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Insider Trading Intelligence
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TH

Tara J. Hemmer

WM
SR VP, OPERATIONS · WASTE MANAGEMENT INC · CIK 0001727026
FILING MIX · LIFETIME35%/65%
BUYS
25
SELLS
46
TOTAL VALUE
$74.63M
COMPANIES
1
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
81,462
AVG SELL PX
$152.66
TRADE KIND
SHOWING 71 / 71
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
22 backtested trades · 8 horizons · 9 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Tara J. Hemmer, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d22+50.00%+0.17%-1.67%+1.84%+1.65%—
14d22+36.36%+0.44%-2.19%+2.63%+1.75%—
30d22+36.36%+0.59%-3.74%+4.33%+4.84%—
60d22+22.73%+3.13%-0.98%+4.12%+3.64%—
90d22+22.73%+5.08%+1.22%+4.72%+3.17%—
180d22(2 pending)+20.00%+9.53%+9.06%+0.47%-2.11%—
1y22(2 pending)+15.00%+15.00%+17.18%-2.18%-1.51%—
2y22(5 pending)+0.00%+30.30%+32.04%-1.74%-6.93%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
WM · 81,461.579 shares · as of May 20, 2026
026,77353,54680,319107,092202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 25 buys / 46 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
2,544——81,461.579May 20, 2026May 21, 2026 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
8,405——8,405Mar 3, 2026Mar 5, 2026 ↗View →
WM
WASTE MANAGEMENT INC
SALE10b5-1
10b5-1 plan
4,818$241.83$1.17M78,917.579Mar 2, 2026Mar 3, 2026 ↗View →
WM
WASTE MANAGEMENT INC
SALE10b5-1
10b5-1 plan
690$219.71$151.6K83,735.579Jan 30, 2026Feb 2, 2026 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
10,988$226.41$2.49M88,110.579Jan 29, 2026Feb 2, 2026 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
3,685$226.41$834.3K84,425.579Jan 29, 2026Feb 2, 2026 ↗View →
WM
WASTE MANAGEMENT INC
SALEGRANT
Gift
693——77,122.579Nov 25, 2025Nov 26, 2025 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
9,130——77,815.579Sep 2, 2025Sep 4, 2025 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASE
SVP & Chief Sustainability Off
12,859$145.67$1.87M107,091.579May 20, 2025May 21, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
20,860$126.01$2.63M0May 20, 2025May 21, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
15,050$233.00$3.51M68,685.579May 20, 2025May 21, 2025 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASE
SVP & Chief Sustainability Off
19,710$110.81$2.18M94,232.579May 20, 2025May 21, 2025 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASE
SVP & Chief Sustainability Off
20,860$126.01$2.63M74,522.579May 20, 2025May 21, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
19,710$110.81$2.18M0May 20, 2025May 21, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
9,915$234.00$2.32M97,176.579May 20, 2025May 21, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
13,441$233.00$3.13M83,735.579May 20, 2025May 21, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
12,859$145.67$1.87M0May 20, 2025May 21, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALE10b5-1
10b5-1 plan
3,094$228.11$705.8K53,662.579Mar 5, 2025Mar 5, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
2,008$231.37$464.6K56,756.579Mar 1, 2025Mar 4, 2025 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
8,851——8,851Feb 25, 2025Feb 27, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALE10b5-1
10b5-1 plan
4,576$222.12$1.02M58,764.579Feb 4, 2025Feb 4, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALE10b5-1
10b5-1 plan
693$220.41$152.7K63,340.579Jan 31, 2025Feb 1, 2025 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
14,007$218.72$3.06M68,883.579Jan 30, 2025Feb 1, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
4,850$218.72$1.06M64,033.579Jan 30, 2025Feb 1, 2025 ↗View →
WM
WASTE MANAGEMENT INC
SALEGRANT
Gift
714——54,876.579Dec 5, 2024Dec 6, 2024 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
9,302——9,302Mar 1, 2024Mar 5, 2024 ↗View →
WM
WASTE MANAGEMENT INC
SALE10b5-1
10b5-1 plan
1,782$204.23$363.9K55,590.579Feb 22, 2024Feb 26, 2024 ↗View →
WM
WASTE MANAGEMENT INC
SALE10b5-1
10b5-1 plan
9,534$203.24$1.94M57,372.579Feb 20, 2024Feb 21, 2024 ↗View →
WM
WASTE MANAGEMENT INC
SALE10b5-1
10b5-1 plan
775$199.25$154.4K66,906.579Feb 14, 2024Feb 15, 2024 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
8,768$196.85$1.73M67,681.579Feb 13, 2024Feb 15, 2024 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
23,860$196.85$4.70M76,449.579Feb 13, 2024Feb 15, 2024 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
13,500$98.90$1.34M0Dec 1, 2023Dec 5, 2023 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASE
SVP & Chief Sustainability Off
13,500$98.90$1.34M62,598.579Dec 1, 2023Dec 5, 2023 ↗View →
WM
WASTE MANAGEMENT INC
SALE10b5-1
10b5-1 plan
10,009$172.54$1.73M52,589.579Dec 1, 2023Dec 5, 2023 ↗View →
WM
WASTE MANAGEMENT INC
SALEGRANT
Gift
900——59,146.579Nov 27, 2023Nov 28, 2023 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
13,505$98.90$1.34M13,500Nov 27, 2023Nov 28, 2023 ↗View →
WM
WASTE MANAGEMENT INC
SALE10b5-1
10b5-1 plan
10,048$171.19$1.72M49,098.579Nov 27, 2023Nov 28, 2023 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASE
SVP & Chief Sustainability Off
13,505$98.90$1.34M60,046.579Nov 27, 2023Nov 28, 2023 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
10,969——10,969Mar 7, 2023Mar 9, 2023 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
7,515$155.00$1.16M46,541.579Feb 17, 2023Feb 21, 2023 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
100$155.00$15.5K54,056.579Feb 13, 2023Feb 15, 2023 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
1,006$150.91$151.8K54,156.579Feb 2, 2023Feb 3, 2023 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASE
SVP & Chief Sustainability Off
19,104$152.11$2.91M61,722.579Feb 1, 2023Feb 3, 2023 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
6,560$152.11$997.8K55,162.579Feb 1, 2023Feb 3, 2023 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
5,102——42,618.579Mar 1, 2022Mar 3, 2022 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
12,859——12,859Mar 1, 2022Mar 3, 2022 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
10,910$142.15$1.55M37,516.579Feb 17, 2022Feb 22, 2022 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
1,080$141.73$153.1K48,426.579Feb 16, 2022Feb 17, 2022 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
25,550$142.62$3.64M58,527.579Feb 15, 2022Feb 17, 2022 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
9,021$142.62$1.29M49,506.579Feb 15, 2022Feb 17, 2022 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
16,447$85.34$1.40M0Oct 1, 2021Oct 5, 2021 ↗View →
WM
WASTE MANAGEMENT INC
SALE
SVP & Chief Sustainability Off
12,186$149.07$1.82M32,977.579Oct 1, 2021Oct 5, 2021 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASE
SVP & Chief Sustainability Off
16,447$85.34$1.40M45,163.579Oct 1, 2021Oct 5, 2021 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
19,710——19,710Feb 23, 2021Feb 25, 2021 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
6,810$110.44$752.1K28,498.876Feb 22, 2021Feb 24, 2021 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
1,391$111.28$154.8K35,308.876Feb 19, 2021Feb 22, 2021 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
17,143$112.37$1.93M42,132.876Feb 18, 2021Feb 22, 2021 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
5,433$112.37$610.5K36,699.876Feb 18, 2021Feb 22, 2021 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
5,938$73.34$435.5K0Nov 9, 2020Nov 12, 2020 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASE
Sr VP, Operations
5,938$73.34$435.5K33,841.876Nov 9, 2020Nov 12, 2020 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
8,852$123.85$1.10M24,989.876Nov 9, 2020Nov 12, 2020 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASE
Sr VP, Operations
6,530$56.24$367.2K27,903.876Nov 9, 2020Nov 12, 2020 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
6,530$56.24$367.2K0Nov 9, 2020Nov 12, 2020 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
270$97.87$26.4K21,155May 2, 2020May 5, 2020 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
52$113.09$5.9K21,425Mar 2, 2020Mar 3, 2020 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
158$109.29$17.3K21,477Feb 28, 2020Mar 3, 2020 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
20,860——20,860Feb 19, 2020Feb 21, 2020 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
1,684$125.74$211.7K21,635Feb 18, 2020Feb 18, 2020 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
309$125.13$38.7K23,319Feb 14, 2020Feb 18, 2020 ↗View →
WM
WASTE MANAGEMENT INC
SALE
Sr VP, Operations
959$124.06$119.0K23,628Feb 13, 2020Feb 18, 2020 ↗View →
WM
WASTE MANAGEMENT INC
PURCHASEGRANT
Stock grant
3,821$124.06$474.0K24,587Feb 13, 2020Feb 18, 2020 ↗View →
Other insiders · WM
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About this filer
CIK 0001727026
ROLE
Sr VP, Operations
PRIMARY
WM
COMPANIES
1
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001727026DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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