AKBA · Akebia Therapeutics, Inc. · Shareholders & Ownership

$0.61 -0.07 (-9.82%)

Russell 2000 member Rebalance outlook locked

Market Cap

$177.65M

277.11M

Volume · Oct 20 6.2M Avg daily vol (3M) 6.72M

Every disclosed holder of AKBA in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns AKBA

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	170	107,813,583	38.91%	Yes
Insiders (Forms 3, 4, 5)	13	8,155,531	2.94%	Yes
13D/G-only blocks	1	5,747,906	2.07%	Yes
Remaining	—	155,389,225	56.08%	Rest
Registered funds (N-PORT, not summed)	128	42,063,074	15.18%	No

Shares outstanding: 277,106,245, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of AKBA

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	19,986,374	7.21%	+1,293,078	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	6,792,653	2.45%	+547,720	Jun 30, 2026	iShares Trust, not summed
1.2	iShares Russell 2000 Growth ETF Fund S000004343 · Registered fund · Jun 30, 2026 iShares Trust, not summed	2,169,896	0.78%	+1,932,616	Jun 30, 2026	iShares Trust, not summed
1.3	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	868,716	0.31%	+230,303	Jun 30, 2026	iShares Trust, not summed
1.4	iShares U.S. Small-Cap Equity Factor ETF Fund S000048624 · Registered fund · Jul 31, 2026 iShares Trust, not summed	613,144	0.22%	+44,505	Jul 31, 2026	iShares Trust, not summed
1.5	Master Small Cap Index Series Fund S000002716 · Registered fund · Jun 30, 2026 Quantitative Master Series LLC, not summed	421,156	0.15%	0	Jun 30, 2026	Quantitative Master Series LLC, not summed
2	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	11,322,143	4.09%	+155,433	Jun 30, 2026	carried, not yet filed for the newest quarter
3	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	9,151,524	3.30%	+7,358,904	Jun 30, 2026	carried, not yet filed for the newest quarter
3.1	AQR Small Cap Multi-Style Fund Fund S000040064 · Registered fund · Jun 30, 2026 AQR Funds, not summed	566,557	0.20%	+475,668	Jun 30, 2026	AQR Funds, not summed
3.2	AQR Small Cap Momentum Style Fund Fund S000025644 · Registered fund · Mar 31, 2026 AQR Funds, not summed	40,514	0.01%	—	Mar 31, 2026	AQR Funds, not summed
4	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	7,912,283	2.86%	0	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
5	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	6,727,302	2.43%	+275,050	Jun 30, 2026	carried, not yet filed for the newest quarter
6	Satter Muneer A 13G CIK 1315797 · Unknown · Dec 31, 2024 Rule 13d-1(c), passive investor	5,747,906	2.07%	-10,457,213	Dec 31, 2024	Rule 13d-1(c), passive investor
7	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	5,390,853	1.95%	-6,223,153	Jun 30, 2026	carried, not yet filed for the newest quarter
7.1	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	87,300	0.03%	0	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
7.2	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	7,252	0.00%	+488	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
7.3	State Street Balanced Index Fund Fund S000082802 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	1,648	0.00%	0	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
8	JACOBS LEVY EQUITY MANAGEMENT, INC 13F CIK 884414 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	4,273,026	1.54%	+3,843,357	Jun 30, 2026	carried, not yet filed for the newest quarter
9	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	4,004,867	1.45%	+2,627,799	Jun 30, 2026	carried, not yet filed for the newest quarter
10	Butler John P. Insider CIK 1591467 · Aug 6, 2026 Director, CEO and President, issuer-wide	3,878,492	1.40%	+351,500	Aug 6, 2026	Director, CEO and President, issuer-wide
11	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	3,689,167	1.33%	+86,340	Jun 30, 2026	carried, not yet filed for the newest quarter
11.1	Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF Fund S000048296 · Registered fund · May 31, 2026 Goldman Sachs ETF Trust, not summed	326,417	0.12%	-47,589	May 31, 2026	Goldman Sachs ETF Trust, not summed
11.2	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Jun 30, 2026 GOLDMAN SACHS TRUST, not summed	40,704	0.01%	+12,510	Jun 30, 2026	GOLDMAN SACHS TRUST, not summed
12	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	3,196,605	1.15%	+811,892	Jun 30, 2026	carried, not yet filed for the newest quarter
13	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	3,164,884	1.14%	+184,583	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
14	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,533,977	0.91%	+318,536	Jun 30, 2026	carried, not yet filed for the newest quarter
15	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,436,673	0.88%	+1,138,872	Jun 30, 2026	carried, not yet filed for the newest quarter
16	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,300,438	0.83%	+284,861	Jun 30, 2026	carried, not yet filed for the newest quarter
16.1	Schwab U.S. Small-Cap ETF Fund S000026636 · Registered fund · May 31, 2026 SCHWAB STRATEGIC TRUST, not summed	1,262,655	0.46%	-20,492	May 31, 2026	SCHWAB STRATEGIC TRUST, not summed
16.2	Schwab Small-Cap Index Fund Fund S000005912 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	631,828	0.23%	+72,492	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
16.3	Schwab Total Stock Market Index Fund Fund S000005913 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	169,804	0.06%	0	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
17	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	2,160,365	0.78%	+214,779	Jun 30, 2026	carried, not yet filed for the newest quarter
17.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	135,289	0.05%	+26,361	Jun 30, 2026	Northern Funds, not summed
18	Nantahala Capital Management, LLC 13F CIK 1472322 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,000,000	0.72%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
19	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,908,797	0.69%	+129,496	Jun 30, 2026	carried, not yet filed for the newest quarter
20	FMR LLC 13F CIK 315066 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,871,059	0.68%	+535,731	Jun 30, 2026	carried, not yet filed for the newest quarter
20.1	Fidelity Small Cap Index Fund Fund S000033638 · Registered fund · Jul 31, 2026 Fidelity Salem Street Trust, not summed	2,807,664	1.01%	+312,068	Jul 31, 2026	Fidelity Salem Street Trust, not summed
20.2	Fidelity Enhanced Small Cap Core ETF Fund S000081807 · Registered fund · Jun 30, 2026 Fidelity Covington Trust, not summed	1,638,117	0.59%	+474,751	Jun 30, 2026	Fidelity Covington Trust, not summed
20.3	Fidelity Extended Market Index Fund Fund S000006021 · Registered fund · May 31, 2026 Fidelity Concord Street Trust, not summed	1,397,714	0.50%	-3,618	May 31, 2026	Fidelity Concord Street Trust, not summed
20.4	Fidelity Total Market Index Fund Fund S000006026 · Registered fund · May 31, 2026 Fidelity Concord Street Trust, not summed	466,701	0.17%	0	May 31, 2026	Fidelity Concord Street Trust, not summed
20.5	Fidelity Series Total Market Index Fund Fund S000065248 · Registered fund · May 31, 2026 Fidelity Concord Street Trust, not summed	402,374	0.15%	+19,427	May 31, 2026	Fidelity Concord Street Trust, not summed
21	Qube Research & Technologies Ltd 13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,779,707	0.64%	-615,508	Jun 30, 2026	carried, not yet filed for the newest quarter
22	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,717,659	0.62%	+327,592	Jun 30, 2026	carried, not yet filed for the newest quarter
23	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,374,950	0.50%	+605,479	Jun 30, 2026	carried, not yet filed for the newest quarter
24	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · May 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	1,298,780	0.47%	+47,556	May 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
25	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,223,963	0.44%	-609,165	Jun 30, 2026	carried, not yet filed for the newest quarter
26	CITIGROUP INC 13F CIK 831001 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,124,570	0.41%	-1,730,016	Jun 30, 2026	carried, not yet filed for the newest quarter
27	Burke Steven Keith Insider CIK 1619834 · Feb 2, 2026 SVP, Chief Medical Officer, issuer-wide	948,432	0.34%	-67,658	Feb 2, 2026	SVP, Chief Medical Officer, issuer-wide
28	Hennion & Walsh Asset Management, Inc. 13F CIK 1861642 · Unknown · Sep 30, 2026	868,227	0.31%	+28,498	Sep 30, 2026
29	VANGUARD HEALTH CARE INDEX FUND Fund S000004450 · Registered fund · May 31, 2026 VANGUARD WORLD FUND, not summed	751,608	0.27%	-6,382	May 31, 2026	VANGUARD WORLD FUND, not summed
30	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	701,540	0.25%	+120,213	Jun 30, 2026	carried, not yet filed for the newest quarter
31	Invesco Ltd. 13F CIK 914208 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	694,928	0.25%	-25,211	Jun 30, 2026	carried, not yet filed for the newest quarter
31.1	Invesco RAFI US 1500 Small-Mid ETF Fund S000013120 · Registered fund · Jul 31, 2026 Invesco Exchange-Traded Fund Trust, not summed	450,659	0.16%	-47,432	Jul 31, 2026	Invesco Exchange-Traded Fund Trust, not summed
31.2	Invesco NASDAQ Future Gen 200 ETF Fund S000077288 · Registered fund · May 31, 2026 Invesco Exchange-Traded Fund Trust II, not summed	58,651	0.02%	+16,866	May 31, 2026	Invesco Exchange-Traded Fund Trust II, not summed
32	MANGROVE PARTNERS IM, LLC 13F CIK 1535392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	666,954	0.24%	+291,000	Jun 30, 2026	carried, not yet filed for the newest quarter
33	AMERIPRISE FINANCIAL INC 13F CIK 820027 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	626,160	0.23%	+615,769	Jun 30, 2026	carried, not yet filed for the newest quarter
33.1	Columbia Research Enhanced Small Cap ETF Fund S000095313 · Registered fund · Jun 30, 2026 Columbia ETF Trust I, not summed	304	0.00%	+50	Jun 30, 2026	Columbia ETF Trust I, not summed
34	Bank of New York Mellon Corp 13F CIK 1390777 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	619,149	0.22%	-31,702	Jun 30, 2026	carried, not yet filed for the newest quarter
35	Ostrowski Erik Insider CIK 1762507 · Jun 29, 2026 SVP, CFO, CBO & Treasurer, issuer-wide	616,616	0.22%	-56,019	Jun 29, 2026	SVP, CFO, CBO & Treasurer, issuer-wide
36	Nuveen, LLC 13F CIK 1871926 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	596,599	0.22%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
36.1	Nuveen Small Cap Blend Index Fund Fund S000005367 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	324,490	0.12%	0	Jul 31, 2026	TIAA-CREF Funds, not summed
36.2	Nuveen Equity Index Fund Fund S000005360 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	213,305	0.08%	0	Jul 31, 2026	TIAA-CREF Funds, not summed
36.3	TIAA Separate Account VA-1 - Stock Index Account Fund S000005098 · Registered fund · Jun 30, 2026 TIAA Separate Account VA-1, not summed	5,405	0.00%	0	Jun 30, 2026	TIAA Separate Account VA-1, not summed
36.4	Nuveen Life Stock Index Fund Fund S000005094 · Registered fund · Jun 30, 2026 TIAA-CREF Life Funds, not summed	3,465	0.00%	0	Jun 30, 2026	TIAA-CREF Life Funds, not summed
37	SUSQUEHANNA INTERNATIONAL GROUP, LLP 13F CIK 1446194 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	589,821	0.21%	-132,298	Jun 30, 2026	carried, not yet filed for the newest quarter
38	Rucci Carolyn M. Insider CIK 2107264 · Feb 2, 2026 SVP, Chief Legal Officer, issuer-wide	588,378	0.21%	-69,772	Feb 2, 2026	SVP, Chief Legal Officer, issuer-wide
39	CHOREO, LLC 13F CIK 1679031 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	562,423	0.20%	+562,423	Jun 30, 2026	carried, not yet filed for the newest quarter
40	Quantinno Capital Management LP 13F CIK 1759654 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	562,123	0.20%	+562,123	Jun 30, 2026	carried, not yet filed for the newest quarter
41	Grund Nicholas Insider CIK 1661887 · Feb 2, 2026 Chief Commercial Officer, issuer-wide	561,750	0.20%	-84,829	Feb 2, 2026	Chief Commercial Officer, issuer-wide
42	Creative Planning 13F CIK 1540235 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	545,740	0.20%	+369,174	Jun 30, 2026	carried, not yet filed for the newest quarter
43	LOS ANGELES CAPITAL MANAGEMENT LLC 13F CIK 1177206 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	531,813	0.19%	-69,495	Jun 30, 2026	carried, not yet filed for the newest quarter
44	PANAGORA ASSET MANAGEMENT INC 13F CIK 883677 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	466,519	0.17%	+230,408	Jun 30, 2026	carried, not yet filed for the newest quarter
45	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	458,750	0.17%	-2,304,612	Jun 30, 2026	carried, not yet filed for the newest quarter
46	Multi-Manager Small Cap Equity Strategies Fund Fund S000036206 · Registered fund · May 31, 2026 COLUMBIA FUNDS SERIES TRUST I, not summed	453,762	0.16%	—	May 31, 2026	COLUMBIA FUNDS SERIES TRUST I, not summed
47	Eversept Partners, LP 13F CIK 1697013 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	427,095	0.15%	+427,095	Jun 30, 2026	carried, not yet filed for the newest quarter
48	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	358,627	0.13%	-563,296	Jun 30, 2026	carried, not yet filed for the newest quarter
49	NVIT Multi-Manager Small Company Fund Fund S000005419 · Registered fund · Jun 30, 2026 Nationwide Variable Insurance Trust, not summed	358,293	0.13%	—	Jun 30, 2026	Nationwide Variable Insurance Trust, not summed
50	ALLIANCEBERNSTEIN L.P. 13F CIK 1109448 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	354,910	0.13%	+115,980	Jun 30, 2026	carried, not yet filed for the newest quarter

17 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 250 holders

Create a free account to page through every holder, filter by source and group by ultimate parent.

Key facts CIK 1517022 CUSIP 00972D105 13F (30d) 17 filings 17 filers Visit website Investor relations