BIOLASE, Inc.

BIOLNASDAQHealthcare

$0.02

+$0.00(+27.39%)

Market Cap$731942

P/E Ratio—

52W High$1.94

52W Low$0.0157

Avg Volume213K

Open$0.05

Beta0.68

Overview

BIOLASE, Inc. (BIOL) 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 · BIOL · as of Jun 9, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

0.00

Buy/Sell (by trades)

Overall sentiment

BEARISH

↑ Buy 0%Active transactions only · RSU vesting excluded100% Sell ↓

BIOLASE, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.

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

As of Jun 9, 2026

BIOL insider buying and selling by quarter

BIOL insider selling · BIOL insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

5.9M3.0M0

2021 Q1

2021 Q2

2021 Q3

2021 Q4

2022 Q1

2022 Q2

2022 Q3

2022 Q4

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

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

Showing 23 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Feb 11, 2020	Schuler Education Foundation 10 percent owner	Purchase	1,307,931	$0.61	$798K	10,936,444	Form 4
Jun 8, 2020	Schuler Education Foundation 10 percent owner	Sale	1,847,649	$0.55	$1.02M⚡	9,088,795	Form 4
Jul 28, 2020	Schuler Education Foundation 10 percent owner	Other	3,745,000	$0.40	$1.50M⚡	8,962,400	Form 4
Nov 24, 2020	Schuler Education Foundation 10 percent owner	Sale	71,100	$0.30	$21K	8,891,300	Form 4
Nov 25, 2020	Schuler Education Foundation 10 percent owner	Sale	203,057	$0.29	$59K	8,688,243	Form 4
Nov 30, 2020	Schuler Education Foundation 10 percent owner	Sale	1,115,000	$0.30	$335K	7,573,243	Form 4
Jun 9, 2020	Schuler Education Foundation 10 percent owner	Sale	2,137,559	$0.54	$1.15M⚡	6,951,236	Form 4
Dec 4, 2020	Schuler Education Foundation 10 percent owner	Sale	1,200,000	$0.30	$360K	6,373,243	Form 4
Dec 16, 2020	Schuler Education Foundation 10 percent owner	Sale	90,575	$0.28	$25K	6,282,668	Form 4
Dec 17, 2020	Schuler Education Foundation 10 percent owner	Sale	572,671	$0.28	$160K	5,709,997	Form 4
Dec 18, 2020	Schuler Education Foundation 10 percent owner	Sale	187,774	$0.28	$53K	5,522,223	Form 4
Jun 10, 2020	Schuler Education Foundation 10 percent owner	Sale	1,733,836	$0.55	$954K	5,217,400	Form 4
Dec 7, 2022	LORD JONATHAN T MD Director	Sale	3,537	$0.75	$3K	59,925	Form 4
Dec 15, 2021	LORD JONATHAN T MD Director	Sale	11,038	$0.38	$4K	633,096	Form 4
Nov 30, 2021	BEAVER JOHN R President & CEO · Director	Purchase	70,000	$0.45	$32K	621,530	Form 4
Aug 20, 2021	BEAVER JOHN R President & CEO · Director	Purchase	35,000	$0.61	$21K	551,530	Form 4
May 19, 2021	BEAVER JOHN R President & CEO · Director	Purchase	40,000	$0.75	$30K	516,530	Form 4
Jun 9, 2020	FEINBERG LARRY N 10 percent owner	Sale	1,196,590	$0.55	$660K	1,276,500	Form 4
Jun 8, 2020	FEINBERG LARRY N 10 percent owner	Sale	564,738	$0.55	$313K	713,896	Form 4
Jun 9, 2020	FEINBERG LARRY N 10 percent owner	Sale	435,596	$0.55	$240K	278,300	Form 4
Jun 8, 2020	FEINBERG LARRY N 10 percent owner	Sale	358,744	$0.55	$199K	264,141	Form 4
Jun 9, 2020	FEINBERG LARRY N 10 percent owner	Sale	79,841	$0.55	$44K	184,300	Form 4
Jun 9, 2020	FEINBERG LARRY N 10 percent owner	Sale	47,885	$0.55	$26K	0	Form 4

Schuler Education Foundation

10 percent owner

Purchase

Date

Feb 11

1,307,931

Price

$0.61

Value

$798K

View Form 4 on SEC.gov

Schuler Education Foundation

10 percent owner

Sale

Date

Jun 8

1,847,649

Price

$0.55

Value

$1.02M ⚡

View Form 4 on SEC.gov

Schuler Education Foundation

10 percent owner

Other

Date

Jul 28

3,745,000

Price

$0.40

Value

$1.50M ⚡

View Form 4 on SEC.gov

Schuler Education Foundation

10 percent owner

Sale

Date

Nov 24

71,100

Price

$0.30

Value

$21K

View Form 4 on SEC.gov

Schuler Education Foundation

10 percent owner

Sale

Date

Nov 25

203,057

Price

$0.29

Value

$59K

View Form 4 on SEC.gov

Schuler Education Foundation

10 percent owner

Sale

Date

Nov 30

1,115,000

Price

$0.30

Value

$335K

View Form 4 on SEC.gov

Schuler Education Foundation

10 percent owner

Sale

Date

Jun 9

2,137,559

Price

$0.54

Value

$1.15M ⚡

View Form 4 on SEC.gov

Schuler Education Foundation

10 percent owner

Sale

Date

Dec 4

1,200,000

Price

$0.30

Value

$360K

View Form 4 on SEC.gov

Schuler Education Foundation

10 percent owner

Sale

Date

Dec 16

90,575

Price

$0.28

Value

$25K

View Form 4 on SEC.gov

Schuler Education Foundation

10 percent owner

Sale

Date

Dec 17

572,671

Price

$0.28

Value

$160K

View Form 4 on SEC.gov

Schuler Education Foundation

10 percent owner

Sale

Date

Dec 18

187,774

Price

$0.28

Value

$53K

View Form 4 on SEC.gov

Schuler Education Foundation

10 percent owner

Sale

Date

Jun 10

1,733,836

Price

$0.55

Value

$954K

View Form 4 on SEC.gov

LORD JONATHAN T MD

Director

Sale

Date

Dec 7

3,537

Price

$0.75

Value

$3K

View Form 4 on SEC.gov

LORD JONATHAN T MD

Director

Sale

Date

Dec 15

11,038

Price

$0.38

Value

$4K

View Form 4 on SEC.gov

BEAVER JOHN R

President & CEO · Director

Purchase

Date

Nov 30

70,000

Price

$0.45

Value

$32K

View Form 4 on SEC.gov

BEAVER JOHN R

President & CEO · Director

Purchase

Date

Aug 20

35,000

Price

$0.61

Value

$21K

View Form 4 on SEC.gov

BEAVER JOHN R

President & CEO · Director

Purchase

Date

May 19

40,000

Price

$0.75

Value

$30K

View Form 4 on SEC.gov

FEINBERG LARRY N

10 percent owner

Sale

Date

Jun 9

1,196,590

Price

$0.55

Value

$660K

View Form 4 on SEC.gov

FEINBERG LARRY N

10 percent owner

Sale

Date

Jun 8

564,738

Price

$0.55

Value

$313K

View Form 4 on SEC.gov

FEINBERG LARRY N

10 percent owner

Sale

Date

Jun 9

435,596

Price

$0.55

Value

$240K

View Form 4 on SEC.gov

FEINBERG LARRY N

10 percent owner

Sale

Date

Jun 8

358,744

Price

$0.55

Value

$199K

View Form 4 on SEC.gov

FEINBERG LARRY N

10 percent owner

Sale

Date

Jun 9

79,841

Price

$0.55

Value

$44K

View Form 4 on SEC.gov

FEINBERG LARRY N

10 percent owner

Sale

Date

Jun 9

47,885

Price

$0.55

Value

$26K

View Form 4 on SEC.gov

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

About BIOL insider trading

BIOL insider trades

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

For BIOLASE, 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

BIOL insider trading · 5 questions

The insiders of BIOLASE, Inc. (BIOL) include executives and directors such as BIOL, 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.

BIOL board member insider tradingwho are BIOL insidersBIOL insider rosterBIOLASE, 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