InsiderSource

Liu Dong

10% Owner, Director, Chief Financial Officer · SEC CIK 1813729
Insider at MCAG Mountain Crest Acquisition Corp. V MCADU Mountain Crest Acquisition Corp II MCACU Mountain Crest Acquisition Corp.
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Buy track record

How this insider's open-market purchases have performed
This insider has no open-market purchases in the records we parsed, so there's no buy track record to score. Their full filing history is below.
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Open-market buys
$4.69M
4 trades
Open-market sells
$6.25M
3 trades
Net flow
−$1.56M
Net selling
Total filings
11
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
MCADU
Mountain Crest Acquisition Corp II
Sell Liu Dong · Director, Chief Financial Officer, 10% Owner · Open-market sale · filed Apr 9, 2021 ΔOwn −13%

Liu Dong sold $1.8M of MCADU, trimming their stake 13%.

−$1.8M
200,000 sh @ $9
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MCADU
Mountain Crest Acquisition Corp II
Buy Liu Dong · Director, Chief Financial Officer, 10% Owner · Open-market purchase · filed Jan 19, 2021 ΔOwn +0.5%

Liu Dong, MCADU's CFO, spent $75K of their own money on 7,500 shares at $10.

+$75K
7,500 sh @ $10
MCADU
Mountain Crest Acquisition Corp II
Buy Liu Dong · Director, Chief Financial Officer, 10% Owner · Open-market purchase · filed Jan 14, 2021 ΔOwn +9.4%

Liu Dong, MCADU's CFO, spent $1.35M of their own money on 135,000 shares at $10, growing their stake 9%.

+$1.35M
135,000 sh @ $10
MCACU
Mountain Crest Acquisition Corp.
Sell Liu Dong · Director, Chief Financial Officer, 10% Owner · Open-market sale · filed Oct 6, 2020 ΔOwn −100%

Liu Dong sold $0 of MCACU, trimming their stake 100%.

−$0
326,492 sh
MCACU
Mountain Crest Acquisition Corp.
Sell Liu Dong · Director, Chief Financial Officer, 10% Owner · Open-market sale · filed Oct 6, 2020 ΔOwn −50%

Liu Dong sold $4.45M of MCACU, trimming their stake 50%.

−$4.45M
700,000 sh @ $6
MCACU
Mountain Crest Acquisition Corp.
Buy Liu Dong · Director, Chief Financial Officer, 10% Owner · Open-market purchase · filed Oct 6, 2020 ΔOwn +10%

Liu Dong, MCACU's CFO, spent $299.9K of their own money on 29,992 shares at $10, growing their stake 10%.

+$299.9K
29,992 sh @ $10
MCACU
Mountain Crest Acquisition Corp.
Buy Liu Dong · Director, Chief Financial Officer, 10% Owner · Open-market purchase · filed Jun 9, 2020 ΔOwn +21%

Liu Dong, MCACU's CFO, spent $2.97M of their own money on 296,500 shares at $10, growing their stake 21%.

+$2.97M
296,500 sh @ $10

Frequently asked questions

How is Liu Dong's win rate calculated?

We take every open-market purchase (SEC code P) we can match to a stock price, then compare the split- and dividend-adjusted price on the purchase date to the most recent close. The win rate is the share of those buys currently trading above the purchase price. Sales and share grants are not scored.

Why are some buys not included in the score?

A purchase is excluded if we can't price it — for example if the ticker is missing from the filing, the company has been delisted, or the security isn't a common stock we can match to market data. Excluded counts are shown next to the scored total.

What do the 1M / 3M / 6M / 12M columns mean?

They show each purchase's return after a fixed holding period — one, three, six, and twelve months from the buy date — using split- and dividend-adjusted prices. This separates good entry timing from simply holding a long-running winner. A dash means that horizon hasn't elapsed yet for that trade, or the stock couldn't be priced at that date.

Does a high win rate mean I should copy this insider?

No. Past performance does not predict future results, sample sizes are often small, and an insider's edge in their own company doesn't transfer to yours. This is context, not a recommendation. InsiderSource is not investment advice.

Where does this data come from?

Trades come from Liu Dong's SEC Form 4 filings on EDGAR. Prices come from public market data and are split/dividend-adjusted. Always verify against the original filings before acting.