Question 1

Which hedge funds and institutional investors hold MPC?

Accepted Answer

StonkWhisper tracks 13F filings submitted to the SEC by institutional investment managers with over $100 million in assets. The whale tracker for MPC shows which major funds hold positions, their portfolio weight, share counts, and how those positions changed quarter over quarter.

Question 2

What does conviction level mean for MPC whale holdings?

Accepted Answer

Conviction level reflects how significant MPC is within a fund's overall portfolio. A high-conviction position means the manager has allocated a large percentage of their portfolio to MPC, suggesting strong directional confidence in the stock.

Question 3

How current is the whale data for MPC?

Accepted Answer

Institutional 13F filings are required within 45 days of each calendar quarter end (March 31, June 30, September 30, December 31). StonkWhisper processes filings as they are published on SEC EDGAR, so data reflects the most recently reported quarter.

Question 4

What do quarter-over-quarter changes tell me about MPC?

Accepted Answer

QoQ changes for MPC show whether institutional managers are increasing, decreasing, initiating, or exiting their positions. New positions and significant increases can signal growing institutional conviction, while exits or decreases may indicate waning confidence.

Manager	Shares	Value	% of Portfolio	Manager AUM
State Street	19.0M	$4.6B	0.2%	$2896.4B
Harris (Oakmark)	2.8M	$673.7M	0.9%	$75.0B
Two Sigma	1.5M	$372.2M	0.3%	$123.9B
Geode Capital	950.7K	$232.2M	0.0%	$1607.5B
Citadel	440.0K	$107.4M	0.0%	$618.5B
Millennium	431.9K	$105.5M	0.0%	$240.3B
Arrowstreet	410.5K	$100.2M	0.1%	$184.8B
Citadel	326.8K	$79.8M	0.0%	$618.5B
Adage Capital	239.3K	$58.4M	0.1%	$64.8B
Gabelli	215.0K	$52.5M	0.4%	$14.8B
American Century	154.4K	$37.7M	0.0%	$194.3B
DFA	139.0K	$33.9M	0.0%	$481.4B
Wellington	107.1K	$26.2M	0.0%	$535.5B
Gotham Asset	92.4K	$22.6M	0.1%	$32.7B
Bridgewater	77.3K	$18.9M	0.1%	$22.4B
Millennium	70.7K	$17.3M	0.0%	$240.3B
ExodusPoint	49.8K	$12.2M	0.1%	$12.4B
Tudor	32.4K	$7.9M	0.0%	$53.9B
DE Shaw	32.4K	$7.9M	0.0%	$166.3B
Point72	29.7K	$7.3M	0.0%	$78.1B
Millennium	26.7K	$6.5M	0.0%	$240.3B
GMO	24.5K	$6.0M	0.0%	$39.1B
Fisher Investments	18.4K	$4.5M	0.0%	$294.9B
Point72	18.1K	$4.4M	0.0%	$78.1B
Balyasny	17.5K	$4.3M	0.0%	$77.1B
Two Sigma	17.0K	$4.2M	0.0%	$123.9B
Two Sigma	16.0K	$3.9M	0.0%	$123.9B
Citadel	15.0K	$3.7M	0.0%	$618.5B
BlackRock	9.2K	$2.2M	—	$5723.5B
Tudor	8.0K	$2.0M	0.0%	$53.9B
Man Group	7.1K	$1.7M	0.0%	$55.1B
Balyasny	7.1K	$1.7M	0.0%	$77.1B
Marshall Wace	7.0K	$1.7M	0.0%	$100.4B
Horizon Kinetics	5.2K	$1.3M	0.0%	$9.2B
Neuberger Berman (Eisman)	3.0K	$728K	0.0%	$131.4B
Kayne Anderson	2.1K	$516K	0.0%	$34.0B
LSV	1.3M	$313K	0.7%	$46.4M
Brevan Howard	1.0K	$248K	0.0%	$11.3B
Fidelity (FMR)	667	$163K	—	$1898.4B
Acadian	530.6K	$130K	0.2%	$70.5M
Northern Trust	517	$126K	—	$756.6B
AQR Capital	283	$69K	—	$218.4B
Franklin Templeton	231	$56K	—	$408.3B
Balyasny	90	$22K	—	$77.1B

MPC

Who Holds MPC

Changes This Quarter