Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in DCTH held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Rosalind Advisors, Inc. | 3.3M | $30.6M | 0.0% | 9.560% | 12.55% |
| 2 | BlackRock, Inc. | 1.8M | $16.6M | -2.2% | 5.169% | 0.00% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 1.3M | $12.3M | — | 3.851% | 0.00% |
| 4 | Propel Bio Management, LLC | 980K | $9.2M | +123.4% | 2.838% | 5.77% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 692K | $6.4M | +1.4% | 2.005% | 0.00% |
| 6 | STATE STREET CORP | 664K | $6.2M | +9.3% | 1.925% | 0.00% |
| 7 | Private Wealth Advisors, LLC | 592K | $5.5M | +103.6% | 1.714% | 1.54% |
| 8 | MILLENNIUM MANAGEMENT LLC | 588K | $5.5M | +138.6% | 1.703% | 0.00% |
| 9 | Divisadero Street Capital Management, LP | 500K | $4.6M | 0.0% | 1.448% | 0.22% |
| 10 | Ikarian Capital, LLC | 431K | $4.0M | 0.0% | 1.249% | 0.43% |
| 11 | MORGAN STANLEY | 386K | $3.6M | +24.9% | 1.117% | 0.00% |
| 12 | Caption Management, LLC | 328K | $3.0M | — | 0.951% | 0.03% |
| 13 | GOLDMAN SACHS GROUP INC | 289K | $2.7M | -50.8% | 0.838% | 0.00% |
| 14 | Simplify Asset Management Inc. | 261K | $2.4M | 0.0% | 0.756% | 0.04% |
| 15 | NORTHERN TRUST CORP | 252K | $2.3M | +4.7% | 0.730% | 0.00% |
| 16 | ADAR1 Capital Management, LLC | 224K | $2.1M | 0.0% | 0.650% | 0.13% |
| 17 | KENNEDY CAPITAL MANAGEMENT, INC. | 208K | $1.9M | +2.5% | 0.602% | 0.04% |
| 18 | Lane Generational LLC | 205K | $1.9M | +3.7% | 0.594% | 1.52% |
| 19 | VANGUARD FIDUCIARY TRUST CO | 202K | $1.9M | — | 0.585% | 0.00% |
| 20 | ROYCE & ASSOCIATES LP | 195K | $1.8M | +25.8% | 0.565% | 0.02% |
| 21 | MARSHALL WACE, LLP | 192K | $1.8M | +687.2% | 0.555% | 0.00% |
| 22 | CIBC World Markets Inc. | 190K | $1.8M | +19.4% | 0.550% | 0.00% |
| 23 | VANGUARD PORTFOLIO MANAGEMENT LLC | 178K | $1.7M | — | 0.516% | 0.00% |
| 24 | Diametric Capital, LP | 156K | $1.5M | -28.9% | 0.453% | 0.38% |
| 25 | RENAISSANCE TECHNOLOGIES LLC | 155K | $1.4M | -57.0% | 0.450% | 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 DCTH — a direct measure of their conviction.
Filings activity in DCTH during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new DCTH position in Q1 2026
Institutions that fully closed their DCTH position in Q1 2026
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 | 117 | 1.7% | 37.15% | 4.65 pp | $150M | 11% |
| Q4 2025 | 119 | 1.7% | 41.80% | 5.56 pp | $169M | 12% |
| Q3 2025 | 121 | +3.4% | 47.36% | 10.45 pp | $192M | 18% |
| Q2 2025 | 117 | +19% | 57.81% | +15.33 pp | $234M | +36% |
| Q1 2025 | 98 | +8.9% | 42.48% | +3.48 pp | $172M | +8.9% |
| Q4 2024 | 90 | +34% | 39.00% | +17.91 pp | $158M | +85% |
| Q3 2024 | 67 | +34% | 21.09% | +2.04 pp | $85M | +11% |
| Q2 2024 | 50 | — | 19.05% | — | $77M | — |
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 DCTH stock.
Based on Q1 2026 13F filings, institutional ownership of Delcath Systems, Inc. stands at 37.1%, held across 117 reporting institutions.
Rosalind Advisors, Inc. is the largest reported institutional holder of DCTH, with approximately 3,300,389 shares worth $0.03B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of DCTH, including MILLENNIUM MANAGEMENT LLC, RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for DCTH is 40 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
26 institutions opened new positions in DCTH during Q1 2026, while 28 fully exited. 26 added to existing positions and 64 trimmed.
DCTH institutional ownership fell by 4.65 percentage points quarter-over-quarter, with a net change of -2 holders.
The top 10 institutions account for 67.1% of all reported 13F value in DCTH, and the top 25 account for 88.2%.
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.
Delcath Systems, Inc. (DCTH) Institutional Ownership