Cross-institution positioning
Sep 3, 2026Reduction leaning. 1 exited across 1 comparable institution.
Source: Schedule 13 researchSIRIUS XM HOLDINGS INC.
Latest stored close $26.51 as of Oct 9, 2026 View live quote ↗
See how each tracked institution's reported ownership changed across SEC position dates. Full history is available with Investor or Pro access.
What the evidence shows across the newest institutional, insider, company-event, 13F, fundamental, and price data; STOCKNODE combines these layers into a quantitative research signal while preserving each source and reporting window.
Reduction leaning. 1 exited across 1 comparable institution.
Source: Schedule 13 research2 increased/new, 0 reduced/exited across 2 managers in the latest comparable Form 13F quarter.
Source: Form 13F quarter-end holdingsOver the last 90 days, SEC-coded non-derivative P/S activity includes 0 purchases by 0 reporting owners and 1 sale by 1 reporting owner. Amendments are shown in the filing evidence but excluded from rolling activity totals.
Source: SEC Forms 3/4/53 non-amendment material events in the last 90 days; 1 capital-related filing/event (1 equity-related, 0 debt-related); Latest classified evidence: Employee-plan securities registration. Registration and prospectus filings are treated as financing capacity/disclosure evidence, not proof that securities were sold.
Source: SEC 8-K / securities filing metadataRevenue +1.0% YoY; Net income +16.6% YoY. Periods are compared only when the SEC facts are aligned and comparable.
Source: SEC Company FactsRecent close is 76% through its reported 52-week range; +25.9% over one year.
Source: Stored historical price seriesFiled Sep 3, 2026. Unlock the dated position comparison, disclosure classification, confidence, price context, and filing-specific significance analysis.
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The research summary above gives the current read. This section shows the dated holder-level evidence behind it.
See each institution's newest reported position against its own prior report, with position as-of date separated from SEC filed date. Institution names and filing freshness remain public below.
Comparable holder direction grouped by SEC position as-of date — never presented as trade dates.
Compare each institution only with its own prior reported position. Public visitors can see who is tracked and how fresh the filing is; paid research reveals the actual comparison.
Investor and Pro reveal holder-by-holder changes, reported ownership history, dated breadth, disclosure timing, institution comparison, and filing-specific analysis without treating Schedule 13 reports as trade dates.
Reported Section 16 ownership activity. Rolling purchase/sale totals use non-derivative SEC transaction codes P and S only; amendments remain visible but are excluded from those totals.
| Date | Reporting owner | Code | Security | Shares | Price | Ownership | Filed |
|---|---|---|---|---|---|---|---|
| Sep 9, 2026 | HARTENSTEIN EDDY W | GGift | Common Stock | 8.2K | $0.00 | Indirect | Sep 10, 2026 |
| Sep 9, 2026 | HARTENSTEIN EDDY W | GGift | Common Stock | 8.2K | $0.00 | Direct | Sep 10, 2026 |
| Aug 26, 2026 | Coughlin Zachary | AGrant, award, or other acquisition | Common Stock | 2.6K | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | Greenstein Scott Andrew | AGrant, award, or other acquisition | Common Stock | 177 | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | HARTENSTEIN EDDY W | AGrant, award, or other acquisition | Common Stock | 60 | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | MAFFEI GREGORY B | AGrant, award, or other acquisition | Common Stock | 60 | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | Rapino Michael | AGrant, award, or other acquisition | Common Stock | 60 | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | Salen Kristina | AGrant, award, or other acquisition | Common Stock | 60 | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | MALONE EVAN DANIEL | AGrant, award, or other acquisition | Common Stock | 60 | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | Mothner Eve | AGrant, award, or other acquisition | Common Stock | 1.5K | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | Stephenson Dave | AGrant, award, or other acquisition | Common Stock | 60 | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | Procope Jonelle | AGrant, award, or other acquisition | Common Stock | 60 | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | Sud Anjali | AGrant, award, or other acquisition | Common Stock | 60 | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | Witz Jennifer C | AGrant, award, or other acquisition | Common Stock | 1.4K | $0.00 | Direct | Aug 28, 2026 |
| Aug 26, 2026 | Zaslav David | AGrant, award, or other acquisition | Common Stock | 60 | $0.00 | Direct | Aug 28, 2026 |
| Aug 6, 2026 | Procope Jonelle | SOpen-market or private sale | Common Stock | 16.7K | $29.97 | Direct | Aug 7, 2026 |
| Jul 13, 2026 | HARTENSTEIN EDDY W | GGift | Common Stock | 6.7K | $0.00 | Indirect | Jul 14, 2026 |
| Jul 13, 2026 | HARTENSTEIN EDDY W | GGift | Common Stock | 6.7K | $0.00 | Direct | Jul 14, 2026 |
| May 29, 2026 | Zaslav David | AGrant, award, or other acquisition | Common Stock | 6.8K | $0.00 | Direct | Jun 2, 2026 |
| May 29, 2026 | Sud Anjali | AGrant, award, or other acquisition | Common Stock | 6.8K | $0.00 | Direct | Jun 2, 2026 |
Recent 8-K item classifications plus securities registration and prospectus filings. Registration or prospectus filings show financing capacity/disclosure activity; they do not by themselves prove that securities were sold.
| Filed | Form | 8-K item(s) | Classification | Capital context | SEC |
|---|---|---|---|---|---|
| Jul 30, 2026 | S-8 | — | Employee-plan securities registration | Equity | Filing |
| Jul 30, 2026 | 8-K | 2.02, 7.01, 9.01 | Results of operations / financial condition; Regulation FD disclosure; Financial statements / exhibits | — | Filing |
| Jul 30, 2026 | 8-K | 5.02, 9.01 | Director or executive change; Financial statements / exhibits | — | Filing |
| Jun 1, 2026 | 8-K | 5.02, 5.07, 9.01 | Director or executive change; Shareholder vote results; Financial statements / exhibits | — | Filing |
| Apr 30, 2026 | 8-K | 2.02, 7.01, 9.01 | Results of operations / financial condition; Regulation FD disclosure; Financial statements / exhibits | — | Filing |
| Mar 10, 2026 | 8-K | 8.01 | Other event | — | Filing |
| Mar 5, 2026 | 8-K | 1.01, 2.03, 8.01, 9.01 | Material definitive agreement; New direct financial obligation; Other event; Financial statements / exhibits | Debt | Filing |
| Mar 4, 2026 | 8-K | 8.01, 9.01 | Other event; Financial statements / exhibits | — | Filing |
| Feb 27, 2026 | 8-K | 8.01, 9.01 | Other event; Financial statements / exhibits | — | Filing |
| Feb 26, 2026 | 8-K | 8.01, 9.01 | Other event; Financial statements / exhibits | — | Filing |
| Feb 5, 2026 | 8-K | 2.02, 7.01, 9.01 | Results of operations / financial condition; Regulation FD disclosure; Financial statements / exhibits | — | Filing |
| Jan 29, 2026 | 8-K | 5.02, 7.01, 9.01 | Director or executive change; Regulation FD disclosure; Financial statements / exhibits | — | Filing |
Period-aligned SEC facts. Comparisons appear only when periods and units are comparable.
| Period | Revenue | YoY |
|---|---|---|
| Ended Jun 30, 2026 | $2.2B | +1.0% |
| Ended Mar 31, 2026 | $2.1B | +1.1% |
| Ended Sep 30, 2025 | $2.2B | -0.6% |
| Ended Jun 30, 2025 | $2.1B | -1.8% |
| Period | Revenue | YoY |
|---|---|---|
| Ended Dec 31, 2025 | $8.6B | -1.6% |
| Ended Dec 31, 2024 | $8.7B | -2.8% |
| Ended Dec 31, 2023 | $9.0B | -0.6% |
| Ended Dec 31, 2022 | $9.0B | +3.5% |
Dated price context from the historical market series already collected for this security.
Returns are close-to-close price changes. Volatility and drawdown are factual historical context, not recommendations.
Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred from changes in reported shares when available; it is not a list of individual trades or exact execution prices.
Form 13F rows are quarter-end holding context only and do not establish an exact entry date.
For more context, see how to read a Schedule 13G, filing date vs event date, or Schedule 13G vs Schedule 13D.
| Holder | Observed / filed | Reported change | Shares | Ownership | Observation | Filing | Latest |
|---|---|---|---|---|---|---|---|
| Vanguard Group CIK0000102909 | Mar 13, 2026 observed Sep 3, 2026 filed · 174d Schedule 13G amendment | Exit below reporting threshold | 0 -11 | 0.00% -12.00 pts | $21.99 | $29.96 | $26.51 |
| Vanguard Group CIK0000102909 | Mar 13, 2026 observed Mar 27, 2026 filed · 14d Schedule 13G amendment | Reported reduction | 11 -19.7M | 12.00% +6.18 pts | $21.99 | $22.84 | $26.51 |
| Berkshire Hathaway CIK0001067983 | Sep 30, 2025 observed Nov 14, 2025 filed · 45d Schedule 13G amendment | Earliest Schedule 13G amendment found | 124.8M | 37.10% | $23.28 | $21.51 | $26.51 |
Compare SIRI with other securities showing similar institutional activity or recent accumulation across several tracked institutions.