Marsh Andrew

Director, CEO, President and CEO, President & CEO · SEC CIK 1431827
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Buy track record

How this insider's open-market purchases have performed
0%
of buys now in profit
0 up · 1 down
Avg return since buy−0.8%
Median return−0.8%
Best trade−0.8%
Worst trade−0.8%
Buys scored1
Average return by holding period — separates good entry timing from riding one long winner
After 1 month −3.1% 0% won · 1 trade
After 3 months −1.5% 0% won · 1 trade
After 6 months +6.6% 100% won · 1 trade
After 12 months +6.6% 100% won · 1 trade
DateCompany90d trendBuy priceValueΔOwn1M3M6M12MTo date
Mar 14, 2019 PLUG $2 $30K +2.7% −3.1% −1.5% +6.6% +6.6% −0.8%
How this is calculated. We score only open-market purchases (SEC code P) — the buys that carry real signal. Each trade's return is measured from the adjusted closing price on the purchase date to the latest close, accounting for stock splits and dividends. The 1M/3M/6M/12M columns show the same trade's return after each fixed holding period; a dash means that horizon hasn't elapsed yet or isn't priceable. Sales are excluded because insiders sell for many routine reasons. With only 1 scored trade, treat this as a small sample, not a verdict.
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Open-market buys
$30K
1 trades
Open-market sells
$76.3M
22 trades
Net flow
−$76.27M
Net selling
Total filings
71
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
GEVO
Grant/award Marsh Andrew · Director · Grant/award · filed 4w ago ΔOwn +26%
+$0
70,000 sh
PLUG
Grant/award Marsh Andrew · Director, CEO · Grant/award · filed Dec 3, 2025 ΔOwn +1.3%
+$24.5K
12,203 sh @ $2
PLUG
Grant/award Marsh Andrew · Director, CEO · Grant/award · filed Nov 4, 2025 ΔOwn +1.0%
+$25.3K
9,415 sh @ $3
PLUG
Grant/award Marsh Andrew · Director, CEO · Grant/award · filed Oct 7, 2025 ΔOwn +2.1%
+$69.8K
18,324 sh @ $4
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PLUG
Grant/award Marsh Andrew · Director, President and CEO · Grant/award · filed Sep 12, 2025 ΔOwn +2.1%
+$30.8K
18,471 sh @ $2
PLUG
Grant/award Marsh Andrew · Director, President and CEO · Grant/award · filed Sep 12, 2025 ΔOwn +2.3%
+$30.8K
19,968 sh @ $2
PLUG
Grant/award Marsh Andrew · Director, President and CEO · Grant/award · filed Jul 17, 2025 ΔOwn +4.7%
+$38.5K
38,156 sh @ $1
PLUG
Grant/award Marsh Andrew · Director, President and CEO · Grant/award · filed Jun 13, 2025 ΔOwn +4.7%
+$30.8K
36,448 sh @ $1
PLUG
Tax withholding Marsh Andrew · Director, President and CEO · Tax withholding · filed Oct 3, 2023 ΔOwn −11%
−$749K
96,892 sh @ $8
GEVO
Sell Marsh Andrew · Director · Open-market sale · filed Aug 25, 2023 ΔOwn −5.8%

Marsh Andrew sold $23.1K of GEVO, trimming their stake 6%.

−$23.1K
16,750 sh @ $1
GEVO
Sell Marsh Andrew · Director · Open-market sale · filed Jun 7, 2023 ΔOwn −4.6%

Marsh Andrew sold $21.5K of GEVO, trimming their stake 5%.

−$21.5K
13,950 sh @ $2
GEVO
Grant/award Marsh Andrew · Director · Grant/award · filed May 25, 2023 ΔOwn +50%
+$0
100,807 sh
GEVO
Sell Marsh Andrew · Director · Open-market sale · filed Nov 23, 2022 ΔOwn −17%

Marsh Andrew sold $85.4K of GEVO, trimming their stake 17%.

−$85.4K
41,904 sh @ $2
PLUG
Tax withholding Marsh Andrew · Director, President and CEO · Tax withholding · filed Dec 2, 2022 ΔOwn −10.0%
−$2.12M
96,893 sh @ $22
PLUG
Tax withholding Marsh Andrew · Director, President and CEO · Tax withholding · filed Dec 2, 2022 ΔOwn −9.7%
−$2.97M
104,369 sh @ $28
GEVO
Grant/award Marsh Andrew · Director · Grant/award · filed Jun 7, 2022 ΔOwn +13%
+$0
27,353 sh
PLUG
Tax withholding Marsh Andrew · Director, President & CEO · Tax withholding · filed May 2, 2022 ΔOwn −9.3%
−$2.51M
88,312 sh @ $28
PLUG
Option exercise Marsh Andrew · Director, President & CEO · Option exercise · filed Aug 31, 2021 ΔOwn +19%
+$0
166,667 sh
PLUG
Tax withholding Marsh Andrew · Director, President & CEO · Tax withholding · filed Aug 31, 2021 ΔOwn −7.8%
−$2.14M
80,284 sh @ $27
GEVO
Grant/award Marsh Andrew · Director · Grant/award · filed Aug 24, 2021 ΔOwn +43%
+$0
65,886 sh
PLUG
Option exercise Marsh Andrew · Director, President & CEO · Option exercise · filed Aug 23, 2021 ΔOwn +29%
+$0
216,666 sh
PLUG
Tax withholding Marsh Andrew · Director, President & CEO · Tax withholding · filed Aug 23, 2021 ΔOwn −11%
−$2.62M
104,369 sh @ $25
PLUG
Option exercise Marsh Andrew · Director, President & CEO · Option exercise · filed Jan 21, 2021 ΔOwn +14%
+$650.3K
106,600 sh @ $6
PLUG
Option exercise Marsh Andrew · Director, President & CEO · Option exercise · filed Jan 21, 2021 ΔOwn +55%
+$998.7K
466,668 sh @ $2
PLUG
Sell Marsh Andrew · Director, President & CEO · Open-market sale · filed Jan 21, 2021 ΔOwn −1.0%

Marsh Andrew sold $844.7K of PLUG, trimming their stake 1%.

−$844.7K
13,482 sh @ $63
PLUG
Sell Marsh Andrew · Director, President & CEO · Open-market sale · filed Jan 21, 2021 ΔOwn −3.8%

Marsh Andrew sold $3.19M of PLUG, trimming their stake 4%.

−$3.19M
49,918 sh @ $64
PLUG
Sell Marsh Andrew · Director, President & CEO · Open-market sale · filed Jan 21, 2021 ΔOwn −12%

Marsh Andrew sold $10.12M of PLUG, trimming their stake 12%.

−$10.12M
156,051 sh @ $65
PLUG
Sell Marsh Andrew · Director, President & CEO · Open-market sale · filed Jan 21, 2021 ΔOwn −10%

Marsh Andrew sold $7.49M of PLUG, trimming their stake 10%.

−$7.49M
114,120 sh @ $66
PLUG
Sell Marsh Andrew · Director, President & CEO · Open-market sale · filed Jan 21, 2021 ΔOwn −13%

Marsh Andrew sold $8.84M of PLUG, trimming their stake 13%.

−$8.84M
132,753 sh @ $67

Frequently asked questions

How is Marsh Andrew'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 Marsh Andrew'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.