SEC ownership of FONAR CORP

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000355019.

Comparable stake leader

Hilary Shane

Disclosed value leader

Hilary Shane

Comparable rows

43/45

Latest evidence

02 Jun 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 2 signals
Latest 13D/G holder
Hilary Shane
Latest parsed ownership date
02 Jun 2026
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0000355019
Issuer location
Melville, NY

Ownership snapshot

Top shareholders of FONAR CORP (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Hilary Shane
Disclosed value leader
Hilary Shane
Comparable rows
43/45
Latest evidence
02 Jun 2026
3/4/5 13D/G 13F Lead comparable stake: 12% 2 rows are not safely comparable across share classes. 13D/G row: Hilary Shane Showing 1-8 of 45 holder rows.

Quick read

Hilary Shane leads the comparable SEC ownership view at 12%.

43 of 45 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Hilary Shane's linked filing trail.
Comparable ownership Top 5
Hilary Shane 12%
MONEY CONCEPTS CAPITAL CORP 7.5%
VANGUARD CAPITAL MANAGEMENT LLC 6%
DIMENSIONAL FUND ADVISORS LP 5.1%
KAYNE ANDERSON RUDNICK INVESTMENT... 4.1%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 45 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Hilary Shane
3/4/5 13D/G
10%+ Owner · Hilary L. Shane
12%
from 13D/G
$41,894,650
2,249,551 shares
+$10,562,257 02 Jun 2026
MONEY CONCEPTS CAPITAL CORP
13F 13D/G
Company
7.5%
from 13D/G
$9,233,266
497,482 shares
31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC
13F 13D/G
Company · Vanguard Capital Management
6%
from 13D/G
$6,185,473
333,269 shares
31 Mar 2026
DIMENSIONAL FUND ADVISORS LP
13F 13D/G
Company
5.1%
from 13D/G
$5,855,158
315,471 shares
31 Mar 2026
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC
13D/G
4.1%
$4,662,542
251,350 shares
-$5,429,325 31 Dec 2025
RENAISSANCE TECHNOLOGIES LLC
13D/G
0.02%
1,116 shares
$0 31 Mar 2026
FNY Investment Advisers, LLC
13F
Company
13F
4.1%
$4,692,000
252,806 shares
31 Mar 2026
Groupe la Francaise
13F
Individual
13F
1.9%
$2,204,928
118,800 shares
31 Mar 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to buying over the last 12 months. Net value: +$10,562,257.

Buys
$10,562,257
Insiders: 1
Sells
$0
Insiders: 0
Net
+$10,562,257
Shares: +554,089
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 554,089 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 554,089 0 $10,562,257 $0 +$10,562,257
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-3 of 3 reporting-owner rows connected to FONAR CORP. Open a relationship link for the CIK-to-CIK filing trail.

Rows
3
Largest Forms 3/4/5 holder
Hilary Shane
Net 12M change
+$10,562,257
Latest report
02 Jun 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Hilary Shane 10%+ Owner $41,894,650 +$10,562,257 +34% Mixed 02 Jun 2026
Luciano B. Bonanni Exec VP, COO & PFO $768,222 Filing P/S 29 Sep 2022
Timothy Raymond Damadian CEO, President & Treasurer, Director $604,632 Filing P/S 29 Sep 2022

Recent insider transactions for FONAR CORP

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Hilary Shane FONR Common Stock Purchase 70.5% $4,113,298 $19.10 215,336 520,609 02 Jun 2026 See footnote
Hilary Shane FONR Common Stock Purchase 14.8% $798,443 $19.05 41,913 324,273 29 May 2026 See footnote
Hilary Shane FONR Common Stock Purchase 228.4% $4,294,365 $19.05 225,426 324,118 28 May 2026 See footnote
Hilary Shane FONR Common Stock Purchase 261.8% $1,356,152 $18.99 71,414 98,692 27 May 2026 See footnote
* marks a reported price that did not pass the local price check.
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