PLx Pharma Inc.

PLXPNASDAQHealthcare

$0.09

+$0.00(+0.00%)

Market Cap$2534980

P/E Ratio—

52W High$3.41

52W Low$0.009

Avg Volume4.9M

Open$0.10

Beta3.92

Insider Trades Ownership Employees

PLx Pharma Inc. (PLXP) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · PLXP · as of Jun 9, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

∞

Buy/Sell (by trades)

Overall sentiment

BULLISH

↑ Buy 100%Active transactions only · RSU vesting excluded0% Sell ↓

PLx Pharma Inc. insiders have been net buyers of shares over the past 12 Months, which may signal confidence in the company's outlook.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 9, 2026

PLXP insider buying and selling by quarter

PLXP insider selling · PLXP insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

1.5M726K0

2020 Q1

2020 Q2

2020 Q3

2020 Q4

2021 Q1

2021 Q2

2021 Q3

2022 Q1

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 9, 2026

Recent insider transactions

PLXP executive sell shares · PLXP board member insider trading · PLXP insider trading SEC filing

Showing 36 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Mar 15, 2022	Giordano Natasha CEO	Purchase	4,100	$3.65	$15K	5,186	Form 4
Mar 15, 2022	O'Connor Rita M CFO	Purchase	3,700	$3.65	$14K	26,670	Form 4
Mar 15, 2022	O'Connor Rita M CFO	Purchase	10,000	$3.66	$37K	22,970	Form 4
Jun 14, 2021	Valentino Michael J Executive Chairman · Director	Purchase	120	$12.51	$2K	494,690	Form 4
Jun 14, 2021	Valentino Michael J Executive Chairman · Director	Purchase	5,080	$12.50	$64K	494,570	Form 4
Jun 14, 2021	Valentino Michael J Executive Chairman · Director	Purchase	100	$12.48	$1K	489,490	Form 4
Jun 14, 2021	Valentino Michael J Executive Chairman · Director	Purchase	300	$12.47	$4K	489,390	Form 4
Jun 14, 2021	Valentino Michael J Executive Chairman · Director	Purchase	600	$12.47	$7K	489,090	Form 4
Jun 14, 2021	Valentino Michael J Executive Chairman · Director	Purchase	100	$12.46	$1K	488,490	Form 4
Jun 14, 2021	Valentino Michael J Executive Chairman · Director	Purchase	100	$12.45	$1K	488,390	Form 4
Jun 14, 2021	Valentino Michael J Executive Chairman · Director	Purchase	400	$12.45	$5K	488,290	Form 4
Jun 14, 2021	Valentino Michael J Executive Chairman · Director	Purchase	1,200	$12.44	$15K	487,890	Form 4
Mar 5, 2021	Valentino Michael J Executive Chairman · Director	Purchase	25,000	$8.00	$200K	486,690	Form 4
Dec 14, 2020	HADDEN JOHN Director	Purchase	400	$5.49	$2K	3,690	Form 4
Dec 14, 2020	HADDEN JOHN Director	Purchase	600	$5.42	$3K	3,290	Form 4
Nov 25, 2020	HADDEN JOHN Director	Purchase	500	$5.48	$3K	2,690	Form 4
Nov 18, 2020	Valentino Michael J Executive Chairman · Director	Purchase	264,900	$3.79	$1.00M⚡	461,690	Form 4
Sep 2, 2020	O'Connor Rita M CFO	Purchase	2,120	$3.83	$8K	12,970	Form 4
Sep 1, 2020	O'Connor Rita M CFO	Purchase	4,500	$3.74	$17K	10,850	Form 4
Aug 21, 2020	O'Connor Rita M CFO	Purchase	4,050	$3.97	$16K	6,350	Form 4
Aug 20, 2020	O'Connor Rita M CFO	Purchase	2,300	$3.77	$9K	2,300	Form 4
May 20, 2019	Valentino Michael J Executive Chairman · Director	Purchase	44,404	$5.60	$249K	196,790	Form 4
Aug 10, 2017	Valentino Michael J Executive Chairman · Director	Award	30,000	—	—	152,386	Form 4
Jun 14, 2017	JORDEN DAVID EMERSON Acting Chief Financial Officer	Purchase	32,727	$6.88	$225K	151,913	Form 4
Jun 14, 2017	MOSSMAN GARY L COO	Purchase	7,273	$6.88	$50K	78,255	Form 4

Giordano Natasha

CEO

Purchase

Date

Mar 15

4,100

Price

$3.65

Value

$15K

View Form 4 on SEC.gov

O'Connor Rita M

CFO

Purchase

Date

Mar 15

3,700

Price

$3.65

Value

$14K

View Form 4 on SEC.gov

O'Connor Rita M

CFO

Purchase

Date

Mar 15

10,000

Price

$3.66

Value

$37K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

Jun 14

120

Price

$12.51

Value

$2K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

Jun 14

5,080

Price

$12.50

Value

$64K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

Jun 14

100

Price

$12.48

Value

$1K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

Jun 14

300

Price

$12.47

Value

$4K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

Jun 14

600

Price

$12.47

Value

$7K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

Jun 14

100

Price

$12.46

Value

$1K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

Jun 14

100

Price

$12.45

Value

$1K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

Jun 14

400

Price

$12.45

Value

$5K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

Jun 14

1,200

Price

$12.44

Value

$15K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

Mar 5

25,000

Price

$8.00

Value

$200K

View Form 4 on SEC.gov

HADDEN JOHN

Director

Purchase

Date

Dec 14

400

Price

$5.49

Value

$2K

View Form 4 on SEC.gov

HADDEN JOHN

Director

Purchase

Date

Dec 14

600

Price

$5.42

Value

$3K

View Form 4 on SEC.gov

HADDEN JOHN

Director

Purchase

Date

Nov 25

500

Price

$5.48

Value

$3K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

Nov 18

264,900

Price

$3.79

Value

$1.00M ⚡

View Form 4 on SEC.gov

O'Connor Rita M

CFO

Purchase

Date

Sep 2

2,120

Price

$3.83

Value

$8K

View Form 4 on SEC.gov

O'Connor Rita M

CFO

Purchase

Date

Sep 1

4,500

Price

$3.74

Value

$17K

View Form 4 on SEC.gov

O'Connor Rita M

CFO

Purchase

Date

Aug 21

4,050

Price

$3.97

Value

$16K

View Form 4 on SEC.gov

O'Connor Rita M

CFO

Purchase

Date

Aug 20

2,300

Price

$3.77

Value

$9K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Purchase

Date

May 20

44,404

Price

$5.60

Value

$249K

View Form 4 on SEC.gov

Valentino Michael J

Executive Chairman · Director

Award

Date

Aug 10

30,000

Price

—

Value

—

View Form 4 on SEC.gov

JORDEN DAVID EMERSON

Acting Chief Financial Officer

Purchase

Date

Jun 14

32,727

Price

$6.88

Value

$225K

View Form 4 on SEC.gov

MOSSMAN GARY L

COO

Purchase

Date

Jun 14

7,273

Price

$6.88

Value

$50K

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

1 / 2

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About PLXP insider trading

PLXP insider trades

PLx Pharma Inc. (PLXP) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including PLXP. Over the past 12 months, 0 insiders have filed transactions with the SEC. PLXP insiders have been primarily buying, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For PLx Pharma Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

PLXP insider trading · 5 questions

The insiders of PLx Pharma Inc. (PLXP) include executives and directors such as PLXP, among others. Over the past 12 months, 0 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

PLXP board member insider tradingwho are PLXP insidersPLXP insider rosterPLx Pharma Inc. executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026