Insight Molecular Diagnostics Inc. (IMDX) Ownership
IMDX ownership summary
as of October 18, 2026- Institutions
- 57.5% of shares outstanding
- Insiders
- 21.00% of shares outstanding
- Shares outstanding
- 32.7M
- Float
- 10.0M shares available to trade
- Short interest
- 5.98% 973K shares short
- Days to cover
- 3.57 short interest down 2.0% vs prior month
- Institutions 57.54%
- Insiders 21.00%
- Other investors 21.46%
IMDX top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BROADWOOD CAPITAL Inc | 38.76% | 12.7M | $38.2M | +753,045 (+6.3%) | June 30, 2026 |
| 2 | Awm Investment Company Inc | 8.67% | 2.8M | $8.5M | +30,436 (+1.1%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 2.25% | 736K | $2.2M | +198,686 (+37.0%) | June 30, 2026 |
| 4 | PURA VIDA INVESTMENTS, LLC | 1.48% | 485K | $1.5M | −462,289 (−48.8%) | June 30, 2026 |
| 5 | Geode Capital Management, LLC | 0.79% | 257K | $773,278 | −5,150 (−2.0%) | June 30, 2026 |
| 6 | FNY Investment Advisers, LLC | 0.56% | 183K | $549,509 | −64,860 (−26.2%) | June 30, 2026 |
| 7 | Jane Street Group LLC | 0.48% | 158K | $474,623 | +157,682 (0.0%) | June 30, 2026 |
| 8 | BlackRock Inc | 0.46% | 151K | $453,068 | +15,176 (+11.2%) | June 30, 2026 |
| 9 | Vanguard Fiduciary Trust Co | 0.38% | 125K | $374,974 | −8,015 (−6.0%) | June 30, 2026 |
| 10 | State Street Corp | 0.28% | 92K | $277,293 | +41,370 (+81.5%) | June 30, 2026 |
| 11 | Millennium Management LLC | 0.25% | 82K | $248,322 | −20,971 (−20.3%) | June 30, 2026 |
| 12 | UBS Group AG | 0.16% | 53K | $160,361 | +30,525 (+134.2%) | June 30, 2026 |
| 13 | Northern Trust Corp | 0.15% | 49K | $147,761 | — | June 30, 2026 |
| 14 | Advisor Group Holdings, Inc. | 0.12% | 39K | $117,799 | +15,001 (+62.2%) | June 30, 2026 |
| 15 | Morgan Stanley - Brokerage Accounts | 0.11% | 36K | $106,900 | −573 (−1.6%) | June 30, 2026 |
| 16 | 683 Capital Management LLC | 0.09% | 29K | $87,290 | −48,204 (−62.4%) | March 31, 2026 |
| 17 | Zevenbergen Capital Investments LLC | 0.07% | 22K | $66,220 | +22,000 (0.0%) | September 30, 2026 |
| 18 | Jefferies Financial Group Inc | 0.06% | 18K | $54,481 | +18,100 (0.0%) | June 30, 2026 |
| 19 | Marshall Wace Asset Management Ltd | 0.05% | 17K | $49,957 | +16,597 (0.0%) | June 30, 2026 |
| 20 | ExodusPoint Capital Management, LP | 0.04% | 14K | $42,227 | +14,029 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 1.3M shares and 7 cut 610K.
IMDX top mutual fund and ETF holders
11 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 1.45% | 475K | $1.4M | — | August 31, 2026 |
| 2 | Fidelity Extended Market Index | 0.33% | 107K | $323,412 | −577 (−0.5%) | August 31, 2026 |
| 3 | iShares Micro-Cap ETF | 0.13% | 41K | $124,196 | −285 (−0.7%) | September 30, 2026 |
| 4 | Fidelity Total Market Index | 0.12% | 39K | $116,252 | — | August 31, 2026 |
| 5 | Fidelity Series Total Market Index | 0.11% | 36K | $108,736 | — | August 31, 2026 |
| 6 | Fidelity Nasdaq Composite Index | 0.04% | 13K | $38,718 | −6,629 (−34.0%) | August 31, 2026 |
| 7 | Vanguard Balanced Index Inv | 0.02% | 7,927 | $23,860 | — | August 31, 2026 |
| 8 | Vanguard U.S. Eq Idx £ Acc | 0.02% | 5,775 | $17,383 | — | August 31, 2026 |
| 9 | 1290 VT Micro Cap K | 0.01% | 2,902 | $8,735 | — | August 31, 2026 |
| 10 | Victory Extended Market Index | <0.01% | 1,464 | $4,407 | −1,736 (−54.2%) | June 30, 2026 |
| 11 | Guggenheim Active Allocation Fund | <0.01% | 34 | $102 | +17 (+100.0%) | May 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
IMDX insider transactions
latest 4| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-20 | Broadwood Partners, L.P. | Buy | $3.88 | 40,690 | $157,877 |
| 2026-04-17 | Broadwood Partners, L.P. | Buy | $3.57 | 40,114 | $143,207 |
| 2026-04-16 | Broadwood Partners, L.P. | Buy | $3.45 | 102,057 | $352,097 |
| 2026-02-10 | Broadwood Partners, L.P. | Buy | $5.75 | 521,739 | $3.0M |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
IMDX shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns IMDX
Institutional investors own 57.5% of Insight Molecular Diagnostics's shares and insiders 21.00%. The largest holder is BROADWOOD CAPITAL Inc with 38.76% of the shares (12.7M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 7 reduced their stake in the latest filings. Short interest is 5.98% of the float, or 3.57 days of average trading volume. The share count rose 2,696.5% since 2014.
Related: IMDX analyst forecast, IMDX key metrics. See the IMDX stock overview for the latest quote and news.
IMDX ownership FAQ
Who owns the most Insight Molecular Diagnostics stock?
The largest shareholders of Insight Molecular Diagnostics are BROADWOOD CAPITAL Inc (38.76%), Awm Investment Company Inc (8.67%), Vanguard Capital Management, LLC (2.25%), PURA VIDA INVESTMENTS, LLC (1.48%), Geode Capital Management, LLC (0.79%).
What percentage of Insight Molecular Diagnostics is owned by institutions?
Institutions hold 57.5% of Insight Molecular Diagnostics's shares outstanding; insiders hold 21.00%.
Which funds own Insight Molecular Diagnostics?
The largest fund holders of Insight Molecular Diagnostics are Vanguard MStar Total Stk Mkt Idx Invest (1.45%), Fidelity Extended Market Index (0.33%), iShares Micro-Cap ETF (0.13%), Fidelity Total Market Index (0.12%), Fidelity Series Total Market Index (0.11%).
What is Insight Molecular Diagnostics's short interest?
973K shares of Insight Molecular Diagnostics were sold short, 5.98% of the float; at the average daily volume it would take 3.57 days to cover.
Are insiders buying or selling Insight Molecular Diagnostics?
Of the latest 4 reported insider transactions in Insight Molecular Diagnostics (since February 10, 2026), 4 were purchases and 0 were sales.
How many shares of Insight Molecular Diagnostics are outstanding?
Insight Molecular Diagnostics has 32.7M shares outstanding, of which 10.0M are in the public float.