Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

NEUROONE MEDICAL TECHNOLOGIES Corp

CIK 0001500198NMTC· quarter ending 2026-06-30

Shares outstanding

9,105,763

as of 2026-08-11 · 10-Q cover page, filed 2026-08-13

Held by 13F filers

2,072,423

22.8% of shares outstanding

Holders

-6 vs 2026-03-31 · 6 new, 12 exited

Value

$6.3M

shares -82.4% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-13, as of 2026-08-11)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	NMTC · NASDAQ	9,105,763	2,072,423	22.8%	—	64130M308, 64130M209

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	64130M308	COM	24	2,069,612	9,105,763	22.7%	$6.3M	—	13DG	holders →
	64130M209	Stock	2	2,811	9,105,763	0.0%	$9K	—	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings. 1 further CUSIPs map to this company (mostly bonds) but no 13F filer held them this quarter.

Top holders (26 of 26 · 64130M308, 64130M209)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	Bleichroeder LP	666,666	7.32%	$2.0M	-3,333,334 (-83.3%)
2	VANGUARD CAPITAL MANAGEMENT LLC	352,774	3.87%	$1.1M	-1,044,555 (-74.8%)
3	BARD ASSOCIATES INC	305,428	3.35%	$929K	-1,535,070 (-83.4%)
4	PERKINS CAPITAL MANAGEMENT INC	244,656	2.69%	$744K	-1,228,344 (-83.4%)
5	GEODE CAPITAL MANAGEMENT, LLC	93,555	1.03%	$284K	-522,051 (-84.8%)
6	Sio Capital Management, LLC	82,767	0.91%	$252K	-413,847 (-83.3%)
7	RENAISSANCE TECHNOLOGIES LLC	70,861	0.78%	$215K	-584,585 (-89.2%)
8	Cambridge Investment Research Advisors, Inc.	56,998	0.63%	$174K	-114,002 (-66.7%)
9	VANGUARD FIDUCIARY TRUST CO	49,018	0.54%	$149K	-243,063 (-83.2%)
10	ESSEX INVESTMENT MANAGEMENT CO LLC	43,578	0.48%	$132K	-218,375 (-83.4%)
11	BlackRock, Inc.	25,121	0.28%	$76K	NEW
12	NORTHERN TRUST CORP	21,398	0.23%	$65K	-90,725 (-80.9%)
13	CITADEL ADVISORS LLC	15,032	0.17%	$46K	NEW
14	SUSQUEHANNA INTERNATIONAL GROUP, LLP	13,520	0.15%	$41K	NEW
15	Belpointe Asset Management LLC	12,500	0.14%	$38K	-62,500 (-83.3%)
16	Legato Capital Management LLC	10,273	0.11%	$31K	-51,369 (-83.3%)
17	Princeton Global Asset Management LLC	2,805	0.03%	$9K	-14,028 (-83.3%)
18	UBS Group AG	2,623	0.03%	$8K	+2,515 (+2328.7%)
19	MORGAN STANLEY	2,058	0.02%	$6K	-10,038 (-83.0%)
20	NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	361	0.00%	$1K	NEW
21	WELLS FARGO & COMPANY/MN	166	0.00%	$505	-834 (-83.4%)
22	Tower Research Capital LLC (TRC)	112	0.00%	$340	NEW
23	BARCLAYS PLC	76	0.00%	$231	NEW
24	OSAIC HOLDINGS, INC.	58	0.00%	$176	-292 (-83.4%)
25	SBI Securities Co., Ltd.	13	0.00%	$40	-7 (-35.0%)
26	Quent Capital, LLC	6	0.00%	$18	-34 (-85.0%)

Exited since 2026-03-31 (12 filers; largest 12 shown)

STATE STREET CORP	−59,499
XTX Topco Ltd	−43,283
J.W. COLE ADVISORS, INC.	−36,000
Focus Financial Network, Inc.	−34,722
TWO SIGMA SECURITIES, LLC	−24,764
United Community Bank	−20,000
Revisor Wealth Management LLC	−19,580
Arch Global Advisors, LLC	−17,434
LPL Financial LLC	−15,034
AQR CAPITAL MANAGEMENT LLC	−10,420
Mariner, LLC	−10,420
CITIGROUP INC	−975

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Barbara Pratt	SCHEDULE 13G/A	2026-07-14	2026-07-10	1,085,934	12.5%
Brian Pratt	SCHEDULE 13G/A	2026-07-14	2026-07-10	1,085,934	12.5%
Sio Capital Management, LLC	SCHEDULE 13G/A	2025-11-12	2025-09-30	2,360,635	4.72%
Bleichroeder Holdings LLC	SCHEDULE 13G	2025-08-14	2025-06-30	4,000,000	8.03%
Bleichroeder LP	SCHEDULE 13G	2025-08-14	2025-06-30	4,000,000	8.03%
Andew Gundlach	SCHEDULE 13G	2025-08-14	2025-06-30	4,000,000	8.03%
LYTTON LAURENCE W	SCHEDULE 13G/A	2025-05-15	2025-03-31	1,295,288	2.6%
AWM Investment Company, Inc.	SCHEDULE 13G/A	2025-05-09	2025-03-31	2,354,167	4.8%
JAMES E. BESSER	SCHEDULE 13G/A	2025-02-14	2024-12-31	1,583,332	4.9%
MANCHESTER MANAGEMENT COMPANY, LLC	SCHEDULE 13G/A	2025-02-14	2024-12-31	1,499,999	4.6%
MANCHESTER MANAGEMENT PR, LLC	SCHEDULE 13G/A	2025-02-14	2024-12-31	1,499,999	4.6%
MORGAN C. FRANK	SCHEDULE 13G/A	2025-02-14	2024-12-31	1,416,666	4.4%
MANCHESTER EXPLORER, L.P.	SCHEDULE 13G/A	2025-02-14	2024-12-31	1,333,333	4.1%
MERCHANT ADVENTURE FUND, L.P.	SCHEDULE 13G/A	2025-02-04	2024-12-31	4,200,000	13.6%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.