Kinder Morgan, Inc.

The full register, from 13F filings

The Register tab above is hand research: a dozen holders, each traced to the filing it came from. This asks the same question of the whole market for the quarter ended 31-mar-2026, where 1,803 managers reported a position. Broad where the research is deep, and shallow in the ways a 13F always is.

Built from 13F filings, which report US listed, long, US custodied positions only. A register from this source is a floor rather than a level: a holder's true position can be far larger, as BlackRock's ASML stake shows at 1.28m shares in a 13F against 26.3m in its 13G/A. Holdings held through derivatives, outside US custody, or below a manager's reporting obligation do not appear. Where a holder is marked as a family, its total sums several separate filing entities and describes something no single filing describes; the constituent entities and their share counts are listed so the total can be checked. That roll-up can legitimately exceed the family's own Schedule 13G, because a 13G is filed by one legal entity: Vanguard reports Alphabet through ten advisory entities, and The Vanguard Group Inc itself reported zero after its January 2026 disaggregation.

What a reader needs to know to read these numbers

• Instrument check. All KMI register rows are denominated in KMI's single listed common class, 'Class P common stock' (NYSE: KMI). There is no partnership-unit or LLC-unit structure on the public security itself, unlike some pipeline peers; KMI converted its predecessor MLP/LP structure (KMP, EPB, KMR) into a single C-corp with one common class back in 2014-2015. No shares:null-for-instrument-mismatch case applies to any register row here.
• Equity-method joint ventures counted as holdings. KMI's FY2025 10-K (period ended 31 Dec 2025) is the only filing found with a per-investee ownership percentage and carrying value table; the Q2 2026 10-Q reports just one combined 'Investments' balance sheet line ($7,705 million at 30 Jun 2026, up from $7,532 million at 31 Dec 2025, per the segment balance sheet footnote) with no breakdown by investee. Per the brief's rule against assigning a combined balance to one investee, the 11 holdings rows here use the FY2025 year-end (31 Dec 2025) individually-stated figures rather than any estimate for the Jun 2026 total. The FY2025 10-K equity investments note total across ALL investees, named and unnamed, is $7,532 million, of which $503 million sits in an unnamed 'All others' bucket (excluded from holdings, per the brief) and a further $266 million in EagleHawk (BPX Eagle Ford Gathering LLC) at 31 Dec 2024 dropped to a dash (zero) at 31 Dec 2025, consistent with EagleHawk exiting equity-method treatment (likely consolidation or disposal) during 2025; no EagleHawk row is recorded for 2025.
• NGPL Holdings also carries a $375 million related-party promissory note receivable (6.75% quarterly interest, same balance at 31 Dec 2025 and 2024) alongside the $645 million equity investment; this is a loan, not equity, and is not added to the NGPL holding's value_usd.
• Richard Kinder is the co-founder, former Chairman and CEO (1999-2015), and current Executive Chairman: his 258,086,579-share, 11.60%-of-class stake (as of 16 Mar 2026) is the defining feature of KMI's ownership structure and by a wide margin the largest single holding on this register, institutional or insider. His position includes 40 million shares pledged against a margin loan used to buy additional KMI stock and 11.8 million shares held via a limited partnership he controls but mostly disclaims beneficial interest in (99%).
• Register reconciliation on Vanguard, BlackRock and State Street. KMI's 2026 proxy separately discloses 5%+ holders sourced from each firm's most recent Schedule 13G/A on file: Vanguard 201,371,965 shares (9.05%, per a 13G/A reflecting 30 Sep 2024 ownership, filed 12 Nov 2024), BlackRock 153,167,516 shares (6.88%, per a 13G/A reflecting 31 Dec 2023 ownership, filed 26 Jan 2024), and State Street 127,296,540 shares (5.72%, per a 13G/A reflecting 31 Dec 2023 ownership, filed 30 Jan 2024). These 13G figures are 20 months to 2.5 years stale relative to this register's Q2 2026 13F-HR figures (Vanguard 193,483,299, BlackRock 175,834,246, State Street 130,863,419 shares), so the register uses the fresher 13F data per the brief; the proxy's own 13G-sourced numbers are recorded here only as a cross-check, not used in the register.
• No Schedule 13D or fresh 13G has been filed against KMI common stock since 12 Nov 2024 (Vanguard's 13G/A), per the EDGAR SC 13 filing feed for CIK 0001506307 checked in this task, so the register otherwise leans on 13F-HR data and the proxy's insider table rather than any independent 13D/G position.
• Market cap ($73.08 billion) and share price ($32.08, previous close 14 Aug 2026) are stockanalysis.com figures. Cross-check: 2,226,802,089 shares x $32.08 implies approximately $71.4 billion, moderately below the reported $73.08 billion market cap; the difference is consistent with the aggregator using a more current share count (net of any buybacks/issuance) than the 23 Jul 2026 10-Q cover page figure used here, or index-provider rounding conventions.
• Self-gate check: summing the ten non-aggregate, non-insider institutional register rows (Vanguard, BlackRock, State Street, Bank of America, Geode, Norges Bank, JPMorgan, Morgan Stanley, FMR, Wells Fargo) gives 746,950,387 shares against 2,226,802,089 shares outstanding, or 33.5%. Richard Kinder's row and the officers-group aggregate are excluded from this sum per the gate instructions (Kinder rolls up into the aggregate; the aggregate is itself an aggregate). 33.5% is within the expected 25 to 45 percent range for this register.