193K	1.0%	Form 4
Aug 14 – 17	Amir F Heshmatpour CEO, President	Bought 2 parts	15,000	$3.91 average	59K	0.2%	Form 4
May 1	Amir F Heshmatpour President	Bought	10,000	$4.16	42K	0.1%	Form 4
Apr 28	Amir F Heshmatpour President	Bought	10,000	$4.52	45K	0.1%	Form 4
Apr 23	Yousha Neman-Ebrahim Chief Clinical Officer	Bought	500	$4.88	2K	0.4%	Form 4
Apr 23	Amir F Heshmatpour President	Bought	10,000	$4.90	49K	0.1%	Form 4
Apr 10	Amir F Heshmatpour President	Bought	10,000	$4.90	49K	0.1%	Form 4
Apr 9	David Suh Jr. Chief Accounting Officer	Bought	200	$5.00	1K	0.2%	Form 4
Apr 8 – 9	Amir F Heshmatpour President	Bought 2 parts	15,000	$5.47 average	82K	0.2%	Form 4
Apr 2 – 6	Amir F Heshmatpour President	Bought 2 parts	25,000	$6.14 average	153K	0.3%	Form 4
Nov 21, 2025 – Nov 24, 2025	Amir F Heshmatpour President	Bought 3 parts	30,000	$6.16 average	185K	0.3%	Form 4
Nov 20, 2025	Yousha Neman-Ebrahim Chief Clinical Officer	Bought	1,100	$6.69	7K	0.8%	Form 4
May 23, 2025	Amir F Heshmatpour President	Bought	2,000	$7.39	15K	<0.1%	Form 4
May 21, 2025 – May 22, 2025	Thomas C Chen CEO	Bought 2 parts	5,468	$7.31 average	40K	0.1%	Form 4
May 22, 2025	Keithly Garnett CFO	Bought	675	$7.29	5K	0.2%	Form 4
May 19, 2025	Keithly Garnett CFO	Bought	135	$7.23	$976	<0.1%	Form 4
May 11, 2025 – May 16, 2025	Amir F Heshmatpour President	Bought 6 parts	10,000	$10.65 average	107K	0.1%	Form 4
May 13, 2025	Keithly Garnett CFO	Bought	90	$7.01	$631	<0.1%	Form 4
Mar 26, 2025 – May 12, 2025	Jim Delshad Director	Bought 3 parts	5,100	$7.30 average	37K	10%	Form 4
May 12, 2025	Thomas C Chen CEO	Bought	400	$7.00	3K	<0.1%	Form 4
Apr 15, 2025	Keithly Garnett CFO	Bought	300	$5.38	2K	0.1%	Form 4
Mar 26, 2025	Ming-Fu (alan) Chiang Director	SoldNo plan 2 parts	57,696	$24.85 average	$1.43M	2.2%	Form 4
Mar 26, 2025	Patrick Walters COO	SoldNo plan 2 parts	11,847	$24.85 average	294K	1.3%	Form 4
Mar 26, 2025	Keithly Garnett CFO	SoldNo plan 2 parts	6,616	$24.85 average	164K	2.0%	Form 4
Mar 26, 2025	Amir F Heshmatpour Director	SoldNo plan 2 parts	38,464	$24.85 average	956K	0.6%	Form 4
Mar 26, 2025	Thomas C Chen CEO	SoldNo plan 2 parts	39,233	$24.85 average	975K	0.8%	Form 4

Sep 1510b5-1 plan
Keithly Garnett
CFO · sold 5,000 at $3.36
17K
1.8% of stake
Sep 14 – 15
Amir F Heshmatpour
CEO, President · bought 50,000 at avg $3.50
175K
0.7% of stake
Sep 11 – 14
Thomas C Chen
CEO · bought 10,798 at avg $3.71
40K
0.2% of stake
Sep 14
Keithly Garnett
CFO · bought 257 at $3.89
1K
<0.1% of stake
Sep 11
Amir F Heshmatpour
CEO, President · bought 37,000 at $3.67
136K
0.5% of stake
Aug 18
Thomas C Chen
CEO · bought 12,757 at $5.49
70K
0.3% of stake
Aug 18
Amir F Heshmatpour
CEO, President · bought 9,000 at $5.54
50K
0.1% of stake
Apr 10 – Aug 17
Thomas C Chen
Chief Scientific Officer · bought 47,207 at avg $4.09
193K
1.0% of stake
Aug 14 – 17
Amir F Heshmatpour
CEO, President · bought 15,000 at avg $3.91
59K
0.2% of stake
May 1
Amir F Heshmatpour
President · bought 10,000 at $4.16
42K
0.1% of stake
Apr 28
Amir F Heshmatpour
President · bought 10,000 at $4.52
45K
0.1% of stake
Apr 23
Yousha Neman-Ebrahim
Chief Clinical Officer · bought 500 at $4.88
2K
0.4% of stake
Apr 23
Amir F Heshmatpour
President · bought 10,000 at $4.90
49K
0.1% of stake
Apr 10
Amir F Heshmatpour
President · bought 10,000 at $4.90
49K
0.1% of stake
Apr 9
David Suh Jr.
Chief Accounting Officer · bought 200 at $5.00
1K
0.2% of stake
Apr 8 – 9
Amir F Heshmatpour
President · bought 15,000 at avg $5.47
82K
0.2% of stake
Apr 2 – 6
Amir F Heshmatpour
President · bought 25,000 at avg $6.14
153K
0.3% of stake
Nov 21, 2025 – Nov 24, 2025
Amir F Heshmatpour
President · bought 30,000 at avg $6.16
185K
0.3% of stake
Nov 20, 2025
Yousha Neman-Ebrahim
Chief Clinical Officer · bought 1,100 at $6.69
7K
0.8% of stake
May 23, 2025
Amir F Heshmatpour
President · bought 2,000 at $7.39
15K
<0.1% of stake
May 21, 2025 – May 22, 2025
Thomas C Chen
CEO · bought 5,468 at avg $7.31
40K
0.1% of stake
May 22, 2025
Keithly Garnett
CFO · bought 675 at $7.29
5K
0.2% of stake
May 19, 2025
Keithly Garnett
CFO · bought 135 at $7.23
$976
<0.1% of stake
May 11, 2025 – May 16, 2025
Amir F Heshmatpour
President · bought 10,000 at avg $10.65
107K
0.1% of stake
May 13, 2025
Keithly Garnett
CFO · bought 90 at $7.01
$631
<0.1% of stake
Mar 26, 2025 – May 12, 2025
Jim Delshad
Director · bought 5,100 at avg $7.30
37K
10% of stake
May 12, 2025
Thomas C Chen
CEO · bought 400 at $7.00
3K
<0.1% of stake
Apr 15, 2025
Keithly Garnett
CFO · bought 300 at $5.38
2K
0.1% of stake
Mar 26, 2025No plan
Ming-Fu (alan) Chiang
Director · sold 57,696 at avg $24.85
$1.43M
2.2% of stake
Mar 26, 2025No plan
Patrick Walters
COO · sold 11,847 at avg $24.85
294K
1.3% of stake
Mar 26, 2025No plan
Keithly Garnett
CFO · sold 6,616 at avg $24.85
164K
2.0% of stake
Mar 26, 2025No plan
Amir F Heshmatpour
Director · sold 38,464 at avg $24.85
956K
0.6% of stake
Mar 26, 2025No plan
Thomas C Chen
CEO · sold 39,233 at avg $24.85
975K
0.8% 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 NTHI, 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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Spot a number that looks wrong? Check it in NTHI'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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