Miromatrix Medical Inc.
Miromatrix Medical Inc. (MIRO) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MIRO · as of Sep 30, 2023
Ownership Breakdown
30
Institutional Holders
▼ 1 vs Q2
$8.75M
Total Inst. Value
▼ $2.83M vs Q2
27.42M
Shares Outstanding
freeFloat 71.52%
6.70M
13F Shares Held
▲ 81,639 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MIRO largest shareholders · institutional ownership
Q3 2023 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FIRST LIGHT ASSET MANAGEMENT, LLC biological products, (no diagnostic substances) | 2.28M | 8.36% | 8.36% | $2.99B | Nov 14, 2023 | ▲ 52.9K |
GAGNON SECURITIES LLC biological products, (no diagnostic substances) | 1.46M | 5.35% | 5.35% | $1.91B | Nov 14, 2023 | ▲ 16.9K |
VANGUARD GROUP INC biological products, (no diagnostic substances) | 658.5K | 2.42% | 2.42% | $862.70M | Dec 18, 2023 | ▲ 9.3K |
GAGNON ADVISORS, LLC biological products, (no diagnostic substances) | 556.8K | 2.04% | 2.04% | $729.35M | Nov 14, 2023 | — held |
RTW INVESTMENTS, LP biological products, (no diagnostic substances) | 445.2K | 1.63% | 1.63% | $583.24M | Nov 14, 2023 | — held |
MAYO CLINIC biological products, (no diagnostic substances) | 191.6K | 70.32% | 70.32% | $251.03M | Nov 14, 2023 | — held |
GEODE CAPITAL MANAGEMENT, LLC biological products, (no diagnostic substances) | 173.8K | 63.77% | 63.77% | $210.34M | Nov 13, 2023 | ▼ 14.0K |
G2 INVESTMENT PARTNERS MANAGEMENT LLC biological products, (no diagnostic substances) | 168.7K | 61.92% | 61.92% | $221.03M | Nov 14, 2023 | ▼ 12.1K |
SWEET FINANCIAL PARTNERS, LLC biological products, (no diagnostic substances) | 139.6K | 51.21% | 51.21% | $182.81M | Oct 23, 2023 | ▲ 2.0K |
PERKINS CAPITAL MANAGEMENT INC biological products, (no diagnostic substances) | 119.3K | 43.79% | 43.79% | $156.00M | Nov 2, 2023 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2023 vs prior quarter
Q3 2023
9
Increased
+129.2K shares2
New Positions
first time holders5
Decreased
−30.3K shares3
Sold Out
fully exitedNet shares change (top 50)
+98.8K
+129.2K / −30.3K
Net new holders
+3
2 new / 3 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MIRO insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
1
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Heine Lisa Wipperman director | Dec 12, 2023 | U-Tender | 66,943 | $1.75 | $117.2K | 67.4K | Form 4 ↗ |
Heine Lisa Wipperman director | Dec 13, 2023 | D-Return | 67,413 | — | — | 0 | Form 4 ↗ |
Maag Peter director | Dec 12, 2023 | U-Tender | 62,092 | $1.75 | $108.7K | 58.4K | Form 4 ↗ |
Maag Peter director | Dec 13, 2023 | D-Return | 58,368 | — | — | 0 | Form 4 ↗ |
ERB JOHN L director | Dec 12, 2023 | U-Tender | 56,260 | $1.75 | $98.5K | 54.2K | Form 4 ↗ |
ERB JOHN L director | Dec 13, 2023 | D-Return | 54,201 | — | — | 0 | Form 4 ↗ |
ERB JOHN L director | Dec 13, 2023 | D-Return | 25,000 | $3.75 | $93.8K | 0 | Form 4 ↗ |
BUCKMAN PAUL director | Dec 12, 2023 | U-Tender | 52,593 | $1.75 | $92.0K | 54.2K | Form 4 ↗ |
BUCKMAN PAUL director | Dec 13, 2023 | D-Return | 54,201 | — | — | 0 | Form 4 ↗ |
BUCKMAN PAUL director | Dec 13, 2023 | D-Return | 25,000 | $3.75 | $93.8K | 0 | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Miromatrix Medical Inc. (MIRO) is primarily owned by institutional investors, who hold approximately 24.4% of total shares outstanding. Company insiders own approximately 28.48%, while retail and public investors account for the remaining 47.09%.
The largest institutional shareholder of Miromatrix Medical Inc. is FIRST LIGHT ASSET MANAGEMENT, LLC, holding approximately 2.28 million shares — equal to 8.36% of outstanding shares — as of September 30, 2023.
A total of 30 institutional investors currently hold MIRO stock, with a combined institutional value of approximately $8,749,560 as of the most recent 13F filing period.
Frequently asked questions
MIRO ownershipMiromatrix Medical Inc. (MIRO) is primarily owned by institutional investors, who hold approximately 24.4% of shares. The largest shareholder is FIRST LIGHT ASSET MANAGEMENT, LLC with a 8.36% stake. Company insiders hold 28.48%. Data sourced from SEC Form 13F as of September 30, 2023.