$AKBA

$0.64 +$0.08 (13.57%) Close

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

Ownership

13F as of Q2 2026 · 277.1M shares outstanding

Who owns AKBA?

By type of holder

Institutions 38.7% Insiders 3.3% Everyone else 58.0%

Concentration Top 10 holders own 26.2%

BlackRock, Inc. 7.2% · State Street Corp 2.0%

Institutional ownership

38.7%

+2.0 pts vs last qtr

Institutional holders

169

-2 vs last qtr

Net shares bought

+5.7M

by institutions in Q2 2026

New / sold out

37 / 39

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Aqr Capital Management LLC +7.4M
Jacobs Levy Equity Management, Inc +3.8M

Biggest sellers in Q2 2026

State Street Corp −6.2M
Bank Of America Corp /de/ −2.3M

Who is planning to sell?

Notices of proposed sale, last 12 months

$897K

6 notices from 5 people

Shares covered

654.5K

0.24% of the company

Arranged in advance

93%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Butler John P. Officer 10b5-1 $476K
Grund Nicholas Officer 10b5-1 $118K

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, FY2019–FY2025

+117.2%

+13.80% a year

Each share's claim on the business

−54.0%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $105M

over 7 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+ years57% 3–5 years10% 1–3 years25% Under 1 year8%

Quarterly turnover

23.3%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting AKBA on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	20.0M	7.21%	+1.3M (+6.9%)	≤2021	0.0%
Shares held by quarter Peak holding20.0M (Q2'26) Change over 8 quarters+4.8M Share of the company7.210% BlackRock, Inc.'s full portfolio →
SS State Street Corp	5.4M	1.95%	−6.2M (−53.6%)	≤2021	0.0%
Shares held by quarter Peak holding13.7M (Q4'25) Change over 8 quarters+2.0M Share of the company1.950% State Street Corp's full portfolio →

BlackRock, Inc.

20.0M

% of company

7.21%

Change vs last qtr

+1.3M (+6.9%)

Held since

≤2021

State Street Corp

5.4M

% of company

1.95%

Change vs last qtr

−6.2M (−53.6%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Akebia Therapeutics Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting AKBA on Form N-PORT; together they hold 17.5% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$9.02M	7.9M	2.86%	0.00%	June 30, 2026
SS State Street(R) SPDR(R) S&P(R) Biotech ETF SPDR Series Trust	$8.39M	6.0M	2.18%	0.11%	March 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$9.02M

% of company

2.86%

% of the fund

0.00%

As of

June 30, 2026

State Street(R) SPDR(R) S&P(R) Biotech ETF

SPDR Series Trust

Position value

$8.39M

% of company

2.18%

% of the fund

0.11%

As of

March 31, 2026

23 more funds behind a free account

See every fund holding Akebia Therapeutics Inc 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
BJ Butler John P. Insider	4.9M	1.77%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company1.770% Butler John P.'s insider activity →
BS Burke Steven Keith Insider	948.4K	0.34%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.340% Burke Steven Keith's insider activity →

Butler John P.

Insider

4.9M

% of company

1.77%

Change vs last qtr

—

Held since

—

Burke Steven Keith

Insider

948.4K

% of company

0.34%

Change vs last qtr

—

Held since

—

11 more holders behind a free account

See every insider and 5%+ holder of Akebia Therapeutics Inc.

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