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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.

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Price Jun 24, 10:24 AM EDT · Statements Mar 30, 8:00 PM EDT

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Ownership read

IBM insider sentiment: Mixed, buy-heavy.

VANGUARD GROUP INC is the largest institutional holder. 58 sales and 62 purchases appear in the recent Form 4 filings. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.

Insider flow

IBM

Purchases658.58K
Sales221.25K

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

Top holder

97.22M

VANGUARD GROUP INC

Insider stance

Mixed, buy-heavy

$45.47M sold / $1.49M bought

Latest filing

Jun 4, 2026

Most recent holder or insider filing date

Filings shown

240

120 holder / 120 insider

Holder rows
120
Market data source
Latest filing
Jun 4, 2026
Most recent holder or insider filing date
Increased / initiated
65
54 decreased
Insider rows
120
Market data source

Top 120 institutional holders

International Business Machines (IBM) institutional ownership

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

VANGUARD GROUP INC

Rank #1

10.4%

Shares
97.22M
Change
+1.44M
Change %
+150.00%
Filing
Dec 31, 2025

Increased

BLACKROCK

Rank #2

8.29%

Shares
77.57M
Change
-307.62K
Change %
-40.00%
Filing
Mar 31, 2026

Decreased

VANGUARD CAPITAL MANAGEMENT LLC

Rank #3

6.50%

Shares
60.85M
Change
+60.85M
Change %
Filing
Mar 31, 2026

Initiated

STATE STREET CORP

Rank #4

5.83%

Shares
54.59M
Change
-401.80K
Change %
-73.00%
Filing
Mar 31, 2026

Decreased

VANGUARD PORTFOLIO MANAGEMENT LLC

Rank #5

2.96%

Shares
27.66M
Change
+27.66M
Change %
Filing
Mar 31, 2026

Initiated

GEODE CAPITAL MANAGEMENT

Rank #6

2.47%

Shares
23.08M
Change
+471.25K
Change %
+2.08%
Filing
Mar 31, 2026

Increased

MORGAN STANLEY

Rank #7

2.10%

Shares
19.63M
Change
+4.77M
Change %
+32.11%
Filing
Mar 31, 2026

Increased

JPMORGAN CHASE & CO

Rank #8

1.98%

Shares
18.54M
Change
+3.34M
Change %
+21.98%
Filing
Mar 31, 2026

Increased

CAPITAL WORLD INVESTORS

Rank #9

1.82%

Shares
17.06M
Change
-4.96M
Change %
-22.52%
Filing
Mar 31, 2026

Decreased

BANK OF AMERICA CORP

Rank #10

1.72%

Shares
16.06M
Change
+1.05M
Change %
+6.99%
Filing
Mar 31, 2026

Increased

NORTHERN TRUST CORP

Rank #11

1.10%

Shares
10.30M
Change
+172.61K
Change %
+1.70%
Filing
Mar 31, 2026

Increased

NORGES BANK

Rank #12

0.88%

Shares
8.26M
Change
+1.44M
Change %
+21.06%
Filing
Dec 31, 2025

Increased

UBS AM

Rank #13

0.81%

Shares
7.57M
Change
+302.37K
Change %
+4.16%
Filing
Mar 31, 2026

Increased

BANK OF NEW YORK MELLON CORP

Rank #14

0.77%

Shares
7.17M
Change
-22.24K
Change %
-31.00%
Filing
Mar 31, 2026

Decreased

GOLDMAN SACHS GROUP INC

Rank #15

0.75%

Shares
7.01M
Change
+412.35K
Change %
+6.25%
Filing
Mar 31, 2026

Increased

LEGAL & GENERAL GROUP PLC

Rank #16

0.74%

Shares
6.91M
Change
-187.44K
Change %
-2.64%
Filing
Mar 31, 2026

Decreased

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

Rank #17

0.72%

Shares
6.74M
Change
+156.70K
Change %
+2.38%
Filing
Mar 31, 2026

Increased

VANGUARD FIDUCIARY TRUST CO

Rank #18

0.56%

Shares
5.26M
Change
+5.26M
Change %
Filing
Mar 31, 2026

Initiated

FMR LLC

Rank #19

0.56%

Shares
5.25M
Change
-1.41M
Change %
-21.15%
Filing
Mar 31, 2026

Decreased

DIMENSIONAL FUND ADVISORS LP

Rank #20

0.55%

Shares
5.14M
Change
+100.65K
Change %
+2.00%
Filing
Mar 31, 2026

Increased

Showing 20 of 120 matching institutional rows.Load more institutions

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.

FEHRING, NICOLAS A.

VP, Controller

SaleOpen-market or direct sale reported on Form 4.
Shares
400
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Jun 4, 2026

ZOLLAR, ALFRED W

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
377
% company
<0.01%
Price
$242.39
Value
$91,381

Filed Mar 31, 2026

BUBERL, THOMAS

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
377
% company
<0.01%
Price
$242.39
Value
$91,381

Filed Mar 31, 2026

WADDELL, FREDERICK H

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
403
% company
<0.01%
Price
$242.39
Value
$97,683

Filed Mar 31, 2026

VOSER, PETER R.

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
413
% company
<0.01%
Price
$242.39
Value
$100,107

Filed Mar 31, 2026

MIEBACH, MICHAEL

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
377
% company
<0.01%
Price
$242.39
Value
$91,381

Filed Mar 31, 2026

MCNABB, FREDERICK WILLIAM III

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
377
% company
<0.01%
Price
$242.39
Value
$91,381

Filed Mar 31, 2026

POLLACK, MARTHA E

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
243
% company
<0.01%
Price
$242.39
Value
$58,901

Filed Mar 31, 2026

HOWARD, MICHELLE J

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
264
% company
<0.01%
Price
$242.39
Value
$63,991

Filed Mar 31, 2026

GORSKY, ALEX

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
444
% company
<0.01%
Price
$242.39
Value
$107,621

Filed Mar 31, 2026

BROWN, MARIANNE CATHERINE

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
377
% company
<0.01%
Price
$242.39
Value
$91,381

Filed Mar 31, 2026

LAGUARTA, RAMON

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
126
% company
<0.01%
Price
$242.39
Value
$30,541

Filed Mar 31, 2026

FARR, DAVID N

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
243
% company
<0.01%
Price
$242.39
Value
$58,901

Filed Mar 31, 2026

LIVERIS, ANDREW N

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
403
% company
<0.01%
Price
$242.39
Value
$97,683

Filed Mar 31, 2026

COHN, GARY D

Vice Chairman

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
42.26K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

ROBINSON, ANNE

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
25.36K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

LAMOREAUX, NICKLE JACLYN

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
6.29K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

KRISHNA, ARVIND

Director, Chairman, President & CEO

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
22.52K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

KRISHNA, ARVIND

Director, Chairman, President & CEO

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
90.07K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

KAVANAUGH, JAMES J

Sr. VP and CFO

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
41.45K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

FEHRING, NICOLAS A.

VP, Controller

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
2.84K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

LAMOREAUX, NICKLE JACLYN

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
25.14K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

ROBINSON, ANNE

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
6.34K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

KAVANAUGH, JAMES J

Sr. VP and CFO

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
10.36K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

FEHRING, NICOLAS A.

VP, Controller

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
7.58K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

COHN, GARY D

Vice Chairman

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
10.56K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

THOMAS, ROBERT DAVID

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
42.26K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

THOMAS, ROBERT DAVID

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
10.56K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 26, 2026

HOWARD, MICHELLE J

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
50
% company
<0.01%
Price
$237.83
Value
$11,891

Filed Feb 25, 2026

MIEBACH, MICHAEL

Director

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
434
% company
<0.01%
Price
$233.33
Value
$101,264

Filed Feb 25, 2026

LAMOREAUX, NICKLE JACLYN

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
817
% company
<0.01%
Price
$256.42
Value
$209,495

Filed Feb 21, 2026

LAMOREAUX, NICKLE JACLYN

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
1.60K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

LAMOREAUX, NICKLE JACLYN

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
888
% company
<0.01%
Price
$256.42
Value
$227,701

Filed Feb 21, 2026

LAMOREAUX, NICKLE JACLYN

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
1.74K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

COHN, GARY D

Vice Chairman

SaleOpen-market or direct sale reported on Form 4.
Shares
1.51K
% company
<0.01%
Price
$256.42
Value
$386,425

Filed Feb 21, 2026

COHN, GARY D

Vice Chairman

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
2.73K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

COHN, GARY D

Vice Chairman

SaleOpen-market or direct sale reported on Form 4.
Shares
2.61K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

LAMOREAUX, NICKLE JACLYN

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
1.05K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

LAMOREAUX, NICKLE JACLYN

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
538
% company
<0.01%
Price
$256.42
Value
$137,954

Filed Feb 21, 2026

KAVANAUGH, JAMES J

Sr. VP and CFO

SaleOpen-market or direct sale reported on Form 4.
Shares
3.58K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

KAVANAUGH, JAMES J

Sr. VP and CFO

SaleOpen-market or direct sale reported on Form 4.
Shares
3.38K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

KAVANAUGH, JAMES J

Sr. VP and CFO

SaleOpen-market or direct sale reported on Form 4.
Shares
1.69K
% company
<0.01%
Price
$256.42
Value
$434,375

Filed Feb 21, 2026

KAVANAUGH, JAMES J

Sr. VP and CFO

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
3.38K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

COHN, GARY D

Vice Chairman

SaleOpen-market or direct sale reported on Form 4.
Shares
2.25K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

KAVANAUGH, JAMES J

Sr. VP and CFO

SaleOpen-market or direct sale reported on Form 4.
Shares
1.44K
% company
<0.01%
Price
$256.42
Value
$369,758

Filed Feb 21, 2026

KAVANAUGH, JAMES J

Sr. VP and CFO

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
2.88K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

KAVANAUGH, JAMES J

Sr. VP and CFO

SaleOpen-market or direct sale reported on Form 4.
Shares
1.79K
% company
<0.01%
Price
$256.42
Value
$459,505

Filed Feb 21, 2026

KAVANAUGH, JAMES J

Sr. VP and CFO

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
3.58K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

FEHRING, NICOLAS A.

VP, Controller

SaleOpen-market or direct sale reported on Form 4.
Shares
632
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

COHN, GARY D

Vice Chairman

SaleOpen-market or direct sale reported on Form 4.
Shares
2.73K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

COHN, GARY D

Vice Chairman

SaleOpen-market or direct sale reported on Form 4.
Shares
1.24K
% company
<0.01%
Price
$256.42
Value
$318,730

Filed Feb 21, 2026

COHN, GARY D

Vice Chairman

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
2.25K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

COHN, GARY D

Vice Chairman

SaleOpen-market or direct sale reported on Form 4.
Shares
1.44K
% company
<0.01%
Price
$256.42
Value
$370,270

Filed Feb 21, 2026

COHN, GARY D

Vice Chairman

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
2.61K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

THOMAS, ROBERT DAVID

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
2.67K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

THOMAS, ROBERT DAVID

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
3.12K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

THOMAS, ROBERT DAVID

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
2.63K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

THOMAS, ROBERT DAVID

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
1.35K
% company
<0.01%
Price
$256.42
Value
$345,911

Filed Feb 21, 2026

THOMAS, ROBERT DAVID

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
2.67K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

THOMAS, ROBERT DAVID

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
1.57K
% company
<0.01%
Price
$256.42
Value
$403,862

Filed Feb 21, 2026

THOMAS, ROBERT DAVID

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
3.12K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

THOMAS, ROBERT DAVID

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
1.33K
% company
<0.01%
Price
$256.42
Value
$340,782

Filed Feb 21, 2026

THOMAS, ROBERT DAVID

Senior Vice President

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
2.63K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

LAMOREAUX, NICKLE JACLYN

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
1.60K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

LAMOREAUX, NICKLE JACLYN

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
1.74K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

LAMOREAUX, NICKLE JACLYN

Senior Vice President

SaleOpen-market or direct sale reported on Form 4.
Shares
1.05K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

KAVANAUGH, JAMES J

Sr. VP and CFO

SaleOpen-market or direct sale reported on Form 4.
Shares
2.88K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

KRISHNA, ARVIND

Director, Chairman, President & CEO

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
5.17K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

KRISHNA, ARVIND

Director, Chairman, President & CEO

SaleOpen-market or direct sale reported on Form 4.
Shares
2.59K
% company
<0.01%
Price
$256.42
Value
$663,359

Filed Feb 21, 2026

KRISHNA, ARVIND

Director, Chairman, President & CEO

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
6.12K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

KRISHNA, ARVIND

Director, Chairman, President & CEO

SaleOpen-market or direct sale reported on Form 4.
Shares
3.07K
% company
<0.01%
Price
$256.42
Value
$786,953

Filed Feb 21, 2026

KRISHNA, ARVIND

Director, Chairman, President & CEO

PurchaseOpen-market or direct purchase reported on Form 4.
Shares
5.61K
% company
<0.01%
Price
Not reported
Value
Not reported

Filed Feb 21, 2026

Showing 72 of 120 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders

Frequently asked

Common questions.

Who are the largest IBM shareholders?

VANGUARD GROUP INC is the largest institutional holder of IBM, with 97.22 million shares, or about 10.39% of shares outstanding. Additional institutions are ranked by reported share count.

What is institutional ownership of IBM?

International Business Machines (IBM) has 120 institutional holders on file — 65 that increased or initiated positions and 54 that reduced them, as of the latest filing on Mar 31, 2026.

Where can I see International Business Machines insider transactions?

International Business Machines (IBM) has 120 Form 4 insider transactions on file, most recently on Jun 4, 2026, separated into purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are distinguished from open-market trades.

Are IBM insiders buying or selling?

Recent IBM insider activity reads Mixed, buy-heavy: 58 sales and 62 purchases. Awards, gifts, conversions, and tax withholding are listed separately because they do not carry the same signal as open-market trades.

Who is the most active IBM insider?

KRISHNA, ARVIND is the most active IBM insider by absolute share movement, with 293,193 shares moving across the filing history. Review the action labels before treating that activity as buying or selling.