MENKE SEAN E

Director, Executive Chair of the Board, Chief Executive Officer, President and CEO · SEC CIK 1251876
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Buy track record

How this insider's open-market purchases have performed
100%
of buys now in profit
1 up · 0 down
Avg return since buy+12.9%
Median return+12.9%
Best trade+12.9%
Worst trade+12.9%
Buys scored1
Average return by holding period — separates good entry timing from riding one long winner
After 1 month +9.8% 100% won · 1 trade
After 3 months +14.8% 100% won · 1 trade
After 6 months +16.7% 100% won · 1 trade
After 12 months not elapsed yet
DateCompany90d trendBuy priceValueΔOwn1M3M6M12MTo date
Nov 3, 2025 WM $196 $392.8K +38% +9.8% +14.8% +16.7% +12.9%
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
$392.8K
1 trades
Open-market sells
$7.86M
22 trades
Net flow
−$7.47M
Net selling
Total filings
52
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
WM
Buy MENKE SEAN E · Director · Open-market purchase · filed Nov 4, 2025 ΔOwn +38%

Menke Sean E, WM's Director, spent $392.8K of their own money on 2,000 shares at $196, growing their stake 38%.

+$392.8K
2,000 sh @ $196
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SABR
Grant/award MENKE SEAN E · Director, Executive Chair of the Board · Grant/award · filed Mar 19, 2024 ΔOwn +23%
+$0
348,259 sh
SABR
Tax withholding MENKE SEAN E · Director, Executive Chair of the Board · Tax withholding · filed Mar 19, 2024 ΔOwn −7.3%
−$271.3K
137,041 sh @ $2
SABR
Tax withholding MENKE SEAN E · Director, Executive Chair of the Board · Tax withholding · filed Mar 19, 2024 ΔOwn −3.1%
−$107.4K
54,222 sh @ $2
SABR
Tax withholding MENKE SEAN E · Director, Executive Chair of the Board · Tax withholding · filed Mar 19, 2024 ΔOwn −2.9%
−$94.8K
47,872 sh @ $2
SABR
Sell MENKE SEAN E · Director, Executive Chair of the Board · Open-market sale · filed Feb 9, 2024 ΔOwn −3.2%

Menke Sean E sold $203.8K of SABR, trimming their stake 3%.

−$203.8K
50,000 sh @ $4
SABR
Sell MENKE SEAN E · Director, Executive Chair of the Board · Open-market sale · filed Jan 10, 2024 ΔOwn −3.1%

Menke Sean E sold $221.4K of SABR, trimming their stake 3%.

−$221.4K
50,000 sh @ $4
SABR
Sell MENKE SEAN E · Director, Executive Chair of the Board · Open-market sale · filed Dec 11, 2023 ΔOwn −3.0%

Menke Sean E sold $200K of SABR, trimming their stake 3%.

−$200K
50,000 sh @ $4
SABR
Sell MENKE SEAN E · Director, Executive Chair of the Board · Open-market sale · filed Sep 8, 2023 ΔOwn −5.7%

Menke Sean E sold $507K of SABR, trimming their stake 6%.

−$507K
100,000 sh @ $5
SABR
Sell MENKE SEAN E · Director, Executive Chair of the Board · Open-market sale · filed Aug 14, 2023 ΔOwn −5.4%

Menke Sean E sold $561.9K of SABR, trimming their stake 5%.

−$561.9K
100,000 sh @ $6
SABR
Sell MENKE SEAN E · Director, Executive Chair of the Board · Open-market sale · filed Aug 4, 2023 ΔOwn −5.1%

Menke Sean E sold $500.8K of SABR, trimming their stake 5%.

−$500.8K
100,000 sh @ $5
SABR
Grant/award MENKE SEAN E · Director, Executive Chair of the Board · Grant/award · filed May 17, 2023 ΔOwn +41%
+$2M
574,713 sh @ $3
SABR
Tax withholding MENKE SEAN E · Director, Chief Executive Officer · Tax withholding · filed Mar 17, 2023 ΔOwn −8.1%
−$410.4K
102,093 sh @ $4
SABR
Tax withholding MENKE SEAN E · Director, Chief Executive Officer · Tax withholding · filed Mar 17, 2023 ΔOwn −13%
−$617.7K
153,662 sh @ $4
SABR
Grant/award MENKE SEAN E · Director, Chief Executive Officer · Grant/award · filed Mar 17, 2023 ΔOwn +39%
+$0
390,494 sh
SABR
Sell MENKE SEAN E · Director, Chief Executive Officer · Open-market sale · filed Aug 17, 2022 ΔOwn −1.6%

Menke Sean E sold $160.2K of SABR, trimming their stake 2%.

−$160.2K
20,000 sh @ $8
SABR
Tax withholding MENKE SEAN E · Director, Chief Executive Officer · Tax withholding · filed Jun 17, 2022 ΔOwn −8.2%
−$719.5K
114,033 sh @ $6
SABR
Sell MENKE SEAN E · Director, Chief Executive Officer · Open-market sale · filed Apr 20, 2022 ΔOwn −2.1%

Menke Sean E sold $323.4K of SABR, trimming their stake 2%.

−$323.4K
30,000 sh @ $11
SABR
Sell MENKE SEAN E · Director, Chief Executive Officer · Open-market sale · filed Mar 17, 2022 ΔOwn −3.4%

Menke Sean E sold $311.5K of SABR, trimming their stake 3%.

−$311.5K
30,000 sh @ $10
SABR
Tax withholding MENKE SEAN E · Director, Chief Executive Officer · Tax withholding · filed Mar 17, 2022 ΔOwn −21%
−$1.69M
175,745 sh @ $10

Frequently asked questions

How is MENKE SEAN E'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 MENKE SEAN E'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.