PTC 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 682 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

• Holdings side: the newest 10-K (FY2025, period ended 30 Sep 2025, filed 21 Nov 2025) and the newest 10-Q (Q3 FY2026, period ended 30 Jun 2026, filed 31 Jul 2026) were both searched in full with scripts/filing.py for 'equity method', 'equity investments', 'non-marketable equity', 'unrealized gain', 'joint venture', 'cost method', 'investments in affiliates', 'variable interest entity', 'strategic investment', 'Matterport', and 'CoStar'. Because PTC's fiscal year ends 30 September, the 30 Jul 2026 10-Q postdates the 21 Nov 2025 10-K by about 8 months and was correctly identified as the newest filing overall, not the FY2025 10-K.
• The unverified lead that PTC holds a minority stake in Matterport (potentially now CoStar Group shares after CoStar's acquisition of Matterport) is DISCARDED: 'Matterport' and 'CoStar' return zero hits in both the FY2025 10-K and the Q3 FY2026 10-Q, and neither document discloses any equity-method or non-marketable equity securities of any kind as of either balance sheet date (30 Sep 2025 or 30 Jun 2026). No row for Matterport or CoStar is carried forward.
• The FY2025 10-K's Exhibit 21 subsidiaries list was checked: it is a bare jurisdiction/name list with no ownership-percentage column, and every entity reads as a wholly owned operating subsidiary (Parametric Technology entities in dozens of countries, PTC Foundation, etc.). Genuine negative, not evidence of looking in the wrong place.
• The only equity-investment-shaped disclosure found anywhere in the two filings is the Q3 FY2026 10-Q's 'Strategic Solar Energy Equity Investment' (see holdings): a $184.7 million tax-equity commitment in an unnamed solar project, structured as a VIE PTC does not consolidate, with a $113.1 million unamortized balance as of 30 Jun 2026. This is closer to project/tax-equity finance than a conventional minority stake in an operating company, but is included per the brief's instruction to search for and report anything surfacing under 'equity investment' and 'variable interest entity'.
• Register: the strategic-holder lead was confirmed via SC 13D history rather than the current DEF 14A or the 31 Mar 2026 13F-derived register snapshot (data/registers/PTC.json), neither of which currently shows Rockwell Automation. Rockwell took a $1.0 billion, 10,582,010-share strategic stake in PTC in July 2018 alongside a commercial Strategic Alliance Agreement, sold down over several years, and filed an exit Schedule 13D/A on 1 Aug 2023 upon dropping below 5% (last disclosed: 5,910,905 shares, 4.99%). No later 13D/13G/13F exists, so the row is carried at shares: null / confidence: unsized rather than guessed; see its method_note for the full chain.
• T. Rowe Price is checked as two separate registrants per the project's instruction (Investment Management, Inc. CIK 0001897612, and Associates, Inc. CIK 0000080255); both hold PTC, in very different sizes (13.0m vs 1.2m shares). Both entities' Q2 2026 13F-HR filings report position VALUE IN THOUSANDS; this was caught via the implied-price cross-check (all rows land within a tight $113.60-113.67/sh band as of 30 Jun 2026) and corrected before writing this file.
• Capital Group was explicitly checked and found to hold NOTHING in PTC as of Q2 2026: all three registrants named in the project brief (Capital World Investors CIK 0001422849, Capital International Investors CIK 0001562230, Capital Research Global Investors CIK 0001422848) were independently fetched and none has a row for CUSIP 69370C100 in their Q2 2026 13F-HR information tables. This is recorded as a checked negative, not a row, per the project's rule that a holder checked and found at zero is a note, never a null row.
• Vanguard: parent CIK 0000102909 filed Form 13F-NT (no holdings) for Q2 2026, confirmed directly, so the successor-entity sum is the position per the project's rule. All 8 entities named in data/registers/PTC.json's Vanguard family were individually re-fetched from their own Q2 2026 13F-HR information tables (never taken from the register snapshot's share numbers); Vanguard National Trust Co held zero PTC shares this quarter. See the Vanguard row's method_note for every entity, CIK, share count and value.
• Janus Henderson Group PLC (CIK 0001274173), which appears in data/registers/PTC.json at 3,530,070 shares (31 Mar 2026 snapshot, not used for figures per project rule), was checked directly: no Q2 2026 (period 30 Jun 2026) 13F-HR has been filed under this CIK as of the report date (its most recent filing is a 13F-HR/A dated 18 May 2026, covering Q1 2026). Rather than use stale Q1 data or the register snapshot's number, this holder is omitted from the register and flagged in unknowns.
• Implied-price cross-check: every register row's value/shares ratio (after the T. Rowe thousands correction) falls between $113.60 and $113.67 per share as of the 30 Jun 2026 quarter-end, which is internally consistent and gives confidence in the figures.
• PTC repurchased approximately $1,326 million of common stock in the first nine months of FY2026 (per the Q3 FY2026 10-Q's cash flow discussion), which materially shrank shares outstanding from about 119.5 million (30 Sep 2025) to 108,506,261 (29 Jul 2026, the cover-page figure used here). This explains why percentages computed against the current share count differ noticeably from the same institutions' percentages as quoted in the Dec 2025 DEF 14A (which uses a Nov 2025 denominator); every register row here recomputes pct_of_company against the current 108,506,261 figure.
• The DEF 14A's 'all directors and executive officers as a group (15 persons)' totals only 345,136 shares (under 1% of the company); PTC has no dual-class structure and no founder or director individually approaches a reportable size (CEO Mark Benjamin: 9,683 shares). This insider total is immaterial and is not carried as a register row.
• Self-gate (computed on this final file, following the project's chart formula: no rows here are aggregates with rolled-up members, so every row counts at full value): 10 register rows, total shares summed = 58,580,295 (Rockwell contributes 0 since its shares field is null), 58,580,295 / 108,506,261 = 53.99% of the company. This is just under the brief's 55% ceiling; PTC has unusually concentrated, heavily institutional ownership (the top 3 alone, T. Rowe IM + Vanguard + BlackRock, are already about 36%), which is consistent with the company's small float after the FY2026 buyback program.
• Rockwell Automation ROW REMOVED 20 Aug 2026, and this is a correction rather than a trim. This file previously carried Rockwell Automation, Inc. as a strategic holder with shares: null, on the reasoning that its Aug 2023 Schedule 13D/A was only an exit from FIVE PER CENT reporting and that the residual position was therefore real but unsized. That reasoning was wrong, and the counterparty's own filing settles it: Rockwell's FY2025 Form 10-K states plainly 'As of September 30, 2023, all PTC Shares had been sold'. Rockwell holds ZERO PTC shares, not an unknown quantity. In this database null means NOT SIZED, so a null row rendered a completed, dated exit as 'current holder, size unknown', which is the opposite of the truth. That is the documented defect already corrected on Nasdaq (Thoma Bravo carried at null after a full exit) and Snap-on (Capital Group carried at null after being checked at zero), and the rule it produced: a holder that holds nothing is a NOTE, not a row. The history is preserved because it is worth knowing: on 19 July 2018 Rockwell bought 10,582,010 PTC shares at $94.50, a $1.0 billion strategic investment made alongside a Strategic Alliance Agreement integrating PTC's ThingWorx and Kepware with Rockwell's FactoryTalk platform; it reported 7,622,238 shares (6.45%) at 14 Feb 2023 and 5,910,905 (4.99%) at 1 Aug 2023, and had sold the remainder by 30 Sep 2023. The stake is gone; the commercial alliance is a separate matter and is not an equity holding. Found by scripts/reverse_edges.py, which compares a register's corporate holders against those holders' own files.