$PSX

$288.85 +$5.67 (2.0%) Close

$PSX Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 399.0M shares outstanding

Who owns PSX?

By type of holder

Institutions 79.6% Insiders 0.2% Everyone else 20.2%

Concentration Top 10 holders own 42.8%

BlackRock, Inc. 8.6% · Vanguard Capital Management LLC 6.6%

Institutional ownership

79.6%

+1.1 pts vs last qtr

Institutional holders

2,098

-35 vs last qtr

Net shares bought

+4.4M

by institutions in Q2 2026

New / sold out

163 / 198

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Norges Bank NEW +4.2M
BlackRock, Inc. +2.1M

Biggest sellers in Q2 2026

Harris Associates L P −7.4M
Wells Fargo & Company/mn −1.3M

Who is planning to sell?

Notices of proposed sale, last 12 months

$63.4M

24 notices from 8 people

Shares covered

345.3K

0.09% of the company

Arranged in advance

25%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Brian Mandell Officer $27.8M
Kevin Mitchell Officer $18M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

−23.0%

−2.86% a year

Each share's claim on the business

+29.9%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$19.6B vs —

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years82% 3–5 years9% 1–3 years4% Under 1 year5%

Quarterly turnover

7.5%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting PSX on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	34.1M	8.55%	+2.1M (+6.5%)	≤2021	0.1%
Shares held by quarter Peak holding34.1M (Q2'26) Change over 8 quarters+3.0M Share of the company8.550% BlackRock, Inc.'s full portfolio →
VC Vanguard Capital Management LLC	26.2M	6.56%	+75.4K (+0.3%)	≤2021	0.1%
Shares held by quarter Peak holding26.2M (Q2'26) Change over 8 quarters+26.2M Share of the company6.560% Vanguard Capital Management LLC's full portfolio →

BlackRock, Inc.

34.1M

% of company

8.55%

Change vs last qtr

+2.1M (+6.5%)

Held since

≤2021

Vanguard Capital Management LLC

26.2M

% of company

6.56%

Change vs last qtr

+75.4K (+0.3%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Phillips 66, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting PSX on Form N-PORT; together they hold 31.7% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$2.15B	12.7M	3.19%	0.09%	June 30, 2026
V5 Vanguard 500 Index Fund Vanguard Index Funds	$1.76B	10.4M	2.60%	0.11%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$2.15B

% of company

3.19%

% of the fund

0.09%

As of

June 30, 2026

Vanguard 500 Index Fund

Vanguard Index Funds

Position value

$1.76B

% of company

2.60%

% of the fund

0.11%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Phillips 66 and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
LM Lashier Mark E Insider	157.4K	0.04%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.040% Lashier Mark E's insider activity →
MK Mitchell Kevin J Insider	109.2K	0.03%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.030% Mitchell Kevin J's insider activity →

Lashier Mark E

Insider

157.4K

% of company

0.04%

Change vs last qtr

—

Held since

—

Mitchell Kevin J

Insider

109.2K

% of company

0.03%

Change vs last qtr

—

Held since

—

25 more holders behind a free account

See every insider and 5%+ holder of Phillips 66.

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