50% buyers of institutions opening or closing positions this quarter
new buyers and exits are balanced, ownership rose 0.20 percentage points vs the prior quarter, and 3 well-known fund managers in the top 25.
50% buyers of institutions opening or closing positions this quarter
4.0% institutional ownership
Newbridge Financial Services portfolio allocation
Institutional ownership vs Medical - Instruments & Supplies peers
No Form 4 insider transactions on file
Latest positioning in MLSS across 13F flow, ownership shift, marquee holders, and holder-count growth.
Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in MLSS held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 2.0M | $572K | β | 2.256% | 0.00% |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | 617K | $178K | +0.4% | 0.700% | 0.00% |
| 3 | VANGUARD FIDUCIARY TRUST CO | 322K | $93K | β | 0.365% | 0.00% |
| 4 | CITADEL ADVISORS LLC | 167K | $48K | +8.7% | 0.190% | 0.00% |
| 5 | STATE STREET CORP | 140K | $40K | 0.0% | 0.159% | 0.00% |
| 6 | LPL Financial LLC | 125K | $36K | +19.1% | 0.142% | 0.00% |
| 7 | Mariner, LLC | 122K | $35K | 0.0% | 0.138% | 0.00% |
| 8 | NORTHERN TRUST CORP | 113K | $32K | 0.0% | 0.128% | 0.00% |
| 9 | Pensionmark Financial Group, LLC | 104K | $30K | +4.0% | 0.118% | 0.00% |
| 10 | Carnegie Capital Asset Management, LLC | 100K | $29K | 0.0% | 0.114% | 0.00% |
| 11 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 100K | $29K | 0.0% | 0.113% | 0.00% |
| 12 | RENAISSANCE TECHNOLOGIES LLC | 82K | $24K | -0.5% | 0.094% | 0.00% |
| 13 | BlackRock, Inc. | 65K | $19K | -7.6% | 0.074% | 0.00% |
| 14 | UBS Group AG | 63K | $18K | -34.8% | 0.071% | 0.00% |
| 15 | Brookwood Investment Group LLC | 49K | $14K | 0.0% | 0.056% | 0.00% |
| 16 | XTX Topco Ltd | 45K | $13K | +46.7% | 0.052% | 0.00% |
| 17 | COMMONWEALTH EQUITY SERVICES, LLC | 45K | $13K | β | 0.051% | 0.00% |
| 18 | Sequoia Financial Advisors, LLC | 43K | $13K | 0.0% | 0.049% | 0.00% |
| 19 | Kestra Advisory Services, LLC | 41K | $12K | 0.0% | 0.047% | 0.00% |
| 20 | Newbridge Financial Services Group, Inc. | 41K | $12K | +925.0% | 0.047% | 0.00% |
| 21 | TWO SIGMA SECURITIES, LLC | 21K | $6K | -16.9% | 0.024% | 0.00% |
| 22 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 17K | $5K | -70.2% | 0.019% | 0.00% |
| 23 | Cetera Investment Advisers | 17K | $5K | 0.0% | 0.019% | 0.00% |
| 24 | HighTower Advisors, LLC | 16K | $5K | 0.0% | 0.018% | 0.00% |
| 25 | Radnor Capital Management, LLC | 15K | $4K | 0.0% | 0.017% | 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 MLSS β a direct measure of their conviction.
Filings activity in MLSS 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 | 31 | +0.0% | 3.95% | +0.20 pp | $1M | +5.3% |
| Q4 2025 | 31 | +0.0% | 3.75% | 2.43 pp | $1M | 39% |
| Q3 2025 | 31 | 11% | 6.18% | 2.72 pp | $2M | 31% |
| Q2 2025 | 35 | +17% | 8.90% | 2.92 pp | $3M | 25% |
| Q1 2025 | 30 | 14% | 11.82% | 0.84 pp | $4M | 6.6% |
| Q4 2024 | 35 | +0.0% | 12.66% | +1.02 pp | $4M | +8.8% |
| Q3 2024 | 35 | +9.4% | 11.64% | +3.48 pp | $4M | +43% |
| Q2 2024 | 32 | β | 8.16% | β | $3M | 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.
No recent Form 4 insider transactions on file for MLSS.
Quick answers to the most common questions about buying MLSS stock.
Based on Q1 2026 13F filings, institutional ownership of Milestone Scientific Inc. stands at 4.0%, held across 31 reporting institutions.
VANGUARD CAPITAL MANAGEMENT LLC is the largest reported institutional holder of MLSS, with approximately 1,986,648 shares worth $0.00B as of Q1 2026.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of MLSS, including CITADEL ADVISORS LLC, RENAISSANCE TECHNOLOGIES LLC, TWO SIGMA SECURITIES, LLC.
Our composite Smart Money Score for MLSS is 59 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
5 institutions opened new positions in MLSS during Q1 2026, while 5 fully exited. 21 added to existing positions and 4 trimmed.
MLSS institutional ownership rose by 0.20 percentage points quarter-over-quarter, with a net change of β holders.
The top 10 institutions account for 84.4% of all reported 13F value in MLSS, and the top 25 account for 99.1%.
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.