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Cable One, Inc. (CABO) institutional ownership

Market cap$259M SectorCommunication Services
Funds holding · Q1 2026
205
reported CABO position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
86 buyers · 119 sellers

Cable One, Inc. (CABO) price and institutional activity

Dates

Q1 2026

$0 bought by 86 investors
D. E. Shaw & Co., Inc.Marshall Wace, LLP +84 more
$0 sold by 119 investors
Quantinno Capital Management LPVanguard +117 more
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Bought Sold Totals per quarter; hover a bar for the names.

Cable One, Inc. (CABO) institutional activity · 205

Investor Type Est. change Change Δ Own Date
Quantinno Capital Management LP · Reduced
Change −140K Date Q1 2026
Quantinno Capital Management LP Reduced· Q1 2026 −140K Q1 2026
D. E. Shaw & Co., Inc. · Added
Change +95K Δ Own +31.8% Date Q1 2026
D. E. Shaw & Co., Inc. Added· Q1 2026 +95K +31.8% Q1 2026
Vanguard · Reduced
Change −93K Date Q1 2026
Vanguard Reduced· Q1 2026 −93K Q1 2026
Marshall Wace, LLP · Added
Change +87K Date Q1 2026
Marshall Wace, LLP Added· Q1 2026 +87K Q1 2026
Nordea Investment Management AB · Exited
Change −72K Δ Own −100.0% Date Q1 2026
Nordea Investment Management AB Exited· Q1 2026 −72K −100.0% Q1 2026
Goldman Sachs Group Inc · Reduced
Change −59K Date Q1 2026
Goldman Sachs Group Inc Reduced· Q1 2026 −59K Q1 2026
Ameriprise Financial Inc · Reduced
Change −48K Date Q1 2026
Ameriprise Financial Inc Reduced· Q1 2026 −48K Q1 2026
Man Group PLC · Added
Change +37K Date Q1 2026
Man Group PLC Added· Q1 2026 +37K Q1 2026
BlackRock · Reduced
Change −35K Date Q1 2026
BlackRock Reduced· Q1 2026 −35K Q1 2026
Norges · Exited
Change −29K Δ Own −100.0% Date Q1 2026
Norges Exited· Q1 2026 −29K −100.0% Q1 2026
Dimensional · Reduced
Change −28K Date Q1 2026
Dimensional Reduced· Q1 2026 −28K Q1 2026
Trexquant Investment LP · Exited
Change −26K Δ Own −100.0% Date Q1 2026
Trexquant Investment LP Exited· Q1 2026 −26K −100.0% Q1 2026
Public Sector Pension Investment Board · Added
Change +25K Date Q1 2026
Public Sector Pension Investment Board Added· Q1 2026 +25K Q1 2026
UBS Group AG · Reduced
Change −24K Date Q1 2026
UBS Group AG Reduced· Q1 2026 −24K Q1 2026
Walleye Capital LLC · Exited
Change −23K Δ Own −100.0% Date Q1 2026
Walleye Capital LLC Exited· Q1 2026 −23K −100.0% Q1 2026
Data through Q1 2026 · filed Jun 2, 2026
15 of 205

Famous investor activity in Cable One, Inc. (CABO)

Cable One, Inc. (CABO) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Brian Brad D. · Director Grant (A) $200K
Price $51.13 Qty 4K Owned 8K Trade date May 14, 2026 Filed date May 18, 2026
Brian Brad D. Director Grant (A) $51.13 4K $200K 8K May 14, 2026 May 18, 2026
Weymouth Katharine · Director Grant (A) $155K
Price $51.13 Qty 3K Owned 5K Trade date May 14, 2026 Filed date May 18, 2026
Weymouth Katharine Director Grant (A) $51.13 3K $155K 5K May 14, 2026 May 18, 2026
Weitz Wallace R. · Director Grant (A) $255K
Price $51.13 Qty 5K Owned 22K Trade date May 14, 2026 Filed date May 18, 2026
Weitz Wallace R. Director Grant (A) $51.13 5K $255K 22K May 14, 2026 May 18, 2026
Bartolo P. Robert · Director Grant (A) $155K
Price $51.13 Qty 3K Owned 5K Trade date May 14, 2026 Filed date May 18, 2026
Bartolo P. Robert Director Grant (A) $51.13 3K $155K 5K May 14, 2026 May 18, 2026
Kissire Deborah J. · Director Grant (A) $155K
Price $51.13 Qty 3K Owned 6K Trade date May 14, 2026 Filed date May 18, 2026
Kissire Deborah J. Director Grant (A) $51.13 3K $155K 6K May 14, 2026 May 18, 2026
Smith Sherrese M. · Director Grant (A) $245K
Price $51.13 Qty 5K Owned 8K Trade date May 14, 2026 Filed date May 18, 2026
Smith Sherrese M. Director Grant (A) $51.13 5K $245K 8K May 14, 2026 May 18, 2026
Meduski Mary E. · Director Grant (A) $257K
Price $51.13 Qty 5K Owned 9K Trade date May 14, 2026 Filed date May 18, 2026
Meduski Mary E. Director Grant (A) $51.13 5K $257K 9K May 14, 2026 May 18, 2026
Koetje Todd M. · Officer Buy +$100K
Price $100.16 Qty +998 Owned 8K Trade date Mar 3, 2026 Filed date Mar 3, 2026
Koetje Todd M. Officer Buy $100.16 +998 +$100K 8K Mar 3, 2026 Mar 3, 2026
Holanda James A. · Director Grant (A) 44K
Owned 44K Trade date Feb 26, 2026 Filed date Feb 26, 2026
Holanda James A. Director Grant (A) 44K 44K Feb 26, 2026 Feb 26, 2026
Detz Margaret Masoner · Officer Grant (A) $125K
Price $87.70 Qty 1K Owned 6K Trade date Feb 2, 2026 Filed date Feb 4, 2026
Detz Margaret Masoner Officer Grant (A) $87.70 1K $125K 6K Feb 2, 2026 Feb 4, 2026
Koetje Todd M. · Officer Tax withholding or exercise payment (F) -$14K
Price $87.70 Qty -156 Owned 7K Trade date Feb 2, 2026 Filed date Feb 4, 2026
Koetje Todd M. Officer Tax withholding or exercise payment (F) $87.70 -156 -$14K 7K Feb 2, 2026 Feb 4, 2026
Koetje Todd M. · Officer Grant (A) $193K
Price $87.70 Qty 2K Owned 7K Trade date Feb 2, 2026 Filed date Feb 4, 2026
Koetje Todd M. Officer Grant (A) $87.70 2K $193K 7K Feb 2, 2026 Feb 4, 2026
Johnson Kenneth E. · Officer Tax withholding or exercise payment (F) -$6K
Price $87.70 Qty -70 Owned 7K Trade date Feb 2, 2026 Filed date Feb 4, 2026
Johnson Kenneth E. Officer Tax withholding or exercise payment (F) $87.70 -70 -$6K 7K Feb 2, 2026 Feb 4, 2026
Johnson Kenneth E. · Officer Grant (A) $119K
Price $87.70 Qty 1K Owned 8K Trade date Feb 2, 2026 Filed date Feb 4, 2026
Johnson Kenneth E. Officer Grant (A) $87.70 1K $119K 8K Feb 2, 2026 Feb 4, 2026
Mokry Anthony John · Officer Tax withholding or exercise payment (F) -$26K
Price $104.16 Qty -250 Owned 2K Trade date Jan 3, 2026 Filed date Jan 6, 2026
Mokry Anthony John Officer Tax withholding or exercise payment (F) $104.16 -250 -$26K 2K Jan 3, 2026 Jan 6, 2026
15 of 25
15 of 25 Sign in to continue to older insider transactions.

Cable One, Inc. (CABO) activist and large shareholders

What are Schedules 13D and 13G?

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
BlackRock Inc. 667K
% of shares outstanding 11.9% Filing date May 8, 2024
BlackRock Inc. 667K 11.9% May 8, 2024
Vanguard Group Inc 566K
% of shares outstanding 10.1% Filing date Sep 10, 2024
Vanguard Group Inc 566K 10.1% Sep 10, 2024
Graham Donald 480K
% of shares outstanding 8.4% Filing date May 8, 2023
Graham Donald 480K 8.4% May 8, 2023
D. E. Shaw & Co, L.P. 392K
% of shares outstanding 6.9% Filing date May 15, 2026
D. E. Shaw & Co, L.P. 392K 6.9% May 15, 2026
Blackrock, Inc. 353K
% of shares outstanding 6.2% Filing date Jul 8, 2026
Blackrock, Inc. 353K 6.2% Jul 8, 2026
Burgundy Asset Management Ltd. 297K
% of shares outstanding 5.3% Filing date Nov 12, 2024
Burgundy Asset Management Ltd. 297K 5.3% Nov 12, 2024
Wellington Management Group LLP 243K
% of shares outstanding 4.3% Filing date Feb 8, 2024
Wellington Management Group LLP 243K 4.3% Feb 8, 2024
T. Rowe Price Associates 2K
% of shares outstanding 0.2% Filing date Feb 14, 2023
T. Rowe Price Associates 2K 0.2% Feb 14, 2023
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Cable One, Inc. (CABO) ownership FAQ

Who owns CABO?

205 reporting institutions disclosed CABO position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.