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International Business Machines (IBM) Institutional Ownership & Insider Trading History

Top IBM institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.

Section freshness

Prices as of Oct 2, 4:00 PM EDT · Fundamentals checked Oct 3, 5:57 PM EDT · Statement period ended Jun 30, 2026

Ownership read

IBM insider transaction activity: Mixed, sale-heavy.

Blackrock Inc. is the largest institutional holder. 3 sales and 5 purchases appear in the recent Form 4 filings. Use the filters below to separate open-market activity from option exercises, gifts, awards, and tax withholding.

Review insider tradesView institutions

Insider flow

IBM

Purchases3.62K
Sales55.14K

Directional bars ignore awards, gifts, conversions, and tax withholding rows.

Top holder

76.76M

Blackrock Inc.

Insider transaction activity

Mixed, sale-heavy

$13.25M sold / $913.09K bought

Observations shown

68

10 holder / 58 insider

Holder rows
10
Yahoo Finance · Filing dates shown per row
Increased / initiated
4
6 decreased · provider-reported changes
Insider rows
58
Yahoo Finance · Filing dates shown per row

Ownership concentration and transaction activity

Top 10 reported holders
33.69% outstanding
Changes with share-count history
Prior-position data unavailable
New / exited positions
0 / 0 explicitly reported
Largest increase with share-count history
Prior share counts unavailable

Reported-holder cohort only; absence from a limited provider list does not establish an exit. Changes are provider-reported and are only comparable quarter over quarter when the position periods match.

Net shares sold: 51,523

Sale-code S shares minus purchase-code P shares in this sample. Includes disclosed plans and unknown plan status; excludes grants, gifts, exercises and withholding. This is activity, not sentiment.

  • Purchase / sale; plan unknown: 8
  • Other / unclassified: 29
  • Gift: 7
  • Grant: 14

Top 10 institutional holders

International Business Machines (IBM) institutional ownership

Ranked by reported share count, with position changes and separate position and filing dates where ownership data supplies them.

International Business Machines (IBM) institutional ownership
#Institution% heldSharesChange %Position / filing date
1
Blackrock Inc.
8.15%76.76M-1.03%Position as of Jun 30, 2026Filing date unknown
2
Vanguard Capital Management LLC
6.52%61.39M+0.89%Position as of Jun 30, 2026Filing date unknown
3
State Street Corporation
5.95%56.05M+2.66%Position as of Jun 30, 2026Filing date unknown
4
Vanguard Portfolio Management LLC
3.01%28.35M+2.49%Position as of Jun 30, 2026Filing date unknown
5
Geode Capital Management, LLC
2.49%23.45M+1.61%Position as of Jun 30, 2026Filing date unknown
6
Morgan Stanley
1.85%17.46M-11.06%Position as of Jun 30, 2026Filing date unknown
7
Capital World Investors
1.72%16.21M-5.01%Position as of Jun 30, 2026Filing date unknown
8
Bank of America Corporation
1.59%14.99M-6.69%Position as of Jun 30, 2026Filing date unknown
9
JPMORGAN CHASE & CO
1.32%12.45M-32.89%Position as of Jun 30, 2026Filing date unknown
10
Northern Trust Corporation
1.09%10.23M-0.75%Position as of Jun 30, 2026Filing date unknown
Showing 10 of 10 matching institutional rows.

Recent insider transactions

International Business Machines (IBM) Form 4 filings

Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.

International Business Machines (IBM) Form 4 insider transactions
#Insider% companyActionSharesTransaction date
1
THOMAS ROBERT DAVID
Officer
<0.01%SaleOpen-market or direct sale reported on Form 4.
Transaction context
Classification:
Purchase / sale; plan unknown
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

25.00KAug 26, 2026
2
ROBINSON ANNE
Officer
<0.01%OtherProvider-supplied Form 4 action code. Review the original filing before making a trading judgment.
Transaction context
Classification:
Other / unclassified
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

7.29KJul 1, 2026
3
FEHRING NICOLAS A.
Officer
<0.01%Stock GiftProvider-supplied Form 4 action code. Review the original filing before making a trading judgment.
Transaction context
Classification:
Gift
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

400Jun 4, 2026
4
HOWARD MICHELLE J.
Director
<0.01%PurchaseOpen-market or direct purchase reported on Form 4.
Transaction context
Classification:
Purchase / sale; plan unknown
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

50Feb 25, 2026
5
MIEBACH MICHAEL
Director
<0.01%PurchaseOpen-market or direct purchase reported on Form 4.
Transaction context
Classification:
Purchase / sale; plan unknown
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

434Feb 25, 2026
6
THOMAS ROBERT DAVID
Officer
<0.01%OtherProvider-supplied Form 4 action code. Review the original filing before making a trading judgment.
Transaction context
Classification:
Other / unclassified
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

8.41KFeb 20, 2026
7
KRISHNA ARVIND
Chief Executive Officer
<0.01%OtherProvider-supplied Form 4 action code. Review the original filing before making a trading judgment.
Transaction context
Classification:
Other / unclassified
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

16.90KFeb 20, 2026
8
LAMOREAUX NICKLE JACLYN
Officer
<0.01%OtherProvider-supplied Form 4 action code. Review the original filing before making a trading judgment.
Transaction context
Classification:
Other / unclassified
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

4.39KFeb 20, 2026
9
FEHRING NICOLAS A.
Officer
<0.01%OtherProvider-supplied Form 4 action code. Review the original filing before making a trading judgment.
Transaction context
Classification:
Other / unclassified
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

1.57KFeb 20, 2026
10
COHN GARY D
Officer
<0.01%OtherProvider-supplied Form 4 action code. Review the original filing before making a trading judgment.
Transaction context
Classification:
Other / unclassified
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

7.58KFeb 20, 2026
11
KAVANAUGH JAMES J.
Chief Financial Officer
<0.01%OtherProvider-supplied Form 4 action code. Review the original filing before making a trading judgment.
Transaction context
Classification:
Other / unclassified
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

9.83KFeb 20, 2026
12
THOMAS ROBERT DAVID
Officer
<0.01%OtherProvider-supplied Form 4 action code. Review the original filing before making a trading judgment.
Transaction context
Classification:
Other / unclassified
10b5-1:
Unknown; not supplied by provider
Holdings after:
Not reported
Position sold:
Not calculable
Filed:
Not reported

Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.

2.55KFeb 18, 2026
Showing 12 of 58 matching Form 4 rows. Percent of company uses current shares outstanding.

Frequently asked

Common questions.

Who are the largest IBM shareholders?

Blackrock Inc. is the largest reported institutional holder of IBM, with 76.76 million shares, or about 8.15% of shares outstanding.

What does the institutional filing activity show for IBM?

International Business Machines has 10 institutional rows on file: 4 increased or initiated positions and 6 reduced them.

What insider transactions are available for IBM?

TECHi shows 58 dated IBM insider transactions through Aug 26, 2026, with transaction types kept separate so administrative actions are not presented as open-market trades.

Are IBM insiders buying or selling?

The displayed IBM activity reads Mixed, sale-heavy: 3 sales and 5 purchases. Other transaction types remain separate.

Who is the most active reported IBM insider?

KRISHNA ARVIND has the largest absolute share movement in the displayed IBM filing rows, totaling 208,726 shares. The action labels provide the transaction context.

All data sources

Search the dated figures used for this view. Each entry identifies its units, reporting period and calculation status.

How to use this page

Use this to check who owns the float and whether insiders are active.

Best for Institutional concentration, insider transaction pattern, and float context.

Weak when Filings are delayed or transactions are administrative rather than economic.

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