Brian Jay Stark

Brian Jay Stark is 10% at MULTI FINELINE ELECTRONIX INC (MFLX). They have made 77 open-market trades across 12 companies since 2006, most recently 2025-12-31.

CIK 0001619087

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22 open-market purchases totalling $29.6M since 2006, against 55 sales. Too few scored purchases to measure a record yet.

Current Position

Ticker	Shares	Value
CLST	3,262,254	$55.1M
STDY	1,166,428	$5.5M
MCS	46,815	$1.3M
ILE	6,812,239	—
ILEIQ	4,427,489	—
LGBT	539,206	—
MFLX	2,524,314	—
NASM	1,891,533	—
SMBL	2,268,405	—
APNS	22,515,067	—
UPI	1,417,762	—
APSN	20,407,786	—
CURN	4,714,889	—
Total		$61.9M

Shares reported on the most recent Form 4, priced at the 2026-01-05 close. 10 holdings could not be priced and are excluded from the total.

Grade by Ticker

CSTDY

1 trade

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Buy Track Record

Filings22

Only 2 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.

Sell Track Record

Filings55

Only 2 decision-sell filings — too few to score

Decision sells only — a first sale after buying the stock, or a sale by a fund or 10% owner. Ordinary sales by officers and directors show no relationship to what the stock does next, so they are counted but not scored.

Volume by Type

SOpen-Market Sale

$55.5M

55 filings

POpen-Market Purchase

$29.6M

22 filings

AAward/Grant

$2.8M

30 filings

Companies

Trade History

77 total

STDYSELL

$20.9M

2018-08-30N/A

Unusually Large TradeTop TradeOpportunistic Sell

STDYBUY

$3.0M

2017-04-257d: -40.0%

Large Holdings Increase10% Owner PurchaseOpportunistic BuyTop TradeMomentum Buy

STDYBUY

$4.1M

2016-08-047d: -2.1%

First-Time BuyerMajor Holdings Increase (>50%)10% Owner PurchaseOpportunistic BuyTop Trade

•Increased holdings by 59%
•3 other insiders also purchased in last 30 days
+1 more

ILEIQSELL

$13K

2009-07-06N/A

Ticker	Type	Traded	Filed	Price	Value	7d Stock	30d Stock	90d Stock
STDY	SELL	2018-08-30	2018-09-04	$4.46	$20.9M	N/A	N/A	N/A
STDY	BUY	2017-04-25	2017-08-22	$5.90	$3.0M	-40.0%	-46.4%	-52.8%
STDY	BUY	2016-08-04	2016-08-08	$3.13	$4.1M	-2.1%	+9.8%	+23.7%
ILEIQ	SELL	2009-07-06	2009-07-08	$0.01	$13K	N/A	N/A	N/A
ILEIQ	SELL	2009-06-26	2009-06-30	$0.01	$11K	N/A	N/A	N/A
APNS	SELL	2009-06-08	2009-06-10	$0.01	$11K	N/A	N/A	N/A
APNS	SELL	2009-05-19	2009-05-21	$0.01	$5K	N/A	N/A	N/A
APNS	SELL	2009-05-13	2009-05-15	$0.02	$6K	N/A	N/A	N/A
APNS	SELL	2009-05-06	2009-05-08	$0.02	$4K	N/A	N/A	N/A
APNS	SELL	2009-04-27	2009-04-29	$0.02	$20	N/A	N/A	N/A
APNS	SELL	2009-04-17	2009-04-21	$0.02	$5K	N/A	N/A	N/A
NASM	SELL	2009-04-03	2009-04-07	$0.02	$6K	N/A	N/A	N/A
APNS	SELL	2009-04-03	2009-04-07	$0.02	$3K	N/A	N/A	N/A
ILE	SELL	2009-04-02	2009-04-06	$0.15	$10K	N/A	N/A	N/A
APNS	SELL	2009-03-31	2009-04-02	$0.02	$490	N/A	N/A	N/A
NASM	SELL	2009-03-31	2009-04-02	$0.03	$5K	N/A	N/A	N/A
ILE	SELL	2009-03-27	2009-03-31	$0.17	$5K	N/A	N/A	N/A
ILE	SELL	2009-03-26	2009-03-30	$0.15	$9K	N/A	N/A	N/A
APNS	SELL	2009-03-26	2009-03-30	$0.03	$1K	N/A	N/A	N/A
NASM	SELL	2009-03-23	2009-03-25	$0.04	$3K	N/A	N/A	N/A
APNS	SELL	2009-03-20	2009-03-24	$0.02	$2K	N/A	N/A	N/A
NASM	SELL	2009-03-18	2009-03-20	$0.03	$8K	N/A	N/A	N/A
APNS	SELL	2009-03-13	2009-03-17	$0.02	$11K	N/A	N/A	N/A
APNS	SELL	2009-03-12	2009-03-16	$0.03	$15K	N/A	N/A	N/A
ILE	SELL	2009-03-09	2009-03-11	$0.19	$3K	N/A	N/A	N/A