GetCoattail Research — The Filing Tape #141. Nextpower has been one of the most searched-for stocks on Zacks.com lately, and the filings behind that attention describe a register with exactly one tracked name on it: 1 of the 147 superinvestors held the common stock at June 30, 2026 — Terry Smith - Fundsmith, with a new position of 2,856,092 shares. A quarter earlier the register's only holder was a different manager entirely, Axiom Investors, with 147,341 shares, and it exited. Inside the company, the record is one-sided in the other direction: across 118 Form 4 filings, insiders have recorded 58 sales and not one open-market purchase.
The Hype
Nextpower's attention is search-driven. Zacks reported on October 20, 2026 that the stock "has been one of the most searched-for stocks on Zacks.com lately," with shares returning −4.2% over the past month against +0.7% for the Zacks S&P 500 composite, the Zacks Solar industry down 13.8% over the same period, and a current-quarter consensus earnings estimate of $1.11 per share, down 6.7% from a year earlier. Zacks Our price file tells a starker story: Nextpower slipped just 1.2% in the second quarter, from $120.55 on March 31 to $119.14 on June 30, and has since fallen to $84.30 by October 2 — down 29.2% from the quarter-end close, down 3.2% year to date, up 6.2% from a year ago and 46.1% below its 252-session high close of $156.40, set on May 29, 2026. A solar-equipment supplier whose price has nearly halved from its spring high, drawing search traffic again: the filings answer who holds it, who left, and whether anyone inside the company has ever bought.
The Tape
For Nextpower — the one hundred and forty-first Filing Tape audit — the tape shows a tracked register whose single seat changed hands entirely, a full market that added filers while shedding shares, an insider record with sales and no purchases at all, no congressional row, a passive-only 5% register topped by a 17.6% print, and a borrow that rebuilt by a quarter over the summer.
| Lens | As of | What the filings show | Direction vs prior period |
|---|---|---|---|
| Superinvestors (13F) | Jun 30, 2026 | 1 holder of 147 tracked managers holds 2,856,092 shares; the holder is 100.0% of the tracked stake | Fundsmith NEW 2,856,092 shares; Axiom exited 147,341 shares; register +1,838.4% off a tiny Q1 base |
| All institutions (13F) | Jun 30, 2026 | 721 filers; 153,748,824 shares; reported value $17,783,184,446 | Filers +26; shares −1.50%; reported value −1.55% |
| Insiders (Form 4) | Oct 2, 2026 | Last 90 days: 0 purchases and 9 sales; full record: 0 purchases and 58 sales | No open-market purchase in the full record |
| Congress | Oct 3, 2026 | No row in the combined, House or Senate aggregates | None recorded in these aggregates |
| 13D/G | Aug 6, 2026 | 11 parsed filings (0 SC 13D family, 11 SC 13G family); register maximum 17.6% | Latest filing Aug 6, 2026 prints FMR LLC at 12.4%, as of Jun 30, 2026 |
| Short interest (FINRA) | Sep 15, 2026 | 8,779,581 shares; 4.64 days to cover | Up 23.6% from the Jun 30, 2026 settlement; 33.7% below the series peak |
Lens 1 — the superinvestors: one holder, and it is a new one. We track 149 managers whose 13F portfolios we collect from SEC EDGAR — 147 are in the collection (144 at a June 30 period-end, 3 early filers at September 30, none holding this name at September 30, so there is no period split) — and the June 30, 2026 register for the common stock (CUSIP 65290E101) is 1 distinct manager holding 2,856,092 shares worth $340,274,801, long only, with no option rows: the single row is labelled NEW, and one holder exited during the quarter. Terry Smith - Fundsmith is the register's only holder: 2,856,092 shares worth $340,274,801 — 100.0% of the tracked stake — at a 2.49% portfolio weight, labelled NEW (filed August 14, 2026). There are no continuing holders to verify: the March 31 register was also a single row, Axiom Investors with 147,341 shares (a $17,761,958 position at March 31 values), and Axiom exited in full. The register therefore rose from 147,341 shares to 2,856,092 shares — a change of +1,838.4% that says more about how small the March base was than about the size of the June position, which is why this audit leads with the share counts themselves. The register reconciles with no residual in either quarter. The one common row implies $119.14, the June 30 close (methodology). 13F figures are as of June 30, 2026, published up to 45 days later.
Lens 2 — institutions: more filers, fewer shares. At June 30, 2026, 721 institutions reported positions, up 26 from 695 at March 31 (+3.74%); 716 are long. Reported shares nevertheless fell 1.50% to 153,748,824 (−2,345,345 shares), and reported value fell 1.55% to $17,783,184,446, labelled "reported" because the aggregate includes option rows (methodology), in a quarter when the price fell 1.2%. Flow counts agree (675 entered, 649 exited, net +26), and the single-CUSIP breakdown matches the by-ticker aggregate on every field (methodology). Against that total, the tracked cohort's 2,856,092 shares are 1.86% of reported institutional shares.
Lens 3 — insiders: sales only, across the whole record. The parsed Form 4 record holds 118 filings through October 2, 2026, and its purchase side is empty: 0 open-market purchases by 0 buyers — in the last 90 days, in the last year, and across the full record. The sales side is populated at every horizon: the last 90 days hold 9 sales (100,431 shares for $10,039,534.73, by 5 sellers, 5 of them officer sales); the last year holds 38 sales (473,821 shares for $52,576,786.53, by 9 sellers, 32 of them officer sales); and the full record holds 58 sales (778,282 shares for $70,368,660.98, by 9 sellers, 51 of them officer sales). The sales imply $99.96 per share over the last 90 days, $110.96 over the last year and $90.42 across the full record — every cited sales figure sits inside its window's close range (methodology). The site's insider aggregate, on a later window, records the same 90-day sales counts and values (methodology).
Lens 4 — Congress: no row. The combined aggregate (as of October 3, 2026), the House aggregate (same date) and the Senate aggregate (as of October 1, 2026) each carry no row for this name — an absence of any row, not a count of zero trades asserted from one.
Lens 5 — the 5% register: eleven passive filings, maximum 17.6%. Our full parse holds 11 SC 13D/G filings matching the site aggregate exactly — 0 SC 13D family and 11 SC 13G family (2 SC 13G, 9 amendments); 6 reporter names across 16 rows. The maximum is BlackRock, Inc. at 25,229,536 shares and 17.6% as of December 31, 2024 (filed February 5, 2025, SC 13G/A). The latest is FMR LLC at 18,749,214.57 shares and 12.4% as of June 30, 2026 (filed August 6, 2026, SC 13G/A), and BlackRock also prints 17,841,627 shares and 11.9% as of the same June 30 date (filed July 29, 2026). FMR's prints are co-reported with Abigail P. Johnson, and one file, from The Vanguard Group, prints 0 shares (methodology).
Lens 6 — short interest: rebuilt over the summer, still below the peak. The latest FINRA settlement, September 15, 2026, records 8,779,581 shares sold short at 4.64 days to cover, down 2.17% from the prior settlement. The series peak across all 87 settlements is 13,245,821 shares, set on September 30, 2024, so the latest reading sits 33.7% below that peak; it is also 23.6% above the June 30, 2026 settlement (7,103,121 shares) and 0.6% above the year-ago settlement (8,728,185 shares on September 15, 2025). The recent path runs 7,103,121 (June 30), 7,205,710 (July 15), 8,352,752 (July 31), 8,868,912 (August 14), 8,974,036 (August 31) and 8,779,581 (September 15) — four rises in a row, then a small fall. The only steps of 2x or more in the series are two settlements in its first seven weeks after the February 2023 listing, and no step falls to half (methodology).
The Gap
The narrative arriving this week is a search-and-estimates one: a most-searched solar name whose consensus estimate has been trimmed, after a month in which it trailed the index by less than its industry did. The June tape shows a thinner register than that attention suggests. The tracked cohort has exactly one member, and it arrived this quarter: Fundsmith's 2,856,092-share position is new, the previous sole holder is gone, and no other tracked manager — of 147 — holds a single common share. The broad market is broader but not bigger: 26 more filers reported, yet the shares they reported fell 1.50% and the reported value fell with them. Inside the company there is no counterweight at all: 58 recorded sales and zero purchases is not a mixed insider record, it is an empty one on the buy side, at every horizon we can measure. The 5% register is passive and top-heavy — two managers print above 11% as of June 30 — and the borrow rebuilt 23.6% over the summer even as the price fell 29.2% from the quarter-end close, though it remains 33.7% below its September 2024 peak. One plausible reading is that the filings describe sponsorship that is narrow and recent rather than broad and settled: one tracked buyer, no insider buyers ever, and a rising borrow against a falling price.
What Would Change the Picture
Nothing above is a recommendation. These filings would change it:
- 1. The 2026Q3 13F season (filing window closing mid-November 2026). The tracked baseline is a single position: Fundsmith's 2,856,092 shares. Whether Fundsmith adds to or trims a position it opened in Q2, whether Axiom Investors reappears after its Q2 exit, and whether any second tracked manager appears at all would each change this lens — with one holder, any of those moves rewrites it.
- 2. A first insider purchase. The parsed record holds 0 purchases against 58 sales. Any open-market purchase, by any insider, would be the first in the record and would change this lens from empty to populated; another quarter of sales only would extend the streak.
- 3. A first congressional row. The combined, House and Senate aggregates all carry no row for this name. Any recorded purchase or sale, in either chamber, would change this lens from blank to populated.
- 4. A first SC 13D filing, or a new 5% print above 17.6%. The register's 11 filings are all SC 13G family, and its latest prints have FMR LLC at 12.4% and BlackRock, Inc. at 11.9%, both as of June 30, 2026. A first activist-form filing, or any print above BlackRock's 17.6% maximum, would change this lens.
- 5. Short interest back below the June 30 settlement, or above the August 31 reading. The borrow stands at 8,779,581 shares, 23.6% above the June 30, 2026 settlement of 7,103,121 after four straight rises and one small fall. A reading back below 7,103,121 would unwind the summer build; a reading above 8,974,036 would extend it.
Related reading: Seven of 147: Lone Pine Exited Vistra in Q2. Its CEO Bought Three Times in August and September.; Fifteen of 147: TCI Is 81.6% of the Superinvestors' GE Aerospace Stake. Its Insiders Have Never Bought a Share.. Nextpower's own page: Nextpower (NXT) on GetCoattail.
Methodology and data notes
- As-of & limits: The lenses rest on different clocks, none live: 13F is a June 30, 2026 snapshot published up to 45 days later; Form 4 runs through October 2, 2026; Congress aggregates run through October 3, 2026 (Senate through October 1, 2026); 13D/G through August 6, 2026; short interest through September 15, 2026; the price file ends October 2, 2026. Seven limits are specific to this audit. First, the roster expanded before the recent audits — from 85 managers (83 filing) to 149 (147 filing) — so "of 147" counts are not comparable to earlier pieces' "of 83" figures. Second, this name carries no period split in its headline count — its single tracked common-stock holder sits on a June 30, 2026 period-end and none of the three September 30, 2026 early filers holds this name — and the register reconciles exactly: the March 31 register (147,341 shares) is the exited holder's position alone, and the June 30 register (2,856,092 shares) is the one new holder's position alone, with no continuing holders, as detailed in Lens 1. The +1,838.4% register change is printed with its base wherever it appears, because the March base is a single small position. Third, the full-market aggregate for this issuer rests on a single CUSIP line (CUSIP 65290E101), and the by-CUSIP row matches the by-ticker aggregate on every field; its implied price of $115.66 sits 2.92% below the June 30 close of $119.14 because the reported aggregate includes option rows, which is why share counts, not reported value, are this audit's primary institution measure. Fourth, the insider record's buy side is empty at every horizon, so there is no insider purchase price to check; every sales figure cited sits inside its window's close range (90-day sales imply $99.96 against a $77.93–$115.03 close range; one-year $110.96 against $77.13–$156.40; full record $90.42 against $28.55–$156.40). The site's 90-day insider aggregate (dated October 20, 2026) records the same counts, seller counts and values as the full parse's 90 days to October 2, 2026 (that file carries no share-count field, so share counts are not part of that comparison). Fifth, the 5% register's cross-date share total of 215,249,336.82 sums prints from different dates and is not a current stake; within it, FMR LLC and Abigail P. Johnson co-report the same position in each of FMR's five filings (each such filing contributes two reporter rows with identical share counts, and each of FMR's prints carries a fractional share count as filed), and one file — The Vanguard Group at 0 shares and 0.0% as of March 13, 2026 (filed March 27, 2026, SC 13G/A) — is keyed to the same CUSIP, so it sits inside the aggregate by definition and changes neither the maximum nor the economics of the register; the parsed total matches the aggregate total exactly. Sixth, the short-interest series begins at this issuer's February 2023 listing (first settlement February 15, 2023, whose source row prints a prior-settlement value of 0); its only steps of 2x or more are two settlements in its first seven weeks (3.083x at February 28, 2023 and 2.819x at March 31, 2023), no step falls to one-half (smallest 0.754x at the October 31, 2025 settlement), no row in the series carries a split or revision flag, and our price file records no split entries for this name, so settlements across the full series are compared directly. The issuer-name field changes spelling across the series — "Nextracker Inc. Class A Common" for 66 settlements, "Nextpower Inc. Class A Common" for 19 and "Nextpower Inc. Common Stock" for 2 — all for this issuer (CIK 1852131) across its name change, on a single market class (NNM) throughout. Against the share count in our fundamentals file — 136,542,423 shares outstanding dated January 31, 2024 — the latest borrow is 6.43%; that denominator is dated and older than the recent 5% prints imply, so this audit does not present it as a current share-count percentage and uses share counts and days to cover as its short-interest measures. Seventh, the Congress lens is an absence, stated as such: none of the three aggregates carries a row for this issuer, so this audit makes no count claim about congressional trading beyond that absence. The single tracked common-stock 13F row implies the June 30 close of $119.14 exactly. The company's fundamentals as collected print fiscal 2026 revenue of $3,559,390,000, net income of $585,883,000 and assets of $4,073,212,000 (fiscal year ended March 31, 2026), with 136,542,423 shares outstanding as of January 31, 2024; those figures are reported as collected and are not used in any lens above. Every price statement here is mechanical, a date and a close from our price file. The Zacks report (published October 20, 2026) postdates the 13F snapshot and the short-interest series; its search-list status, one-month return, industry return and consensus estimate are reported as outlet content in The Hype, and no other figure from it is cited.
- Market context sources: Zacks, "Is Trending Stock Nextpower Inc. (NXT) a Buy Now?", published October 20, 2026 (Nextpower on Zacks.com's list of most searched stocks; shares −4.2% over the past month against +0.7% for the Zacks S&P 500 composite; Zacks Solar industry −13.8% over the period; current-quarter consensus EPS estimate $1.11, −6.7% year over year). Figures we could not confirm were left out; the external items above are reported speech from that outlet, not GetCoattail measurements.
- Nextpower is in the GetCoattail stock-page universe: Nextpower (NXT) stock page. Series data: nxt_lens_data.csv · nxt_short_interest_series.csv. Earlier audits: Vistra · GE Aerospace.
Past patterns are not a promise of future results. For education only — not investment advice.
This article describes public filings as of the dates stated. It is not investment advice and makes no recommendation. Filings lag reality: 13F positions are as of June 30, 2026, and later trading is not yet public.
Revision history: v1.0 — October 21, 2026: first publication.