Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in MNOV held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Essex Woodlands Management, Inc. | 1.1M | $1.5M | 0.0% | 2.247% | 0.60% |
| 2 | BlackRock, Inc. | 706K | $967K | +0.1% | 1.434% | 0.00% |
| 3 | CITIGROUP INC | 636K | $871K | 0.0% | 1.291% | 0.00% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 611K | $837K | — | 1.241% | 0.00% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 544K | $745K | +2.7% | 1.105% | 0.00% |
| 6 | VANGUARD FIDUCIARY TRUST CO | 281K | $384K | — | 0.570% | 0.00% |
| 7 | UBS Group AG | 222K | $304K | -1.5% | 0.451% | 0.00% |
| 8 | STATE STREET CORP | 194K | $265K | 0.0% | 0.394% | 0.00% |
| 9 | RENAISSANCE TECHNOLOGIES LLC | 190K | $260K | -3.5% | 0.386% | 0.00% |
| 10 | BARCLAYS PLC | 163K | $223K | +313.4% | 0.331% | 0.00% |
| 11 | NORTHERN TRUST CORP | 133K | $182K | 0.0% | 0.271% | 0.00% |
| 12 | JANE STREET GROUP, LLC | 87K | $119K | -46.6% | 0.177% | 0.00% |
| 13 | Bank of New York Mellon Corp | 78K | $107K | -18.6% | 0.159% | 0.00% |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 72K | $98K | 0.0% | 0.145% | 0.00% |
| 15 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 56K | $77K | -26.3% | 0.114% | 0.00% |
| 16 | DIMENSIONAL FUND ADVISORS LP | 51K | $69K | -22.3% | 0.103% | 0.00% |
| 17 | SBI Securities Co., Ltd. | 45K | $61K | -0.8% | 0.091% | 0.00% |
| 18 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 44K | $60K | +93.1% | 0.089% | 0.00% |
| 19 | Schonfeld Strategic Advisors LLC | 36K | $50K | +0.9% | 0.074% | 0.00% |
| 20 | BANK OF AMERICA CORP /DE/ | 34K | $47K | +14.5% | 0.070% | 0.00% |
| 21 | TWO SIGMA INVESTMENTS, LP | 30K | $41K | -25.0% | 0.061% | 0.00% |
| 22 | GOLDMAN SACHS GROUP INC | 28K | $38K | +5.1% | 0.056% | 0.00% |
| 23 | Vanguard Global Advisers, LLC | 16K | $21K | — | 0.032% | 0.00% |
| 24 | XTX Topco Ltd | 14K | $19K | — | 0.029% | 0.00% |
| 25 | MORGAN STANLEY | 2K | $3K | 0.0% | 0.004% | 0.00% |
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 MNOV — a direct measure of their conviction.
Filings activity in MNOV 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 | 29 | 9.4% | 12.17% | 0.19 pp | $7M | 1.5% |
| Q4 2025 | 32 | +23% | 12.36% | +1.65 pp | $7M | +15% |
| Q3 2025 | 26 | +8.3% | 10.71% | 0.24 pp | $6M | 2.2% |
| Q2 2025 | 24 | 17% | 10.95% | 1.41 pp | $7M | 11% |
| Q1 2025 | 29 | 6.5% | 12.36% | 5.44 pp | $7M | 31% |
| Q4 2024 | 31 | +3.3% | 17.80% | +1.07 pp | $11M | +6.4% |
| Q3 2024 | 30 | 12% | 16.73% | +4.56 pp | $10M | +37% |
| Q2 2024 | 34 | — | 12.17% | — | $7M | — |
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 MNOV stock.
Based on Q1 2026 13F filings, institutional ownership of MediciNova, Inc. stands at 12.2%, held across 29 reporting institutions.
Essex Woodlands Management, Inc. is the largest reported institutional holder of MNOV, with approximately 1,105,941 shares worth $0.00B as of Q1 2026.
Yes — 4 widely-followed marquee investors appear among the top 25 institutional holders of MNOV, including RENAISSANCE TECHNOLOGIES LLC, JANE STREET GROUP, LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for MNOV is 54 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
5 institutions opened new positions in MNOV during Q1 2026, while 8 fully exited. 17 added to existing positions and 6 trimmed.
MNOV institutional ownership fell by 0.19 percentage points quarter-over-quarter, with a net change of -3 holders.
The top 10 institutions account for 86.5% of all reported 13F value in MNOV, and the top 25 account for 100.0%.
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.
MediciNova, Inc. (MNOV) Institutional Ownership