Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in AKBA held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 18.7M | $26.0M | -3.2% | 6.968% | 0.00% |
| 2 | STATE STREET CORP | 11.6M | $16.1M | -15.2% | 4.329% | 0.00% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 11.2M | $15.5M | — | 4.163% | 0.00% |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | 6.5M | $9.0M | +2.8% | 2.405% | 0.00% |
| 5 | GOLDMAN SACHS GROUP INC | 3.6M | $5.0M | -23.4% | 1.343% | 0.00% |
| 6 | CITIGROUP INC | 2.9M | $4.0M | +17.2% | 1.064% | 0.00% |
| 7 | BANK OF AMERICA CORP /DE/ | 2.8M | $3.8M | +22.4% | 1.030% | 0.00% |
| 8 | Qube Research & Technologies Ltd | 2.4M | $3.3M | -19.9% | 0.893% | 0.00% |
| 9 | MILLENNIUM MANAGEMENT LLC | 2.4M | $3.3M | +44.2% | 0.889% | 0.00% |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.2M | $3.1M | — | 0.826% | 0.00% |
| 11 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.0M | $2.8M | -7.6% | 0.751% | 0.00% |
| 12 | Nantahala Capital Management, LLC | 2.0M | $2.8M | 0.0% | 0.746% | 0.14% |
| 13 | NORTHERN TRUST CORP | 1.9M | $2.7M | -15.9% | 0.725% | 0.00% |
| 14 | RENAISSANCE TECHNOLOGIES LLC | 1.8M | $2.5M | -49.0% | 0.683% | 0.00% |
| 15 | AQR CAPITAL MANAGEMENT LLC | 1.8M | $2.5M | +177.2% | 0.668% | 0.00% |
| 16 | VANGUARD FIDUCIARY TRUST CO | 1.8M | $2.5M | — | 0.663% | 0.00% |
| 17 | CITADEL ADVISORS LLC | 1.7M | $2.4M | -65.6% | 0.643% | 0.00% |
| 18 | FMR LLC | 1.3M | $1.9M | +18.6% | 0.498% | 0.00% |
| 19 | TWO SIGMA INVESTMENTS, LP | 1.3M | $1.8M | +1332.2% | 0.484% | 0.00% |
| 20 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.1M | $1.5M | +23.1% | 0.412% | 0.00% |
| 21 | DIMENSIONAL FUND ADVISORS LP | 922K | $1.3M | -41.3% | 0.344% | 0.00% |
| 22 | UBS Group AG | 775K | $1.1M | -11.0% | 0.289% | 0.00% |
| 23 | Invesco Ltd. | 720K | $1.0M | +7.6% | 0.268% | 0.00% |
| 24 | WELLINGTON MANAGEMENT GROUP LLP | 708K | $984K | -10.0% | 0.264% | 0.00% |
| 25 | Voleon Capital Management LP | 676K | $939K | +149.0% | 0.252% | 0.02% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in AKBA — a direct measure of their conviction.
Filings activity in AKBA during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 165 | 0.6% | 54.58% | 33.18 pp | $135M | 38% |
| Q4 2025 | 166 | 4.0% | 87.76% | 45.75 pp | $218M | 34% |
| Q3 2025 | 173 | +9.5% | 133.51% | 21.17 pp | $331M | 14% |
| Q2 2025 | 158 | +9.7% | 154.68% | +76.18 pp | $384M | +97% |
| Q1 2025 | 144 | +19% | 78.50% | +28.17 pp | $195M | +56% |
| Q4 2024 | 121 | +7.1% | 50.33% | +19.01 pp | $125M | +61% |
| Q3 2024 | 113 | +9.7% | 31.32% | +9.83 pp | $78M | +46% |
| Q2 2024 | 103 | — | 21.49% | — | $53M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AKBA stock.
Based on Q1 2026 13F filings, institutional ownership of Akebia Therapeutics, Inc. stands at 54.6%, held across 165 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of AKBA, with approximately 18,693,296 shares worth $0.03B as of Q1 2026.
Yes — 5 widely-followed marquee investors appear among the top 25 institutional holders of AKBA, including MILLENNIUM MANAGEMENT LLC, RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC, TWO SIGMA INVESTMENTS, LP, SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for AKBA is 53 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
33 institutions opened new positions in AKBA during Q1 2026, while 34 fully exited. 25 added to existing positions and 105 trimmed.
AKBA institutional ownership fell by 33.18 percentage points quarter-over-quarter, with a net change of -1 holders.
The top 10 institutions account for 65.9% of all reported 13F value in AKBA, and the top 25 account for 87.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Akebia Therapeutics, Inc. (AKBA) Institutional Ownership