$PHIO

$0.92 +$0.03 (2.87%) Close

$PHIO Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 11.6M shares outstanding

Who owns PHIO?

By type of holder

Institutions 5.6% Insiders 0.0% Everyone else 94.4%

Concentration Top 10 holders own 4.9%

Geode Capital Management, LLC 1.0% · Jane Street Group, LLC 1.0%

Institutional ownership

5.6%

-0.2 pts vs last qtr

Institutional holders

0 vs last qtr

Net shares bought

−21.4K

by institutions in Q2 2026

New / sold out

4 / 4

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Nomura Asset Management International Inc. NEW +50.0K
Citadel Advisors LLC NEW +47.2K

Biggest sellers in Q2 2026

Geode Capital Management, LLC −32.7K
Scientech Research LLC SOLD OUT −30.0K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Phio Pharmaceuticals Corp in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2023–FY2024

+240.1%

+240.15% a year

Each share's claim on the business

−70.6%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $450K

over 2 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years47% Under 1 year53%

Quarterly turnover

22.7%

of institutional shares changed hands

Top 10 managers, median time held

2 quarters

Super Investors

Investment managers reporting PHIO on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
GC Geode Capital Management, LLC	114.6K	0.99%	−32.7K (−22.2%)	2025	0.0%
Shares held by quarter Peak holding147.3K (Q1'26) Change over 8 quarters+114.6K Share of the company0.990% Geode Capital Management, LLC's full portfolio →
JS Jane Street Group, LLC	117.8K	1.01%	−1.4K (−1.2%)	Q1 '26	0.0%
Shares held by quarter Peak holding119.2K (Q1'26) Change over 8 quarters+117.8K Share of the company1.010% Jane Street Group, LLC's full portfolio →

Geode Capital Management, LLC

114.6K

% of company

0.99%

Change vs last qtr

−32.7K (−22.2%)

Held since

2025

Jane Street Group, LLC

117.8K

% of company

1.01%

Change vs last qtr

−1.4K (−1.2%)

Held since

Q1 '26

26 more super investors behind a free account

See every manager holding Phio Pharmaceuticals Corp, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting PHIO on Form N-PORT; together they hold 2.4% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FE Fidelity Extended Market Index Fund Fidelity Concord Street Trust	$115K	105.8K	0.91%	0.00%	August 31, 2026
VE Vanguard Extended Market Index Fund Vanguard Index Funds	$96.6K	94.3K	0.81%	0.00%	June 30, 2026

Fidelity Extended Market Index Fund

Fidelity Concord Street Trust

Position value

$115K

% of company

0.91%

% of the fund

0.00%

As of

August 31, 2026

Vanguard Extended Market Index Fund

Vanguard Index Funds

Position value

$96.6K

% of company

0.81%

% of the fund

0.00%

As of

June 30, 2026

4 more funds behind a free account

See every fund holding Phio Pharmaceuticals Corp and how much of the fund the position is.

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