Aptiv PLC

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 696 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

• Aptiv PLC is incorporated under the laws of Jersey (Channel Islands), with principal executive offices in Schaffhausen, Switzerland; it is a foreign private issuer that nonetheless files 10-Ks, 10-Qs and DEF 14As with the SEC in the same format as a domestic filer, and this did not change how any figure in this file was sourced.
• Electrical Distribution Systems (EDS) separation: on 1 April 2026 (the Distribution Date) Aptiv completed the spin-off of its former EDS segment into Versigent PLC, a new, independent, separately publicly traded company, by distributing to Aptiv shareholders on a PRO RATA BASIS ALL of the outstanding ordinary shares of Versigent (Q2 2026 10-Q, Note 16 and Note 21). This was a full distribution: Aptiv retains NO equity interest in Versigent, so there is no holdings row for it, per this project's convention that a completed exit with no retained stake is a note, not a null row. Aptiv received a cash distribution of approximately $1.9 billion from Versigent in connection with the separation (used substantially to redeem outstanding Aptiv senior notes) but that is a cash flow, not a retained equity stake.
• shares_outstanding (207,633,331) is taken from the Q2 2026 10-Q COVER PAGE, dated 31 July 2026, which is AFTER the 1 April 2026 Versigent separation and therefore reflects the post-separation share count (down from 212,746,899 issued and outstanding at 31 Dec 2025, pre-separation, per the same 10-Q's balance sheet). All register percentages in this file use this post-separation count; the 2026 DEF 14A's own 5%-owner and management-ownership tables use the older, pre-separation 212,780,960/212,746,899-share basis and are noted as stale where relevant.
• TTTech Auto AG: Aptiv held an equity-method investment that was fully sold (100% of TTTech Auto sold to an unrelated third party) during the three months ended 30 June 2025; the Q2 2026 10-Q confirms 'Following completion of the sale, Aptiv no longer holds an equity interest in TTTech Auto and accordingly reduced the carrying value of the investment to zero.' This is a completed, dated exit and is recorded here as a note with NO row, per this project's convention. A non-cash, pre-tax impairment of approximately $36 million was recorded against this investment in the FY2025 10-K prior to the sale.
• Intercable Automotive Solutions S.r.l.: Aptiv acquired 85% of the equity interests in 2022 and CONSOLIDATES this entity; the remaining 15% is held by a third party under a put/call arrangement exercisable beginning in 2026. This is a NONCONTROLLING INTEREST running the OTHER way (a third party owns a minority stake in an Aptiv-consolidated subsidiary), and per this project's guidance it is explicitly NOT recorded as an Aptiv holding.
• Motional's Q2 2026 carrying values ($222 million common equity, $899 million preferred equity, both per the 10-Q) plus StradVision's $134 million carrying value sum EXACTLY to the consolidated 'investments in affiliates' balance sheet total of $1,255 million at 30 June 2026 (Note 20 / balance sheet). This means Promotora de Partes Electricas Automotrices (40% owned) and any other unnamed smaller equity-method affiliates were immaterial (effectively at or near zero carrying value) at that date; per this project's rule against assigning a combined balance to any one investee, Promotora's value_usd is left null rather than estimated from the residual.
• Aptiv's 'non-publicly traded [technology] investments' bucket totaled $67 million at 30 Jun 2026 ($65 million at 31 Dec 2025), itemized in the 10-Q as: Maxieye $59 million (recorded as a holding above) plus 'Other investments, Various' $8 million, a genuinely COMBINED balance covering an unspecified number of smaller, unnamed investees. Per this project's rule, this $8 million 'Other investments' bucket is NOT assigned to any named investee and is recorded here rather than as a holdings row.
• Register self-gate, computed from this final file exactly as the chart computes it: 13 register rows (Vanguard family, BlackRock, Barrow Hanley Mewhinney & Strauss, State Street, Massachusetts Financial Services, Geode, Nordea, Impax, Invesco, Boston Partners, Capital Group, T. Rowe Price Associates, and the Directors and Officers aggregate), none with rolls_up_into (the officers/directors aggregate has no separately listed members, so it counts at its full stated 1,211,006 shares). Total: 95,420,401 shares against shares_outstanding 207,633,331 = 45.96% of the company. This is a shade above the brief's 'roughly 25% to 45%' typical range but well inside the hard 15% to 55% flag band; every institutional row was implied-price cross-checked (nearly all cluster tightly at approximately $61.38/sh at the 30 Jun 2026 quarter end, with Nordea, Boston Partners and Geode a percentage point or two off and MFS's own sub-account lines internally inconsistent, all noted on their respective rows), and no double-counted holder or units/thousands-scaling error was found; the somewhat elevated total appears to be a genuine feature of Aptiv's concentrated post-separation share count (207.6 million shares, down from 425+ million pre-2023 buybacks/splits context) combined with a large fresh increase in Barrow Hanley Mewhinney & Strauss's position (10.8 million shares in Q2 2026 versus 5.2 million in the Q1 2026 snapshot) amid the stock's sharp year-to-date decline.
• T. Rowe Price Investment Management, Inc. (CIK 0001897612) was checked directly for Q2 2026 and holds NO Aptiv position; recorded here as a checked-and-zero finding rather than a null row, per this project's convention.
• No Schedule 13D has ever been filed against Aptiv (CIK 0001521332). The only Schedule 13G/13G-A filings on record are passive index-manager filings, the most recent dated 4 December 2024 (State Street) and 14 November 2024, both well over a year stale relative to the Q2 2026 13F data used throughout this file; no sovereign, strategic, or activist holder was found.