OneMedNet ONMD Insider Ownership

NASDAQ ONMD

$4.67 +0.05 (+1.07%)

As of: Oct 20, 2026 · 1:31 PM EDT

Insider Holdings by Owner

3.11Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

50.67%

▲+2.74% pp QoQ

Shares Held by Insiders

2.94Mn

filed for Sep 2026

▲+5.73% QoQ

Shares Outstanding

5.80Mn

5,801,984 shares

Direct Holdings

2.94Mn

Indirect: 0

Net Shares Traded (QoQ)

+159.21K

net buying in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Over the past 12 months, OneMedNet insiders bought $2.44 million of stock on the open market and sold $218,625.

A count shows 3 insiders buying ONMD stock on the open market over the past 12 months and one insider selling.
Among OneMedNet insiders, Thomas Kosasa (Director and 10% owner) led open-market buying over the past 12 months with $1.35 million of purchases; the latest was on July 30, 2026.
On the selling side, Aaron Green (Chief Executive Officer) was the top open-market seller of OneMedNet over the past 12 months, with $218,625 sold and the latest sale on November 18, 2025.
The latest open-market trade in ONMD stock by an insider was a purchase for $90,000 by Jeffrey Yu (Chief Medical Officer) on September 10, 2026.
Per Business Quant, ONMD insiders together hold 2.94Mn shares based on their latest Form 4 filings, up 5.73% from 2.78Mn shares (split-adjusted) at the end of Q2 2026.
OneMedNet insiders report no indirect holdings: all 2.94Mn shares are held directly.
Holdings in OneMedNet stock are reported by 4 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
ONMD's largest insider holders by reported holdings are Thomas Kosasa (Director and 10% owner, 1.85Mn shares), Jeffrey Yu (Chief Medical Officer, 892.33K shares) and Aaron Green (Chief Executive Officer, 189.64K shares).
Of the shares held by ONMD insiders, 63.06% belong to Thomas Kosasa.
Institutional holders reported 16.60% of OneMedNet's outstanding shares for Q2 2026; insiders' latest Form 4 filings put their stake at about 50.67%, and other investors, including the public, hold the remaining 32.73%.
Over the past 12 months, 4 insiders reported transactions in OneMedNet stock in 11 Form 4 filings.
The insider holdings and trades above for OneMedNet reflect Form 4 filings through September 14, 2026.

Form 4 Holdings

Insiders Holding ONMD

Insiders 5

Shares held 3.11Mn

Of outstanding 53.67%

#	Insider	Position	Direct	Total	Share of Insiders	Last Filed
1	Thomas Kosasa	Director, TenPercentOwner	1,983,573	1,983,573	63.7%	13 Oct, 2026
2	Jeffrey Yu	Chief Medical Officer	896,840	896,840	28.8%	13 Oct, 2026
3	Aaron Green	Chief Executive Officer	189,638	189,638	6.1%	23 Jun, 2026
4	Capital Management Llc Shaolin	TenPercentOwner	40,000	40,000	1.3%	13 Jan, 2023
5	Kenneth Alleyne	Director	3,822	3,822	0.1%	26 Nov, 2025

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

18 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
07 Oct, 2026	Thomas Kosasa	Director, TenPercentOwner	Acquired P	129,758	$5.78	$750.00K	1,983,573	Direct
09 Oct, 2026	Jeffrey Yu	Chief Medical Officer	Acquired P	45,126	$5.54	$250.00K	896,840	Direct
10 Sep, 2026	Jeffrey Yu	Chief Medical Officer	Acquired P	142,857	$6.30	$900.00K	892,327	Direct
30 Jul, 2026	Thomas Kosasa	Director, TenPercentOwner	Acquired P	1,449,275	$6.90	$10.00Mn	1,853,815	Direct
23 Jun, 2026	Aaron Green	Chief Executive Officer	Acquired P	36,650	$5.73	$210.11K	189,638	Direct
23 Jun, 2026	Jeffrey Yu	Chief Medical Officer	Acquired P	158,730	$6.30	$1,000.00K	878,041	Direct
16 Jun, 2026	Jeffrey Yu	Chief Medical Officer	Acquired P	172,414	$5.80	$1.00Mn	862,168	Direct
12 Jun, 2026	Aaron Green	Chief Executive Officer	Acquired P	36,920	$5.58	$206.05K	184,102	Direct
15 Jun, 2026	Aaron Green	Chief Executive Officer	Acquired P	18,702	$5.40	$100.92K	185,973	Direct
12 Jun, 2026	Thomas Kosasa	Director, TenPercentOwner	Acquired P	158,730	$6.30	$1,000.00K	1,708,887	Direct
18 May, 2026	Thomas Kosasa	Director, TenPercentOwner	Acquired P	268,817	$9.30	$2.50Mn	1,693,014	Direct
01 Apr, 2026	Jeffrey Yu	Chief Medical Officer	Acquired P	903,614	$8.30	$7.50Mn	822,984	Direct
01 Apr, 2026	Jeffrey Yu	Chief Medical Officer	Acquired A	219,429	$8.30	$1.82Mn	844,927	Direct
22 Oct, 2025	Aaron Green	Chief Executive Officer	Disposed S	64,767	$22.35	$1.45Mn	186,566	Direct
18 Nov, 2025	Aaron Green	Chief Executive Officer	Disposed S	61,555	$12.01	$739.03K	180,410	Direct
26 Nov, 2025	Kenneth Alleyne	Director	Acquired A	38,219	$0.00	$0	3,822	Direct
11 Aug, 2023	Creek Asset Management, L.P. Owl	TenPercentOwner	Disposed J	465,000	$111.30	$51.75Mn	0	Indirect
12 Jan, 2023	Capital Management Llc Shaolin	TenPercentOwner	Disposed S	100,000	$104.80	$10.48Mn	40,000	Direct