Sirius XM Holdings Inc.· SIRI

🇺🇸 US · MidSP400NASDAQ

Communication Services Broadcasting Website

Price: $27.31
Day: -1.53%
Mkt Cap: $9.21B
52W Range: $19.77 – $32.66
Volume: 7.70M
Beta: 0.96

D55D FrameworkQuarterly Data

Holdings Analysis

Insider activity, institutional flows, and fund ownership.

Smart Money: 4.8 / 5 (Very Bullish), from 2 of 3 components
Institutions Q2 2026: 641 institutions hold; 328 added, 149 reduced

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Sirius XM Holdings Inc.

SIRI|Communication Services|Broadcasting

Current price: $27

Smart Money

Dimension 5 of 5

Insider selling pace · Q3 2025

—

buy-only quarter

Seller breadth · Q3 2025

0 sellers

vs 0.0 avg per quarter

Institutional net breadth · Q2 2026

+223

441 adding vs 218 reducing

Institutional ownership · Q2 2026

84.3%

641 institutions

Insider Selling Pace

Each quarter's selling vs this stock's own trailing 6-quarter average

Light <0.5xRoutineElevated >1.5xHeavy >3xBuying

Institutional Positions

Institutions adding above the line, reducing below, net as a line

NewIncreasedReducedClosedNet

Largest Institutional Holders, Q2 2026

By reported market value, and how each moved in the quarter

Holder

Change

BERKSHIRE HATHAWAY INC

124.8M

-0.3%

IMC-CHICAGO, LLC

111.3K

+100.0%

BLACKROCK, INC.

17.6M

+82.3%

DIMENSIONAL FUND ADVISORS LP

10.5M

+66.3%

VANGUARD PORTFOLIO MANAGEMENT LLC

9.1M

+4.0%

VANGUARD CAPITAL MANAGEMENT LLC

8.4M

+0.7%

ETF & Fund Activity, Q2 2026

How the covering funds split between buying, holding and selling

229

81 buying229 unchanged43 selling

279 funds held SIRI in Q2 2026, holding 182.2M shares between them, up 9.6% on the quarter.

Largest fund holders

SPDR SERIES TRUST1.3M sh

Northern Lights Fund Trust141.5K sh

Amplify ETF Trust28.8K sh

Notable Insider Transactions, Q3 2025

Largest open-market purchases and sales by value in the last eight quarters

Purchase · Dec 19

BERKSHIRE HATHAWAY INC

$42.5M

Purchase · Jul 31

BERKSHIRE HATHAWAY INC

$41.6M

Purchase · Aug 1

BERKSHIRE HATHAWAY INC

$40.6M

Insider transactions from SEC Form 4 filings; institutional holdings from quarterly 13F filings, which are reported with a lag and can overlap between filers. 13F: quarterly institutional holdings report · ETF: Exchange-Traded Fund

See the complete picture

The full 5D Framework: Business Quality · Peer Comparison · Valuation · Analyst Sentiment · Smart Money

Explore SIRI on stockoscope.com→

Generated September 22, 2026

For educational purposes only. Not financial advice. Data may be delayed or incomplete.

Smart Money Sentiment

SIRI Smart Money Sentiment Score

A weighted 1-5 sentiment score across three smart money signals.

Smart Money

4.8/5

Very Bullish

Weighted across 3 components

Component Breakdown (2 of 3 available)

Insider Activity

40% weight

No data

Institutional Flow

50% weight

+94

Fund Flow

10% weight

+60

Overall Smart Money sentiment of 4.8/5 (Very Bullish) based on a weighted combination of 2 components. Insider activity uses a relative-baseline comparison against the stock's own history; institutional flow tracks position momentum and 13F share changes; fund flow measures ETF / mutual-fund buying vs selling. Higher scores indicate stronger bullish sentiment from professional investors.Last updated September 21, 2026.

Insider Trading Activity

Insider trading analysis comparing the latest quarter against the stock's own historical baseline.

Insider Selling Pace for SIRI

Each quarter's selling vs the stock's own trailing 6-quarter average; 1.0x is typical for this stock. Green triangles mark quarters with insider buying.

No Data

No recent insider signal

Most recent insider filing was Q3 2025.

Notable Recent Transactions, SIRI

Top 8 highest-value insider trades from the last 8 quarters

BERKSHIRE HATHAWAY INC

10% Owner

Buy

2,038,051 shares at $20.85

≈1.7% of their stake after buying

Dec 19, 2024$42.49M

BERKSHIRE HATHAWAY INC

10% Owner

Buy

1,977,837 shares at $21.04

≈1.6% of their stake after buying

Jul 31, 2025$41.62M

BERKSHIRE HATHAWAY INC

10% Owner

Buy

1,930,000 shares at $21.02

≈1.6% of their stake after buying

Aug 1, 2025$40.57M

BERKSHIRE HATHAWAY INC

10% Owner

Buy

1,440,000 shares at $22.13

≈1.3% of their stake after buying

Dec 17, 2024$31.86M

BERKSHIRE HATHAWAY INC

10% Owner

Buy

1,259,259 shares at $24.95

≈1.2% of their stake after buying

Oct 11, 2024$31.42M

BERKSHIRE HATHAWAY INC

10% Owner

Buy

1,040,000 shares at $27.01

≈0.9% of their stake after buying

Oct 17, 2024$28.09M

BERKSHIRE HATHAWAY INC

10% Owner

Buy

925,205 shares at $27.44

≈0.8% of their stake after buying

Oct 30, 2024$25.39M

BERKSHIRE HATHAWAY INC

10% Owner

Buy

1,037,199 shares at $21.63

≈0.8% of their stake after buying

Aug 4, 2025$22.43M

Institutional Ownership Analysis

Institutional ownership analysis with position momentum, 13F share flow, and ownership percentage trends.

Institutional Positions for SIRI

Institutions adding (new + increased) above zero, reducing (reduced + closed) below, net as a line

New Increased Reduced Closed Net (adding − reducing)

Very Bullish

Institutions accumulating in Q2 2026

84.3% institutional ownership

Strong accumulation: 441 institutions adding vs 218 reducing positions

13F shares increased by 8.8%, a significant shift

+223

Net breadth

441 adding vs 218 reducing

Strong accumulation

2.02

Add / reduce ratio

in Q2 2026

+44

New − closed

113 initiated, 69 exited

8 of 10

Top holders adding

largest holders with a known change

Position Changes

Q2 2026: how are institutions adjusting their positions?

+441 growing-218 shrinkingNet: +223

113

328

149

New (113)

Increased (328)

Reduced (149)

Closed (69)

Top Institutional Holders, SIRI

Largest 8 institutional positions by ownership percentage as of Q2 2026

BERKSHIRE HATHAWAY INC

124.8M

$3.7B

Ownership

37.03%

-0.3%

BLACKROCK, INC.

17.6M

$520.0M

Ownership

5.22%

+82.3%

DIMENSIONAL FUND ADVISORS LP

10.5M

$310.5M

Ownership

3.12%

+66.3%

VANGUARD PORTFOLIO MANAGEMENT LLC

9.1M

$268.3M

Ownership

2.70%

+4.0%

VANGUARD CAPITAL MANAGEMENT LLC

8.4M

$247.7M

Ownership

2.49%

+0.7%

KONTIKI CAPITAL MANAGEMENT (HK) LTD.

6.1M

$179.7M

Ownership

1.80%

+6.5%

STATE STREET CORP

6.0M

$177.0M

Ownership

1.78%

+68.4%

BOSTON PARTNERS

5.1M

$150.2M

Ownership

1.51%

+100.0%

ETF and Mutual Fund Holdings

ETF and mutual fund activity breakdown showing buying vs selling funds, top fund holders, and detailed holdings.

Fund Activity

Q2 2026: 353 ETFs and mutual funds reporting

81 buying43 sellingNet: +38

229

Buying (81)

Unchanged (229)

Selling (43)

In total, funds bought 19.2M shares and sold 1.7M this quarter. Each fund counts once in the bar above, whatever the size of its move.

Very Bullish

Funds accumulating in Q2 2026

353 ETFs and mutual funds reporting

81 funds buying vs 43 selling

Top Fund Holders, SIRI

Largest 8 ETF and mutual fund positions by shares held, each fund's latest filing

SPDR SERIES TRUST

1.3M

Weight

6.53%

Jul 31, 2026No change

Northern Lights Fund Trust

141.5K

Weight

0.29%

Jul 31, 2026No change

Amplify ETF Trust

28.8K

Weight

0.10%

Jun 30, 2026No change

NATIONWIDE MUTUAL FUNDS

25.3K

Weight

0.00%

Jul 31, 2026Increased

EMPOWER FUNDS, INC.

20.8K

Weight

0.00%

Jun 30, 2026No change

VARIABLE INSURANCE PRODUCTS FUND II

19.9K

Weight

0.09%

Jun 30, 2026Increased

ADVANCED SERIES TRUST

19.5K

Weight

0.00%

Jun 30, 2026No change

MASSMUTUAL SELECT FUNDS

9.6K

Weight

0.54%

Jun 30, 2026Decreased

Sirius XM Holdings Inc.· SIRI

Holdings Analysis

Insider Trading Activity

1.3Transaction History45Real market purchases and sales onlyShow All Types

Institutional Ownership Analysis

2.4Detailed Holdings161Most recent institutional positions with changes and valuations

ETF and Mutual Fund Holdings

3.3Fund Holdings Details25Most recent ETF and mutual fund holdings with share counts and weights

Search stocks

Holdings Analysis

Insider Trading Activity

1.3Transaction History45Real market purchases and sales onlyShow All Types

Institutional Ownership Analysis

2.4Detailed Holdings161Most recent institutional positions with changes and valuations

ETF and Mutual Fund Holdings

3.3Fund Holdings Details25Most recent ETF and mutual fund holdings with share counts and weights