Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in LUCD held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4.6M | $5.3M | +7.5% | 4.534% | 0.00% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 4.2M | $4.8M | — | 4.061% | 0.00% |
| 3 | MASTERS CAPITAL MANAGEMENT LLC | 4.0M | $4.6M | 0.0% | 3.910% | 0.41% |
| 4 | abrdn plc | 3.6M | $4.2M | +5.4% | 3.562% | 0.01% |
| 5 | Two Seas Capital LP | 3.0M | $3.5M | 0.0% | 2.932% | 0.14% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 2.2M | $2.6M | +10.8% | 2.195% | 0.00% |
| 7 | Russell Investments Group, Ltd. | 1.6M | $1.8M | +15537.5% | 1.548% | 0.00% |
| 8 | STATE STREET CORP | 1.6M | $1.8M | +14.9% | 1.520% | 0.00% |
| 9 | WELLS FARGO & COMPANY/MN | 1.3M | $1.5M | +38.6% | 1.246% | 0.00% |
| 10 | PERKINS CAPITAL MANAGEMENT INC | 1.1M | $1.3M | 0.0% | 1.101% | 1.21% |
| 11 | Sunbelt Securities, Inc. | 900K | $1.0M | +134.4% | 0.880% | 0.07% |
| 12 | NORTHERN TRUST CORP | 671K | $771K | +5.3% | 0.655% | 0.00% |
| 13 | VANGUARD FIDUCIARY TRUST CO | 624K | $717K | — | 0.609% | 0.00% |
| 14 | VANGUARD PORTFOLIO MANAGEMENT LLC | 529K | $608K | — | 0.517% | 0.00% |
| 15 | RAYMOND JAMES FINANCIAL INC | 525K | $604K | — | 0.513% | 0.00% |
| 16 | RENAISSANCE TECHNOLOGIES LLC | 500K | $575K | -39.6% | 0.488% | 0.00% |
| 17 | UBS Group AG | 445K | $512K | +43.9% | 0.435% | 0.00% |
| 18 | Lido Advisors, LLC | 383K | $441K | 0.0% | 0.374% | 0.00% |
| 19 | FIRST MANHATTAN CO | 323K | $372K | 0.0% | 0.316% | 0.00% |
| 20 | BANK OF MONTREAL /CAN/ | 285K | $328K | +1902.2% | 0.279% | 0.00% |
| 21 | GOLDMAN SACHS GROUP INC | 243K | $279K | -16.1% | 0.237% | 0.00% |
| 22 | AQR CAPITAL MANAGEMENT LLC | 235K | $270K | +187.8% | 0.230% | 0.00% |
| 23 | XML Financial, LLC | 223K | $257K | +24.8% | 0.218% | 0.02% |
| 24 | Bank of New York Mellon Corp | 206K | $237K | +1.7% | 0.202% | 0.00% |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 197K | $227K | -12.2% | 0.193% | 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 LUCD — a direct measure of their conviction.
Filings activity in LUCD 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 | 100 | +12% | 41.45% | +5.76 pp | $41M | +16% |
| Q4 2025 | 89 | +8.5% | 35.69% | 0.37 pp | $35M | 1.0% |
| Q3 2025 | 82 | +15% | 36.06% | +14.18 pp | $35M | +65% |
| Q2 2025 | 71 | +48% | 21.88% | +7.58 pp | $22M | +53% |
| Q1 2025 | 48 | +45% | 14.30% | +11.50 pp | $14M | +410% |
| Q4 2024 | 33 | +14% | 2.80% | +0.77 pp | $3M | +38% |
| Q3 2024 | 29 | 17% | 2.03% | +0.38 pp | $2M | +23% |
| Q2 2024 | 35 | — | 1.65% | — | $2M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Latest Form 4 transactions by company officers and directors. Insider buys are widely viewed as the highest-conviction signal because executives are risking personal capital.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| May 20, 2026 | Matheis Dennis | Buy | 245K | $1.00 | $245K |
Quick answers to the most common questions about buying LUCD stock.
Based on Q1 2026 13F filings, institutional ownership of Lucid Diagnostics Inc. stands at 41.4%, held across 100 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of LUCD, with approximately 4,638,243 shares worth $0.01B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of LUCD, including RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for LUCD is 63 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
25 institutions opened new positions in LUCD during Q1 2026, while 14 fully exited. 55 added to existing positions and 18 trimmed.
LUCD institutional ownership rose by 5.76 percentage points quarter-over-quarter, with a net change of +11 holders.
The top 10 institutions account for 76.8% of all reported 13F value in LUCD, and the top 25 account for 94.6%.
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.
Lucid Diagnostics Inc. (LUCD) Institutional Ownership