RESEARCH — THE FILING TAPE #149

Three of 147: Two New Holders Are 61.9% of the Tracked American Airlines Stake. Its Insiders Have Never Bought a Share.

October 21, 2026

GetCoattail Research — The Filing Tape #149. American Airlines reports third-quarter results on October 22, and the stock rose 3.68% on October 20. The June filings show a tracked register rebuilt in one quarter: two of its three holders are new and hold 61.9% of the stake, its insiders have never bought a share in the parsed record, and the borrow has risen at five straight settlements.

The Hype

The attention is an earnings eve. American Airlines announced on October 1, 2026 that it will webcast its third-quarter results call on October 22 at 7:30 a.m. CT. American Airlines / GlobeNewswire Zacks' preview, published October 20, puts the report before the market open on October 22, with a consensus loss of 28 cents a share, revenues projected to rise 18.35% to $16.20 billion, and company guidance at a loss of 70 cents to 10 cents a share. Zacks The stock moved before the print: it last traded at $12.11 on October 20, up 3.68% from the previous close of $11.68, and the TrendEdge trending list checked October 21 carried it third, at +3.7% on volume of 59,791,174 shares, as airline shares rallied on a pullback in crude oil (methodology). Two weeks earlier, Reuters reported American intends to install SpaceX's Starlink satellite internet on its entire mainline fleet of over 1,000 aircraft from next year. Reuters Our own price file, which ends on October 2, tells the path into this week: the stock rose 68.2% in the second quarter, from $10.74 on March 31 to $18.07 on June 30, then closed at $12.94 on October 2 — down 28.4% from June 30 and 15.6% year to date. The filings answer who held it through that round trip.

The Tape

For American Airlines — the one hundred and forty-ninth Filing Tape audit — the tape shows a three-holder tracked register rebuilt by two genuine new entrants, a full market that added filers and shares, an insider record of sales with no purchases, no congressional row, a 5% register of just four passive filings, and a borrow up at five straight settlements.

LensAs ofWhat the filings showDirection vs prior period
Superinvestors (13F)Jun 30, 20263 holders of 147 tracked managers hold 21,729,430 shares; filed labels: 2 new, 1 increasedRegister-verified continuing holder vs Q1: +27.9%; register total +235.8% on two genuine new entrants
All institutions (13F)Jun 30, 2026593 filers; 515,272,039 shares; reported value $11,538,812,406Filers +21; shares +35.43%; reported value +92.02%
Insiders (Form 4)Oct 2, 2026Last 90 days: 0 purchases and 7 sale-coded rows worth $3,474,616.41; full record: 0 purchasesSales only, in every window
CongressOct 3, 2026No row in the combined, House or Senate aggregates, and no row in the House member fileNo congressional trade recorded in the collections
13D/GJun 5, 20264 parsed filings (0 SC 13D family, 4 SC 13G family); register maximum 10.46%Latest filing, Jun 5, 2026, is a PRIMECAP amendment as of May 31, 2026
Short interest (FINRA)Sep 15, 202691,609,119 shares; 1.45 days to cover; 13.84% of the share countUp 58.3% from the Jun 30, 2026 settlement; rose at each of the last five settlements

Lens 1 — the superinvestors: three holders, two of them new, and the new labels check out. The collection holds 147 managers (144 at June 30; 3 early filers at September 30, none holding this name). The June 30, 2026 register is 3 distinct managers holding 21,729,430 shares worth $392,650,800, long only, with no option rows. As filed, the labels read 2 NEW and 1 INCREASED — and this audit tested the new labels rather than taking them on trust (methodology). Slate Path Capital is the largest holder: 8,276,584 shares worth $149,557,873 — 38.1% of the tracked stake — at a 2.07% weight, labelled INCREASED. That label verifies by two pairing methods: Slate Path rose from 6,471,684 shares at March 31 to 8,276,584, a rise of 27.9%. David Tepper - Appaloosa Management holds 7,500,000 shares (34.5% of the cohort, a 1.75% weight) and Harry Burn - Sound Shore holds 5,952,846 shares (27.4%, a 3.31% weight), both labelled NEW. Appaloosa's first-quarter filing is uniquely identified and contains no row for this name; Sound Shore's filing-agent prefix is shared, so its own first-quarter filing cannot be isolated — but the first-quarter register for this CUSIP holds exactly one row, Slate Path's 6,471,684 shares, leaving no room for a hidden first-quarter holding by either entrant (methodology). Together the two new holders hold 13,452,846 shares, 61.9% of the June cohort. No holder exited, and both registers reconcile: the register total rose 235.8%, from 6,471,684 shares to 21,729,430, and the gap between that figure and the verified continuing holder's +27.9% is, share for share, the two entrants. The June register implies $18.07, the June 30 close exactly. 13F figures are as of June 30, 2026, published up to 45 days later.

American Airlines through six filing lenses
Chart 1: Signal presence by cohort (n = 3 superinvestor holders among 147 managers, at Jun 30, 2026, long only; no option rows; no September 30, 2026 early filer holds this name). Superinvestors: 2026Q2 13F collection, as of Jun 30, 2026. Institutions: full-market 13F aggregation, Jun 30, 2026 (n = 593 filers). Insiders: Form 4 through Oct 2, 2026 (n = 79 filings). Congress: PTR aggregates through Oct 3, 2026 (Senate through Oct 1, 2026) — no row for this name. 13D/G: parsed filings through Jun 5, 2026 (n = 4 filings). Short interest: FINRA settlements through Sep 15, 2026 (n = 137 settlements, symbol AAL only). Source: SEC EDGAR; FINRA; GetCoattail collections.

Lens 2 — institutions: more filers, 35.43% more shares, and a reported value that needs care. At June 30, 2026, 593 institutions reported positions on the name's single CUSIP, up 21 from 572 at March 31 (+3.67%); 574 are long. Reported shares rose 35.43% to 515,272,039 (+134,811,948 shares), and reported value rose 92.02% to $11,538,812,406, labelled "reported" because the aggregate includes option rows (methodology). Flow counts agree (551 entered, 530 exited, net +21), and the single-CUSIP aggregate matches the by-ticker total on every field. One caution belongs in the text: the aggregate implies $22.39 against the $18.07 close, a gap of 23.93% — last quarter it implied $15.79 against a $10.74 close, a gap of 47.07% — so this audit reads this lens by filer and share counts (methodology). At 4.22% of reported institutional shares, the tracked cohort is a sample, not the register itself.

Lens 3 — insiders: sales in every window, a purchase in none. The parsed Form 4 record holds 79 filings through October 2, 2026. The last 90 days hold 8 filings with no open-market purchase and 7 sale-coded rows across 229,245 shares worth $3,474,616.41, by 2 sellers — all 7 of them officer rows. The last year holds no purchase either, against 11 sale-coded rows across 443,146 shares worth $7,017,674.77, by 3 sellers, again all officer rows. Across the full record: 0 purchases by 0 buyers, against 12 sale-coded rows worth $7,907,987.24, by 3 sellers. The sale rows imply $15.16 over 90 days, $15.84 over one year and $15.97 over the full record, each inside its close range in our price file (methodology).

Lens 4 — Congress: no row anywhere. The combined and House aggregates (as of October 3, 2026) and the Senate aggregate (as of October 1, 2026) each carry no row for this name, and the House member file records no member with an American Airlines position line. This lens is blank in a specific sense: no transaction appears in the congressional collections as collected, which is an absence of a row, not a verified count of zero trades (methodology).

Lens 5 — the 5% register: four filings, all passive, and the maximum is the latest filing. Our full parse holds 4 SC 13D/G filings — 0 SC 13D family and 4 SC 13G family, 3 of them amendments; 3 reporter names across 4 rows. The maximum print is also the latest filing: PRIMECAP MANAGEMENT CO/CA/ at 69,186,424 shares and 10.46% as of May 31, 2026 (filed June 5, 2026, SC 13G/A); its prior print was 49,641,939 shares and 7.52% as of September 30, 2025. Vanguard Capital Management printed 33,750,505 shares and 5.11% as of March 31, 2026, while The Vanguard Group itself filed 0 shares as of March 13, 2026.

Lens 6 — short interest: up at five straight settlements, and up 58.3% since June 30. The latest FINRA settlement, September 15, 2026, records 91,609,119 shares sold short at 1.45 days to cover — 13.84% of the share count in our fundamentals file (methodology) — up 21.34% from the prior settlement and 58.3% above the June 30, 2026 settlement (57,852,431 shares). The borrow rose at each of the five settlements after June 30: 57,852,431 (June 30), 63,578,122 (July 15), 64,120,117 (July 31), 64,750,222 (August 14), 75,497,100 (August 31) and 91,609,119 (September 15). It remains 40.0% below the series maximum of 152,632,087 shares — but that maximum is the series' first settlement, January 15, 2021, so the distance from the peak is a five-year comparison, not a recent retreat (methodology).

Short interest in American Airlines
Chart 2: Shares sold short in AAL at each FINRA biweekly settlement, Jan 15, 2021 – Sep 15, 2026 (n = 137 settlements, symbol AAL only; the issuer-name field reads "American Airlines Group Inc. C" throughout, on a single market class, NNM). The series maximum is 152,632,087 shares at its first settlement (Jan 15, 2021), and the latest reading of 91,609,119 shares (Sep 15, 2026) is 40.0% below it, 27.0% above the year-ago settlement and 58.3% above the Jun 30, 2026 settlement, having risen at each of the five settlements since Jun 30. The series holds no step of 2x or more and no step to one-half or less (largest step 1.564x at May 31, 2024; smallest 0.638x at Jan 29, 2021), no split-flagged row, and two revision-flagged rows. Source: FINRA Equity Short Interest files; GetCoattail collection (aal_short_interest_series.csv).

The Gap

The narrative arriving this week is an earnings eve with a lowered bar: a consensus loss, a report due before Thursday's open, a one-day rise of 3.68% as oil pulled back, and a Starlink plan. The June tape — the most recent complete holdings picture — shows a tracked register rebuilt during the very quarter the price rose 68.2%. Two of its three holders were not there in March at all: their new labels survive both the per-manager audit and the register check, and their 13,452,846 shares are 61.9% of the cohort. The one continuing holder added 27.9%. The full market moved the same way on shares — up 35.43%, with 21 more filers — though its reported value, up 92.02%, overstates the move in a way the implied price exposes (methodology). The price gave back 28.4% by October 2, and over the same stretch the borrow rose at every settlement, from 57,852,431 shares at June 30 to 91,609,119 at September 15 — a 58.3% build while the stock fell. The insider record through October 2 is one-directional as a record: 12 sale-coded rows across the full parse and not one open-market purchase, ever, in the data we hold. Congress records nothing at all. The 5% register holds just four passive filings, and its largest holder, PRIMECAP at 10.46%, raised its print between September 2025 and May 2026. One plausible reading is that the June quarter's new money and the summer's growing borrow are two sides of the same repricing: the register added holders into a rising price, and the borrow built as the price came back down.

What Would Change the Picture

Nothing above is a recommendation. These filings would change it:

Related reading: Two of 147: One Holder Is 51.3% of the Tracked Braze Stake. Its Insiders Have Never Bought a Share.; Seven of 147: Viking Is 65.5% of the Tracked Boeing Stake — Labelled New, It Held 3,196,041 Shares in Q1. American Airlines' own page: American Airlines (AAL) on GetCoattail.

Methodology and data notes

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.

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