$NBR

$81.32 -$0.97 (1.18%) Close

$NBR Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 16.0M shares outstanding

Who owns NBR?

By type of holder

Institutions 76.0% Insiders 24.0% Everyone else 0.0%

Concentration Top 10 holders own 35.5%

BlackRock, Inc. 8.2% · Adage Capital Partners GP, L.L.C. 2.6%

Institutional ownership

76.0%

+6.0 pts vs last qtr

Institutional holders

241

+7 vs last qtr

Net shares bought

+953.2K

by institutions in Q2 2026

New / sold out

45 / 38

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Engineers Gate Manager LP +389.0K
Encompass Capital Advisors LLC NEW +315.0K

Biggest sellers in Q2 2026

Adage Capital Partners GP, L.L.C. −320.0K
Cibc World Market Inc. −203.0K

Who is planning to sell?

Notices of proposed sale, last 12 months

$294K

1 notice from 1 person

Shares covered

3.2K

0.02% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Tudor David J Director $294K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2018–FY2025

+115.6%

+11.60% a year

Each share's claim on the business

−53.6%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $167M

over 8 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years63% 3–5 years4% 1–3 years9% Under 1 year24%

Quarterly turnover

19.5%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting NBR on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	1.3M	8.21%	+12.0K (+0.9%)	≤2021	0.0%
Shares held by quarter Peak holding1.5M (Q4'24) Change over 8 quarters−155.2K Share of the company8.210% BlackRock, Inc.'s full portfolio →
AC Adage Capital Partners GP, L.L.C.	420.0K	2.63%	−320.0K (−43.2%)	2024	0.1%
Shares held by quarter Peak holding1.3M (Q4'25) Change over 8 quarters+295.0K Share of the company2.630% Adage Capital Partners GP, L.L.C.'s full portfolio →

BlackRock, Inc.

1.3M

% of company

8.21%

Change vs last qtr

+12.0K (+0.9%)

Held since

≤2021

Adage Capital Partners GP, L.L.C.

420.0K

% of company

2.63%

Change vs last qtr

−320.0K (−43.2%)

Held since

2024

28 more super investors behind a free account

See every manager holding Nabors Industries Ltd., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting NBR on Form N-PORT; together they hold 15.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
AU Avantis U.S. Small Cap Value ETF American Century ETF Trust	$45.2M	488.0K	3.06%	0.17%	May 31, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$40.3M	480.3K	3.01%	0.00%	June 30, 2026

Avantis U.S. Small Cap Value ETF

American Century ETF Trust

Position value

$45.2M

% of company

3.06%

% of the fund

0.17%

As of

May 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$40.3M

% of company

3.01%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Nabors Industries Ltd. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
PA Petrello Anthony G Insider	450.7K	2.82%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company2.820% Petrello Anthony G's insider activity →
RW Restrepo William J Insider	124.1K	0.78%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.780% Restrepo William J's insider activity →

Petrello Anthony G

Insider

450.7K

% of company

2.82%

Change vs last qtr

—

Held since

—

Restrepo William J

Insider

124.1K

% of company

0.78%

Change vs last qtr

—

Held since

—

9 more holders behind a free account

See every insider and 5%+ holder of Nabors Industries Ltd..

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