Gregory Scott Floerke

Insider

First SEC filing: Aug. 5, 2022 · Latest: Aug. 5, 2022

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 73 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

73 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 2, 2026	MPLX	F	995	$59.22	$58,924	97,234 Direct	-1.01%	Disposed	-0.8% (price as of 2026-08-20)
March 2, 2026	MPLX	F	1,100	$59.22	$65,142	96,134 Direct	-1.13%	Disposed	-0.8% (price as of 2026-08-20)
March 2, 2026	MPLX	F	797	$59.22	$47,198	95,337 Direct	-0.83%	Disposed	-0.8% (price as of 2026-08-20)
March 2, 2026	MPC	F	278	$206.30	$57,351	31,560 Direct	-0.87%	Disposed	76.7% (price as of 2026-08-20)
March 2, 2026	MPC	F	251	$206.30	$51,781	31,309 Direct	-0.80%	Disposed	76.7% (price as of 2026-08-20)
March 2, 2026	MPC	F	278	$206.30	$57,351	31,031 Direct	-0.89%	Disposed	76.7% (price as of 2026-08-20)
March 1, 2026	MPLX	A	5,986	—	—	98,229 Direct	+6.49%	Acquired	(price as of 2026-08-20)
March 1, 2026	MPC	A	1,730	—	—	31,838 Direct	+5.75%	Acquired	(price as of 2026-08-20)
Dec. 12, 2025	MPC	F	85	$185.77	$15,790	30,108 Direct	-0.28%	Disposed	96.2% (price as of 2026-08-20)
Dec. 12, 2025	MPLX	F	242	$54.85	$13,274	92,243 Direct	-0.26%	Disposed	7.1% (price as of 2026-08-20)
March 3, 2025	MPC	F	251	$148.65	$37,311	30,193 Direct	-0.82%	Disposed	145.2% (price as of 2026-08-20)
March 3, 2025	MPC	F	278	$148.65	$41,325	30,444 Direct	-0.90%	Disposed	145.2% (price as of 2026-08-20)
March 3, 2025	MPC	F	445	$148.65	$66,149	30,722 Direct	-1.43%	Disposed	145.2% (price as of 2026-08-20)
March 3, 2025	MPLX	F	1,100	$54.34	$59,774	92,485 Direct	-1.18%	Disposed	8.1% (price as of 2026-08-20)
March 3, 2025	MPLX	F	995	$54.34	$54,068	93,585 Direct	-1.05%	Disposed	8.1% (price as of 2026-08-20)
March 3, 2025	MPLX	F	1,054	$54.34	$57,274	94,580 Direct	-1.10%	Disposed	8.1% (price as of 2026-08-20)
March 1, 2025	MPC	A	2,098	—	—	31,167 Direct	+7.22%	Acquired	(price as of 2026-08-20)
March 1, 2025	MPLX	A	6,014	—	—	95,634 Direct	+6.71%	Acquired	(price as of 2026-08-20)
Dec. 13, 2024	MPLX	F	333	$48.86	$16,270	89,620 Direct	-0.37%	Disposed	20.3% (price as of 2026-08-20)
Dec. 13, 2024	MPC	F	77	$145.56	$11,208	29,069 Direct	-0.26%	Disposed	150.4% (price as of 2026-08-20)
March 1, 2024	MPC	A	1,896	—	—	29,146 Direct	+6.96%	Acquired	(price as of 2026-08-20)
March 1, 2024	MPC	F	278	$172.34	$47,911	27,250 Direct	-1.01%	Disposed	111.5% (price as of 2026-08-20)
March 1, 2024	MPC	F	445	$172.34	$76,691	27,528 Direct	-1.59%	Disposed	111.5% (price as of 2026-08-20)
March 1, 2024	MPC	F	575	$172.34	$99,096	27,973 Direct	-2.01%	Disposed	111.5% (price as of 2026-08-20)
March 1, 2024	MPLX	A	8,303	—	—	89,953 Direct	+10.17%	Acquired	(price as of 2026-08-20)
March 1, 2024	MPLX	F	995	$38.87	$38,676	81,650 Direct	-1.20%	Disposed	51.2% (price as of 2026-08-20)
March 1, 2024	MPLX	F	1,054	$38.87	$40,969	82,645 Direct	-1.26%	Disposed	51.2% (price as of 2026-08-20)
March 1, 2024	MPLX	F	1,207	$38.87	$46,916	83,699 Direct	-1.42%	Disposed	51.2% (price as of 2026-08-20)
Dec. 1, 2023	MPC	F	85	$151.42	$12,871	28,548 Direct	-0.30%	Disposed	140.7% (price as of 2026-08-20)
Dec. 1, 2023	MPLX	F	301	$36.61	$11,020	84,906 Direct	-0.35%	Disposed	60.5% (price as of 2026-08-20)
Aug. 10, 2023	MPC	M	8,189	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 10, 2023	MPC	S	8,189	$145.80	$1,193,956	28,633 Direct	-22.24%	Disposed	150.0% (price as of 2026-08-20)
Aug. 10, 2023	MPC	M	8,189	$47.73	$390,861	36,822 Direct	+28.60%	Acquired	663.5% (price as of 2026-08-20)
March 1, 2023	MPC	F	575	$126.52	$72,749	26,821 Direct	-2.10%	Disposed	188.0% (price as of 2026-08-20)
March 1, 2023	MPLX	A	7,504	—	—	85,207 Direct	+9.66%	Acquired	(price as of 2026-08-20)
March 1, 2023	MPLX	F	1,053	$34.54	$36,371	77,703 Direct	-1.34%	Disposed	70.1% (price as of 2026-08-20)
March 1, 2023	MPLX	F	1,207	$34.54	$41,690	78,756 Direct	-1.51%	Disposed	70.1% (price as of 2026-08-20)
March 1, 2023	MPLX	F	727	$34.54	$25,111	79,963 Direct	-0.90%	Disposed	70.1% (price as of 2026-08-20)
March 1, 2023	MPC	A	2,096	—	—	28,633 Direct	+7.90%	Acquired	(price as of 2026-08-20)
March 1, 2023	MPC	F	284	$126.52	$35,932	26,537 Direct	-1.06%	Disposed	188.0% (price as of 2026-08-20)
March 1, 2023	MPC	F	436	$126.52	$55,163	27,396 Direct	-1.57%	Disposed	188.0% (price as of 2026-08-20)
Jan. 26, 2023	MPC	A	842	—	—	27,832 Direct	+3.12%	Acquired	(price as of 2026-08-20)
Jan. 25, 2023	MPLX	A	798	—	—	80,690 Direct	+1.00%	Acquired	(price as of 2026-08-20)
Dec. 2, 2022	MPC	F	135	$118.23	$15,961	26,990 Direct	-0.50%	Disposed	208.2% (price as of 2026-08-20)
Dec. 2, 2022	MPLX	F	320	$33.82	$10,822	79,892 Direct	-0.40%	Disposed	73.8% (price as of 2026-08-20)
April 19, 2022	MPLX	S 10b5-1	2,500	$35.00	$87,500	80,212 Direct	-3.02%	Disposed	67.9% (price as of 2026-08-20)
March 1, 2022	MPLX	A	7,952	—	—	82,712 Direct	+10.64%	Acquired	(price as of 2026-08-20)
March 1, 2022	MPLX	F	1,089	$32.63	$35,534	74,760 Direct	-1.44%	Disposed	80.1% (price as of 2026-08-20)
March 1, 2022	MPLX	F	730	$32.63	$23,820	75,849 Direct	-0.95%	Disposed	80.1% (price as of 2026-08-20)
March 1, 2022	MPLX	F	257	$32.63	$8,386	76,579 Direct	-0.33%	Disposed	80.1% (price as of 2026-08-20)
Feb. 7, 2022	MPLX	S 10b5-1	2,500	$33.20	$83,000	76,836 Direct	-3.15%	Disposed	77.0% (price as of 2026-08-20)
Jan. 25, 2022	MPLX	A	780	—	—	79,336 Direct	+0.99%	Acquired	(price as of 2026-08-20)
Nov. 19, 2021	MPLX	F	367	$29.68	$10,893	78,556 Direct	-0.47%	Disposed	98.0% (price as of 2026-08-20)
Nov. 8, 2021	MPLX	S 10b5-1	2,500	$31.25	$78,125	78,923 Direct	-3.07%	Disposed	88.0% (price as of 2026-08-20)
Nov. 8, 2021	MPLX	S 10b5-1	2,500	$31.27	$78,175	81,423 Direct	-2.98%	Disposed	87.9% (price as of 2026-08-20)
May 6, 2021	MPLX	S 10b5-1	2,500	$27.00	$67,500	83,923 Direct	-2.89%	Disposed	117.6% (price as of 2026-08-20)
March 1, 2021	MPLX	F	609	$24.59	$14,975	78,050 Direct	-0.77%	Disposed	139.0% (price as of 2026-08-20)
March 1, 2021	MPLX	F	256	$24.59	$6,295	77,794 Direct	-0.33%	Disposed	139.0% (price as of 2026-08-20)
March 1, 2021	MPLX	F	481	$24.59	$11,828	77,313 Direct	-0.62%	Disposed	139.0% (price as of 2026-08-20)
March 1, 2021	MPLX	A	9,110	—	—	86,423 Direct	+11.78%	Acquired	(price as of 2026-08-20)
Jan. 28, 2021	MPLX	A	2,254	—	—	78,659 Direct	+2.95%	Acquired	(price as of 2026-08-20)
Jan. 13, 2021	MPLX	S 10b5-1	2,500	$25.00	$62,500	76,405 Direct	-3.17%	Disposed	135.1% (price as of 2026-08-20)
Dec. 28, 2020	MPLX	F	81	$21.50	$1,742	78,905 Direct	-0.10%	Disposed	173.3% (price as of 2026-08-20)
Dec. 28, 2020	MPLX	F	97	$21.50	$2,086	78,986 Direct	-0.12%	Disposed	173.3% (price as of 2026-08-20)
Dec. 4, 2020	MPLX	S 10b5-1	2,500	$23.00	$57,500	79,083 Direct	-3.06%	Disposed	155.5% (price as of 2026-08-20)
Nov. 18, 2020	MPLX	S 10b5-1	2,500	$21.00	$52,500	81,583 Direct	-2.97%	Disposed	179.8% (price as of 2026-08-20)
March 2, 2020	MPLX	A	4,983	—	—	84,083 Direct	+6.30%	Acquired	(price as of 2026-08-20)
March 2, 2020	MPLX	F	442	$20.08	$8,875	79,100 Direct	-0.56%	Disposed	192.7% (price as of 2026-08-20)
March 2, 2020	MPLX	F	1,051	$20.08	$21,104	79,542 Direct	-1.30%	Disposed	192.7% (price as of 2026-08-20)
March 2, 2020	MPLX	F	1,235	$20.08	$24,799	80,593 Direct	-1.51%	Disposed	192.7% (price as of 2026-08-20)
Jan. 24, 2020	MPLX	A	3,090	—	—	81,828 Direct	+3.92%	Acquired	(price as of 2026-08-20)
March 1, 2019	MPLX	A	3,014	—	—	78,738 Direct	+3.98%	Acquired	(price as of 2026-08-20)
March 1, 2019	MPLX	F	693	$33.24	$23,035	75,724 Direct	-0.91%	Disposed	76.8% (price as of 2026-08-20)
March 1, 2019	MPLX	F	800	$33.24	$26,592	76,417 Direct	-1.04%	Disposed	76.8% (price as of 2026-08-20)
Dec. 18, 2018	MPLX	F	3,884	$32.48	$126,152	77,217 Direct	-4.79%	Disposed	80.9% (price as of 2026-08-20)
March 1, 2018	MPLX	A	7,166	—	—	81,101 Direct	+9.69%	Acquired	(price as of 2026-08-20)
March 1, 2018	MPLX	F	839	$34.66	$29,080	73,935 Direct	-1.12%	Disposed	69.5% (price as of 2026-08-20)
Dec. 18, 2017	MPLX	F	2,824	$36.34	$102,624	74,774 Direct	-3.64%	Disposed	61.7% (price as of 2026-08-20)
Dec. 11, 2017	MPLX	S 10b5-1	2,000	$37.00	$74,000	77,598 Direct	-2.51%	Disposed	58.8% (price as of 2026-08-20)
Nov. 30, 2017	MPLX	S 10b5-1	2,000	$36.00	$72,000	79,598 Direct	-2.45%	Disposed	63.2% (price as of 2026-08-20)
Nov. 20, 2017	MPLX	S 10b5-1	2,000	$35.00	$70,000	81,598 Direct	-2.39%	Disposed	67.9% (price as of 2026-08-20)
Nov. 20, 2017	MPLX	S 10b5-1	2,000	$34.38	$68,760	83,598 Direct	-2.34%	Disposed	70.9% (price as of 2026-08-20)
March 1, 2017	MPLX	A	8,417	—	—	85,598 Direct	+10.91%	Acquired	(price as of 2026-08-20)
Jan. 24, 2017	MPLX	S 10b5-1	1,000	$37.00	$37,000	77,181 Direct	-1.28%	Disposed	58.8% (price as of 2026-08-20)
Jan. 4, 2017	MPLX	S 10b5-1	1,000	$36.00	$36,000	78,181 Direct	-1.26%	Disposed	63.2% (price as of 2026-08-20)
Jan. 3, 2017	MPLX	S 10b5-1	1,000	$35.00	$35,000	79,181 Direct	-1.25%	Disposed	67.9% (price as of 2026-08-20)
Dec. 19, 2016	MPLX	F	2,826	$32.23	$91,082	80,181 Direct	-3.40%	Disposed	82.3% (price as of 2026-08-20)
Oct. 12, 2016	MPLX	S 10b5-1	1,000	$31.00	$31,000	83,007 Direct	-1.19%	Disposed	89.6% (price as of 2026-08-20)
Dec. 18, 2015	MPLX	A	62,951	—	—	83,985 Direct	+299.28%	Acquired	(price as of 2026-08-20)
Dec. 4, 2015	MPLX	A	21,034	—	—	21,034 Direct	—	Acquired	(price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Aug. 10, 2023	MPC	Employee Stock Option (right to buy)	Common Stock (8,189)	$47.73	March 1, 2030	8,189	Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 8 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Aug. 5, 2022	MPC	Common Stock	27,125	Direct
Aug. 5, 2022	MPC	Common Stock	562	Indirect
Aug. 5, 2022	MPC	Employee Stock Option (right to buy)→ Common Stock (8,189)	8,189	Direct
Jan. 11, 2005	MTZ	Incentive Stock Option (right to buy) [F1]→ Common Stock (10,277)	10,277	Direct
Jan. 11, 2005	MTZ	Incentive Stock Option (right to buy) [F1]→ Common Stock (20,040)	20,040	Direct
Jan. 11, 2005	MTZ	Non-Qualified Stock Option (right to buy) [F1]→ Common Stock (40,000)	40,000	Direct
Jan. 11, 2005	MTZ	Non-Qualified Stock Option (right to buy) [F1]→ Common Stock (29,723)	29,723	Direct
Jan. 11, 2005	MTZ	Non-Qualified Stock Option (right to buy) [F1]→ Common Stock (14,960)	14,960	Direct