Alexander K. Arrow

Alexander K. Arrow is Director at BIOLASE, INC (BLTI). They have made 15 open-market trades across 3 companies since 2010, most recently 2023-10-12.

15 open-market purchases totalling $259K since 2010, never a sale. Too few scored purchases to measure a record yet.

Current Position

Ticker	Shares	Value
PTIX	45,815	$33K
BIOL	110,387	$14K
PTIXW	33,100	$2K
ATRN	358,260	—
BLTI	92,575	—
Total		$50K

Shares reported on the most recent Form 4, priced at the 2023-10-13 close. 2 holdings could not be priced and are excluded from the total.

Grade by Ticker

Get alerted the next time Alexander K. Arrow files

Alerts when they file, saved screens, and the strategy books. 7-day free trial, no credit card required.

Follow Alexander K. Arrow

Buy Track Record

Filings15

Only 4 discretionary filings — too few to score

Discretionary filings only. 10b5-1 plan trades, tax withholding and option exercises are excluded, and each column is one row per filing rather than per execution lot.

Volume by Type

POpen-Market Purchase

$259K

15 filings

MOption Exercise

$16K

2 filings

Companies

Trade History

15 total

Contrarian BuyOpportunistic BuyLargest Purchase Ever

PTIXBUY

$5K

2021-04-297d: +10.9%

First-Time BuyerMinimal Holdings IncreaseOpportunistic Buy

BIOLBUY

$15K

2014-07-227d: +1.3%

First-Time BuyerTop TradeOpportunistic Buy

Large Holdings IncreaseOpportunistic Buy

BLTIBUY

$57K

2011-08-15N/A

Unusually Large TradeLarge Holdings IncreaseOpportunistic Buy

BLTIBUY

$2K

2011-05-26N/A

Top TradeOpportunistic Buy

BLTIBUY

$7K

2011-05-20N/A

Top TradeOpportunistic Buy

BLTIBUY

$26K

2011-05-11N/A

Unusually Large TradeTop TradeOpportunistic Buy

BLTIBUY

$3K

2010-11-16N/A

First-Time BuyerOpportunistic Buy

Ticker	Type	Traded	Filed	Price	Value	7d Stock	30d Stock	90d Stock
PTIX	BUY	2023-10-12	2023-10-13	$0.81	$6K	-8.6%	-5.9%	-1.2%
PTIX	BUY	2022-05-17	2022-05-18	$0.71	$22K	-4.7%	-3.5%	-13.7%
PTIX	BUY	2021-04-29	2021-05-03	$2.29	$5K	+10.9%	+9.0%	+5.7%
BIOL	BUY	2014-07-22	2014-07-23	$1.92	$15K	+1.3%	+7.5%	+7.5%
BLTI	BUY	2012-08-14	2012-08-15	$1.69	$17K	N/A	N/A	N/A
BLTI	BUY	2012-08-13	2012-08-15	$1.78	$66K	N/A	N/A	N/A
BLTI	BUY	2012-06-01	2012-06-05	$2.35	$11K	N/A	N/A	N/A
BLTI	BUY	2012-05-15	2012-06-05	$2.41	$5K	N/A	N/A	N/A
BLTI	BUY	2011-08-18	2011-08-22	$2.84	$14K	N/A	N/A	N/A
BLTI	BUY	2011-08-15	2011-08-17	$3.02	$57K	N/A	N/A	N/A
BLTI	BUY	2011-05-26	2011-05-27	$4.99	$2K	N/A	N/A	N/A
BLTI	BUY	2011-05-20	2011-05-23	$4.96	$7K	N/A	N/A	N/A
BLTI	BUY	2011-05-11	2011-05-13	$4.64	$26K	N/A	N/A	N/A
BLTI	BUY	2010-11-16	2010-11-18	$1.58	$3K	N/A	N/A	N/A
BLTI	BUY	2010-11-10	2010-11-12	$1.88	$2K	N/A	N/A	N/A

Related Insiders

Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.