Dong-a ST Co., Ltd.

Dong-a ST Co., Ltd. is 10% Owner at NeuroBo Pharmaceuticals, Inc. (NRBO). They have made 4 open-market trades across 2 companies since 2024, most recently 2025-05-08.

CIK 0001799260

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3 open-market purchases totalling $34.6M since 2024, against 1 sale. Too few scored purchases to measure a record yet.

Current Position

Ticker	Shares	Value
MTVA	9,995,679	$12.7M
NRBO	5,347,792	$12.6M
Total		$25.3M

Shares reported on the most recent Form 4, priced at the 2025-05-20 close.

Grade by Ticker

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Buy Track Record

Filings3

Only 3 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

Filings1

Only 1 decision-sell filing — 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

POpen-Market Purchase

$34.6M

3 filings

SOpen-Market Sale

$2K

1 filings

Companies

Trade History

4 total

MTVABUY

$6.6M

2025-05-087d: -11.5%

Buying the DipMajor Holdings Increase (>50%)First-Time Buyer10% Owner PurchaseOpportunistic BuyDeep Dip Buy

•Increased holdings by 87%
•Buying near 52-week low (+4% from bottom)
+1 more

NRBOSELL

$2K

2024-09-127d: -17.7%

Buy-to-Sell ReversalOpportunistic Sell

NRBOBUY

$8.0M

2024-06-237d: -5.0%

Major Holdings Increase (>50%)10% Owner PurchaseOpportunistic Buy

NRBOBUY

$20.0M

2024-06-237d: -3.6%

Major Holdings Increase (>50%)10% Owner PurchaseOpportunistic Buy

•Increased holdings by 91%
•Stock up +23% in previous 6 months

Ticker	Type	Traded	Filed	Price	Value	7d Stock	30d Stock	90d Stock
MTVA	BUY	2025-05-08	2025-05-20	$0.71	$6.6M	-11.5%	-8.6%	-12.1%
NRBO	SELL	2024-09-12	2024-09-20	$3.75	$2K	-17.7%	-10.7%	N/A
NRBO	BUY	2024-06-23	2024-06-25	$3.13	$8.0M	-5.0%	-15.6%	-34.2%
NRBO	BUY	2024-06-23	2024-07-10	$3.93	$20.0M	-3.6%	-20.0%	-41.1%

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