$JAZZ

$207.83 +$2.77 (1.35%) Close

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

Ownership

13F as of Q2 2026 · 64.9M shares outstanding

Who owns JAZZ?

By type of holder

Institutions 99.1% Insiders 0.9% Everyone else 0.0%

Concentration Top 10 holders own 48.1%

BlackRock, Inc. 9.2% · FMR LLC 7.1%

Institutional ownership

99.1%

-0.9 pts vs last qtr

Institutional holders

645

+69 vs last qtr

Net shares bought

−684.4K

by institutions in Q2 2026

New / sold out

133 / 64

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

FMR LLC +2.3M
Norges Bank NEW +656.8K

Biggest sellers in Q2 2026

EcoR1 Capital, LLC SOLD OUT −1.7M
Holocene Advisors, LP −572.9K

Who is planning to sell?

Notices of proposed sale, last 12 months

$85.4M

49 notices from 26 people

Shares covered

405.9K

0.63% of the company

Arranged in advance

39%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Robert Iannone Officer 10b5-1 $20.4M
Bruce C Cozadd Officer $14M

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, FY2016–FY2025

−1.4%

−0.16% a year

Each share's claim on the business

+1.5%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$2.06B vs $1.72B

over 10 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+ years68% 3–5 years10% 1–3 years15% Under 1 year7%

Quarterly turnover

14.3%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting JAZZ on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	6.0M	9.19%	+376.9K (+6.7%)	≤2021	0.0%
Shares held by quarter Peak holding6.0M (Q2'26) Change over 8 quarters+96.0K Share of the company9.190% BlackRock, Inc.'s full portfolio →
F FMR LLC	4.6M	7.10%	+2.3M (+102.5%)	≤2021	0.1%
Shares held by quarter Peak holding4.6M (Q2'26) Change over 8 quarters+3.8M Share of the company7.100% FMR LLC's full portfolio →

BlackRock, Inc.

6.0M

% of company

9.19%

Change vs last qtr

+376.9K (+6.7%)

Held since

≤2021

FMR LLC

4.6M

% of company

7.10%

Change vs last qtr

+2.3M (+102.5%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Jazz Pharmaceuticals PLC, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting JAZZ on Form N-PORT; together they hold 18.1% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$456M	1.9M	2.92%	0.02%	June 30, 2026
FB Fullerthaler Behavioral Small Cap Equity Capitol Series Trust	$376M	1.6M	2.41%	2.97%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$456M

% of company

2.92%

% of the fund

0.02%

As of

June 30, 2026

Fullerthaler Behavioral Small Cap Equity

Capitol Series Trust

Position value

$376M

% of company

2.41%

% of the fund

2.97%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Jazz Pharmaceuticals PLC 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
OK O'Keefe Kenneth W Insider	4.2M	6.45%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company6.450% O'Keefe Kenneth W's insider activity →
KP Kennedy Patrick Insider	1.4K	0.00%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.000% Kennedy Patrick's insider activity →

O'Keefe Kenneth W

Insider

4.2M

% of company

6.45%

Change vs last qtr

—

Held since

—

Kennedy Patrick

Insider

1.4K

% of company

0.00%

Change vs last qtr

—

Held since

—

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