Hyliion Holdings Corp.
US ˙ NYSEAM ˙ US4491091074

Introduction

This page provides a comprehensive analysis of the known insider trading history of Frank M Semple. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate Frank M Semple has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:MPLX / MPLX LP - Limited Partnership Director 55,968
US:MPC / Marathon Petroleum Corporation Director 13,709
US:HYLN / Hyliion Holdings Corp. Director 0
US:ANDX / Tesoro Logistics LP Director 0
US:MWE / MarkWest Energy Partners, LP Chairman, President & CEO, Director 0
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Frank M Semple. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Purchases HYLN / Hyliion Holdings Corp. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in HYLN / Hyliion Holdings Corp.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

HYLN / Hyliion Holdings Corp. Insider Trades
Insider Sales HYLN / Hyliion Holdings Corp. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in HYLN / Hyliion Holdings Corp.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

HYLN / Hyliion Holdings Corp. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Frank M Semple as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2025-08-19 2025-08-15 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,051 55,968 1.91
2025-05-20 2025-05-16 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 990 54,918 1.84
2025-05-05 2025-05-01 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 1,276 13,709 10.26
2025-05-05 2025-05-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 2,848 53,928 5.58
2025-04-03 2025-04-01 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 94 12,433 0.76
2025-04-03 2025-04-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 220 51,079 0.43
2025-02-18 2025-02-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 888 50,859 1.78
2025-01-06 2025-01-02 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 294 12,258 2.46
2025-01-06 2025-01-02 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 738 49,971 1.50
2024-11-19 2024-11-15 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 982 49,233 2.03
2024-10-03 2024-10-01 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 251 11,892 2.16
2024-10-03 2024-10-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 803 48,252 1.69
2024-08-20 2024-08-16 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 933 47,449 2.01
2024-07-03 2024-07-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 831 46,516 1.82
2024-07-03 2024-07-01 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 225 11,582 1.98
2024-05-15 2024-05-13 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 924 45,685 2.06
2024-04-03 2024-04-01 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 193 11,304 1.73
2024-04-03 2024-04-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 862 44,762 1.96
2024-02-16 2024-02-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 957 43,899 2.23
2024-01-04 2024-01-02 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 258 11,061 2.39
2024-01-04 2024-01-02 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 972 42,943 2.31
2023-11-15 2023-11-13 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 987 41,971 2.41
2023-10-04 2023-10-02 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 262 10,741 2.50
2023-10-04 2023-10-02 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,014 40,984 2.54
2023-08-16 2023-08-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 868 39,970 2.22
2023-07-05 2023-07-03 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 937 39,102 2.46
2023-07-05 2023-07-03 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 335 10,427 3.32
2023-05-17 2023-05-15 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 853 38,165 2.29
2023-04-05 2023-04-03 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 916 37,312 2.52
2023-04-05 2023-04-03 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 290 10,026 2.98
2023-02-16 2023-02-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 796 36,396 2.24
2023-01-05 2023-01-03 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 978 35,599 2.83
2023-01-05 2023-01-03 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 355 9,679 3.81
2022-11-23 2022-11-22 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 773 34,621 2.28
2022-10-05 2022-10-03 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 383 9,261 4.31
2022-10-05 2022-10-03 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,050 33,848 3.20
2022-08-16 2022-08-12 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 698 32,798 2.17
2022-07-05 2022-07-01 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 466 8,827 5.57
2022-07-05 2022-07-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,075 32,100 3.46
2022-05-17 2022-05-13 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 693 31,025 2.28
2022-04-05 2022-04-01 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 464 8,316 5.91
2022-04-05 2022-04-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 954 30,333 3.25
2022-02-16 2022-02-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 612 29,379 2.13
2022-02-03 2022-02-02 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
S - Sale X -28,000 333,337 -7.75 34.00 -952,000 11,333,458
2022-02-03 2022-02-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
S - Sale X -28,000 361,337 -7.19 33.00 -924,000 11,924,121
2022-01-05 2022-01-03 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 600 7,794 8.34
2022-01-05 2022-01-03 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,065 28,767 3.84
2021-11-23 2021-11-19 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,145 27,702 4.31
2021-11-10 2021-11-08 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
S - Sale X -27,000 389,337 -6.49 32.00 -864,000 12,458,784
2021-10-05 2021-10-01 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 619 7,130 9.52
2021-10-05 2021-10-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,101 26,557 4.33
2021-08-17 2021-08-13 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 606 25,456 2.44
2021-07-02 2021-07-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,068 24,850 4.49
2021-07-02 2021-07-01 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 643 6,444 11.08
2021-05-18 2021-05-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 557 23,782 2.40
2021-05-05 2021-05-03 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 484 5,749 9.20
2021-05-05 2021-05-03 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 113 23,225 0.49
2021-04-29 3 MPC Marathon Petroleum Corp
Common Stock
5,265
2021-04-05 2021-04-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,053 23,113 4.77
2021-02-16 2021-02-12 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 600 22,060 2.79
2021-01-06 2021-01-04 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,252 21,460 6.19
2020-11-17 2020-11-13 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 675 20,209 3.45
2020-10-05 2020-10-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,773 19,534 9.98
2020-10-05 2020-10-01 4 HYLN Hyliion Holdings Corp.
Class B Common Stock
C - Conversion -40,000 0 -100.00
2020-10-05 2020-10-01 4 HYLN Hyliion Holdings Corp.
Common Stock
C - Conversion 40,000 40,000
2020-08-18 2020-08-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 597 17,761 3.48
2020-07-06 2020-07-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,587 17,164 10.19
2020-05-19 2020-05-15 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 569 15,577 3.79
2020-04-03 2020-04-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 2,412 15,009 19.15
2020-02-18 2020-02-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 351 12,596 2.86
2020-01-06 2020-01-02 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 1,062 12,246 9.49
2019-11-18 2019-11-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 314 11,184 2.89
2019-10-03 2019-10-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 976 10,870 9.86
2019-08-15 2019-08-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 243 9,894 2.52
2019-08-01 2019-07-30 4 ANDX ANDEAVOR LOGISTICS LP
Common Units (Limited Partner Interests)
D - Sale to Issuer -2,359 0 -100.00
2019-07-03 2019-07-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 852 9,651 9.69
2019-07-03 2019-07-01 4 ANDX ANDEAVOR LOGISTICS LP
Common Units (Limited Partner Interests)
A - Award 245 2,359 11.60
2019-05-17 2019-05-15 4 ANDX ANDEAVOR LOGISTICS LP
Common Units (Limited Partner Interests)
A - Award 47 2,114 2.26
2019-05-17 2019-05-15 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 180 8,798 2.09
2019-04-03 2019-04-01 4 ANDX ANDEAVOR LOGISTICS LP
Common Units (Limited Partner Interests)
A - Award 774 2,068 59.89
2019-04-03 2019-04-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 828 8,618 10.62
2019-03-06 2019-03-04 4 SHLL Tortoise Acquisition Corp.
Class B Common Stock
J - Other 40,000 40,000
2019-02-19 2019-02-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 145 7,790 1.89
2019-02-19 2019-02-14 4 ANDX ANDEAVOR LOGISTICS LP
Common Units (Limited Partner Interests)
A - Award 24 1,293 1.85
2019-01-04 2019-01-02 4 ANDX ANDEAVOR LOGISTICS LP
Common Units (Limited Partner Interests)
A - Award 814 1,270 178.42
2019-01-04 2019-01-02 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 895 7,646 13.27
2018-12-31 2018-12-28 4 ANDX ANDEAVOR LOGISTICS LP
Common Units (Limited Partner Interests)
A - Award 456 456
2018-11-16 2018-11-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 132 6,750 1.99
2018-10-03 2018-10-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 620 6,619 10.33
2018-08-16 2018-08-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 98 5,999 1.66
2018-07-05 2018-07-02 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 756 5,901 14.70
2018-07-05 2018-07-02 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 480 4,645 11.53
2018-05-17 2018-05-15 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 89 5,145 1.76
2018-04-04 2018-04-02 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 785 5,056 18.37
2018-04-04 2018-04-02 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 470 4,141 12.81
2018-02-16 2018-02-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 70 4,271 1.67
2018-01-04 2018-01-02 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 711 4,201 20.37
2018-01-04 2018-01-02 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 502 3,646 15.98
2017-11-16 2017-11-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 60 3,490 1.74
2017-10-04 2017-10-02 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 723 3,430 26.70
2017-10-04 2017-10-02 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 604 3,125 23.96
2017-08-16 2017-08-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 45 2,708 1.67
2017-07-05 2017-07-03 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 748 2,663 39.09
2017-07-05 2017-07-03 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 636 2,502 34.05
2017-05-17 2017-05-15 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 28 1,915 1.51
2017-04-05 2017-04-03 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 676 1,854 57.35
2017-04-05 2017-04-03 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 703 1,886 59.45
2017-02-16 2017-02-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 16 1,183 1.34
2017-01-05 2017-01-03 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 728 285,732 0.26
2017-01-05 2017-01-03 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 638 1,170 119.77
2016-12-28 2016-12-27 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
S - Sale X -45,000 29,312 -60.56 34.00 -1,530,000 996,608
2016-11-23 2016-11-21 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
S - Sale X -45,000 74,312 -37.72 34.00 -1,530,000 2,526,608
2016-11-16 2016-11-14 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 7 285,004 0.00
2016-11-03 2016-11-01 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 432 284,997 0.15
2016-11-03 2016-11-01 4 MPC Marathon Petroleum Corp
Common Stock
A - Award 529 529
2016-10-31 2016-10-27 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
S - Sale X -45,000 119,312 -27.39 34.00 -1,530,000 4,056,608
2015-12-08 2015-12-04 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
D - Sale to Issuer -44,750 0 -100.00 38.83 -1,737,642
2015-12-08 2015-12-04 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
D - Sale to Issuer -94,000 0 -100.00 38.83 -3,650,020
2015-12-08 2015-12-04 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
D - Sale to Issuer -102,000 0 -100.00 38.83 -3,960,660
2015-12-08 2015-12-04 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
D - Sale to Issuer 157,045 0 -100.00 38.83 6,098,057
2015-12-08 2015-12-04 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
D - Sale to Issuer -261,069 0 -100.00 38.83 -10,137,309
2015-12-08 2015-12-04 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 48,777 48,777
2015-12-08 2015-12-04 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 102,460 102,460
2015-12-08 2015-12-04 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 111,180 111,180
2015-12-08 2015-12-04 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 164,312 164,312
2015-12-08 2015-12-04 4 MPLX MPLX LP
Common Units (Limited Partner Interests)
A - Award 284,565 284,565
2015-02-03 2015-01-31 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
F - Taxes -32,450 261,069 -11.06 58.93 -1,912,278 15,384,796
2015-01-23 2015-01-21 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
A - Award 54,160 293,519 22.63
2014-02-04 2014-01-31 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
F - Taxes -36,696 239,359 -13.29 70.19 -2,575,692 16,800,608
2014-01-24 2014-01-22 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
A - Award 32,172 276,055 13.19
2013-02-04 2013-01-31 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
F - Taxes -36,512 243,883 -13.02 55.22 -2,016,193 13,467,219
2013-01-25 2013-01-23 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
A - Award 47,008 280,395 20.14
2013-01-25 2012-12-28 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
G - Gift 94,000 94,000
2013-01-25 2012-12-28 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
G - Gift 102,000 102,000
2013-01-25 2012-12-28 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
G - Gift -196,000 150,745 -56.53
2012-02-02 2012-01-31 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
F - Taxes -23,621 624,882 -3.64 57.96 -1,369,073 36,218,161
2012-01-30 2012-01-26 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
A - Award 13,224 648,503 2.08
2012-01-30 2012-01-26 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
A - Award 58,041 635,279 10.05
2012-01-30 2012-01-26 4 MWE MARKWEST ENERGY PARTNERS L P
Common Units
A - Award 37,500 577,238 6.95
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)