Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in IMDX held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BROADWOOD CAPITAL INC | 11.9M | $39.1M | +4.6% | 44.453% | 2.76% |
| 2 | AWM Investment Company, Inc. | 2.8M | $9.2M | -0.3% | 10.455% | 1.02% |
| 3 | PURA VIDA INVESTMENTS, LLC | 947K | $3.1M | 0.0% | 3.529% | 20.88% |
| 4 | Alyeska Investment Group, L.P. | 841K | $2.8M | β | 3.132% | 0.01% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 537K | $1.8M | β | 2.001% | 0.00% |
| 6 | HEIGHTS CAPITAL MANAGEMENT, INC | 393K | $1.3M | β | 1.463% | 0.36% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 262K | $860K | +13.5% | 0.976% | 0.00% |
| 8 | BlackRock, Inc. | 135K | $444K | +3.0% | 0.504% | 0.00% |
| 9 | VANGUARD FIDUCIARY TRUST CO | 133K | $435K | β | 0.494% | 0.00% |
| 10 | Family Office Research LLC | 127K | $417K | β | 0.474% | 0.18% |
| 11 | MILLENNIUM MANAGEMENT LLC | 103K | $339K | +68.6% | 0.386% | 0.00% |
| 12 | Ghisallo Capital Management LLC | 71K | $232K | β | 0.263% | 0.01% |
| 13 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 56K | $184K | -22.6% | 0.209% | 0.00% |
| 14 | STATE STREET CORP | 51K | $166K | +6.3% | 0.189% | 0.00% |
| 15 | NORTHERN TRUST CORP | 49K | $161K | +0.5% | 0.183% | 0.00% |
| 16 | MORGAN STANLEY | 36K | $118K | +0.5% | 0.134% | 0.00% |
| 17 | XTX Topco Ltd | 30K | $100K | β | 0.113% | 0.00% |
| 18 | 683 Capital Management, LLC | 29K | $95K | -62.4% | 0.108% | 0.01% |
| 19 | Qube Research & Technologies Ltd | 25K | $83K | -11.0% | 0.094% | 0.00% |
| 20 | ADVISOR GROUP HOLDINGS, INC. | 24K | $79K | 0.0% | 0.090% | 0.00% |
| 21 | UBS Group AG | 23K | $75K | +673.6% | 0.085% | 0.00% |
| 22 | Engineers Gate Manager LP | 18K | $60K | β | 0.068% | 0.00% |
| 23 | Flatrock Wealth Partners LLC | 13K | $43K | β | 0.049% | 0.02% |
| 24 | Point72 Asset Management, L.P. | 12K | $40K | β | 0.046% | 0.00% |
| 25 | OMERS ADMINISTRATION Corp | 11K | $34K | -59.9% | 0.039% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in IMDX β a direct measure of their conviction.
Filings activity in IMDX during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 40 | +14% | 40.71% | 42.03 pp | $61M | 51% |
| Q4 2025 | 35 | +35% | 82.74% | +46.96 pp | $125M | +131% |
| Q3 2025 | 26 | 16% | 35.78% | +3.35 pp | $54M | +10% |
| Q2 2025 | 31 | +3.3% | 32.43% | 0.05 pp | $49M | 0.1% |
| Q1 2025 | 30 | +25% | 32.48% | +19.41 pp | $49M | +149% |
| Q4 2024 | 24 | +14% | 13.07% | 0.30 pp | $20M | 2.3% |
| Q3 2024 | 21 | 13% | 13.37% | +1.68 pp | $20M | +14% |
| Q2 2024 | 24 | β | 11.69% | β | $18M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying IMDX stock.
Based on Q1 2026 13F filings, institutional ownership of Insight Molecular Diagnostics Inc. stands at 40.7%, held across 40 reporting institutions.
BROADWOOD CAPITAL INC is the largest reported institutional holder of IMDX, with approximately 11,931,839 shares worth $0.04B as of Q1 2026.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of IMDX, including MILLENNIUM MANAGEMENT LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP, Point72 Asset Management, L.P..
Our composite Smart Money Score for IMDX is 54 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
17 institutions opened new positions in IMDX during Q1 2026, while 12 fully exited. 3 added to existing positions and 20 trimmed.
IMDX institutional ownership fell by 42.03 percentage points quarter-over-quarter, with a net change of +5 holders.
The top 10 institutions account for 96.9% of all reported 13F value in IMDX, and the top 25 account for 99.9%.
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.
Insight Molecular Diagnostics Inc. (IMDX) Institutional Ownership