Phio Pharmaceuticals Corp. Insider Trading

PHIO

Cluster buy

3 insiders bought 31K of their own stock in 15 days.

Open-market purchases by executives and directors between Sep 15 and Sep 29. Buying is rarer than selling and says more, but it is one input, not a verdict.

Net open-market

+91K

11 buys · 0 sales

Under a 10b5-1 plan

—

no sales

Insiders who bought / sold

3 / 0

executives and directors

Last open-market buy

Sep 2026

Sep 29, 2026

Get an email when PHIO'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 28 – 29	Ronald Todd Plott Director	Bought 2 parts	10,000	$1.04 average	10K	31%	Form 4
Sep 24	Patricia A Bradford Director	Bought	6,500	$1.01	7K	11%	Form 4
Sep 22	Robert J Bitterman Chairman, Pres. & CEO	Bought	2,000	$1.03	2K	0.6%	Form 4
Sep 15	Patricia A Bradford Director	Bought	12,000	$1.03	12K	26%	Form 4
Aug 19	Ronald Todd Plott Director	Bought	15,000	$1.14	17K	New	Form 4
Aug 18	Robert J Bitterman Chairman, Pres. & CEO	Bought	10,000	$1.06	11K	2.4%	Form 4
Jun 26	Robert J Bitterman Chairman, Pres. & CEO	Bought	10,000	$0.99	10K	2.4%	Form 4
Dec 31, 2025	Robert J Bitterman Chairman, Pres. & CEO	Bought	5,000	$1.03	5K	1.7%	Form 4
Dec 23, 2025	Robert J Bitterman Chairman, Pres. & CEO	Bought	5,000	$1.02	5K	1.8%	Form 4
Nov 21, 2025	Robert J Bitterman Chairman, Pres. & CEO	Bought	5,000	$1.14	6K	1.8%	Form 4
Nov 18, 2025	Robert J Bitterman Chairman, Pres. & CEO	Bought	5,000	$1.27	6K	1.8%	Form 4
Jun 10, 2025	Robert J Bitterman Chairman, Pres & CEO	Bought	2,000	$2.42	5K	8.0%	Form 4
Jun 10, 2025	Robert L Ferrara Director	Bought	2,500	$2.42	6K	19%	Form 4
Jun 9, 2025	Robert J Bitterman Chairman, Pres & CEO	Bought	1,500	$2.75	4K	6.3%	Form 4
May 21, 2025 – May 22, 2025	Robert J Bitterman Chairman, Pres & CEO	Bought 2 parts	4,200	$1.77 average	7K	22%	Form 4
May 20, 2025	Robert L Ferrara Director	Bought	2,500	$1.82	5K	23%	Form 4

Sep 28 – 29
Ronald Todd Plott
Director · bought 10,000 at avg $1.04
10K
31% of stake
Sep 24
Patricia A Bradford
Director · bought 6,500 at $1.01
7K
11% of stake
Sep 22
Robert J Bitterman
Chairman, Pres. & CEO · bought 2,000 at $1.03
2K
0.6% of stake
Sep 15
Patricia A Bradford
Director · bought 12,000 at $1.03
12K
26% of stake
Aug 19
Ronald Todd Plott
Director · bought 15,000 at $1.14
17K
New position
Aug 18
Robert J Bitterman
Chairman, Pres. & CEO · bought 10,000 at $1.06
11K
2.4% of stake
Jun 26
Robert J Bitterman
Chairman, Pres. & CEO · bought 10,000 at $0.99
10K
2.4% of stake
Dec 31, 2025
Robert J Bitterman
Chairman, Pres. & CEO · bought 5,000 at $1.03
5K
1.7% of stake
Dec 23, 2025
Robert J Bitterman
Chairman, Pres. & CEO · bought 5,000 at $1.02
5K
1.8% of stake
Nov 21, 2025
Robert J Bitterman
Chairman, Pres. & CEO · bought 5,000 at $1.14
6K
1.8% of stake
Nov 18, 2025
Robert J Bitterman
Chairman, Pres. & CEO · bought 5,000 at $1.27
6K
1.8% of stake
Jun 10, 2025
Robert J Bitterman
Chairman, Pres & CEO · bought 2,000 at $2.42
5K
8.0% of stake
Jun 10, 2025
Robert L Ferrara
Director · bought 2,500 at $2.42
6K
19% of stake
Jun 9, 2025
Robert J Bitterman
Chairman, Pres & CEO · bought 1,500 at $2.75
4K
6.3% of stake
May 21, 2025 – May 22, 2025
Robert J Bitterman
Chairman, Pres & CEO · bought 4,200 at avg $1.77
7K
22% of stake
May 20, 2025
Robert L Ferrara
Director · bought 2,500 at $1.82
5K
23% 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 PHIO, 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.

Peers

Pharmaceutical Preparations · Pick stocks to compare with PHIO

CompareIntrinsic value

JUNSJupiter Neurosciences Inc.

$2.46+1.23%10

SKVISkinvisible Inc.

$0.16+0.00%0

BDPTBioadaptives Inc.

$0.00-5.88%25

LYELLyell Immunopharma, Inc.

$15.43+43.27%10

GTBPGT Biopharma, Inc.

$4.84-8.16%20

ADTXAditxt Inc.

$0.00+33.33%20

IBOImpact Biomedical Inc.

$4.10+1.99%20

GNLXGenelux Corp.

$1.96+2.08%10

Spot a number that looks wrong? Check it in PHIO'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.

2 of 2 free stocks used today

Keep analysing PHIO

Create a free account and get 14 days of Premium: every stock and every tool.

Unlimited stocksQuality, fair value and dividends for 10,000+ stocks
Stock screenerFilter on quality, valuation and dividend safety
Portfolio trackerReal return, dividend calendar and portfolio quality
Editable DCFChange the assumptions and watch fair value move
Compare side by sideUp to 10 stocks in one table
Unlimited alertsPrice, P/E, Quality Score and yield

No card. Moves to Free after, unless you upgrade.

Already have an account?

Or come back tomorrow. Stocks on your watchlist are always free to view.