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MLSS

Milestone Scientific Inc.

Company with tickers: MLSS

CIK
855683
CUSIP
59935P209
Shares Outstanding
88,075,170
13F Activity (30d)
27 filings 27 filers
Holders: 32
Total Value: $1,311,386
Total Shares: 4,522,054

Institutional Ownership Trend

14 quarters

Holder Concentration

Across 32 13F filers · Δ vs Dec 31, 2025
Top Holder
43.9%
Jun 2023 → Mar 2026 · range 0.0% – 100.0%
−8.0 pts
Top 5
71.5%
Jun 2023 → Mar 2026 · range 0.0% – 100.0%
−3.2 pts
Top 10
83.9%
Jun 2023 → Mar 2026 · range 0.0% – 100.0%
−2.2 pts
HHI
2,240
Jun 2023 → Mar 2026 · range 0 – 10,000
Moderately concentrated −712

Quarterly Activity

vs Dec 31, 2025
New
5
Increased
6
Decreased
6
Sold Out
4
Unchanged
15
Holder count: +1
Institutional value: +7.3%
Shares held: -0.1%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Small NFSG Corp +37,000 41,000
Mega LPL Financial LLC +20,000 124,945
Mid XTX Topco Ltd +14,436 45,359
Mega CITADEL ADVISORS LLC +13,360 167,135
Mid World Investment Advisors +4,000 104,000

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP −40,511 17,185
Mega UBS Group AG −33,428 62,500
Mega BlackRock, Inc. −5,365 65,453
Small TWO SIGMA SECURITIES, LLC −4,326 21,315
Large RENAISSANCE TECHNOLOGIES LLC −400 82,497

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mega VANGUARD CAPITAL MANAGEMENT LLC 1,986,648 $576,127
Mega VANGUARD FIDUCIARY TRUST CO 321,583 $93,259
Large COMMONWEALTH EQUITY SERVICES, LLC 44,782 $12,986
Mid Virtu Financial LLC 25,045 $7,263
Mega Vanguard Global Advisers, LLC 14,867 $4,311

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega VANGUARD GROUP INC 2,349,317 $634,315
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC 34,400 $9,288
Large HRT FINANCIAL LP 18,046 $4,872
Mega BANK OF AMERICA CORP /DE/ 575 $154
Filter: New 5 Increased 6 Reduced 6 Sold out 4 Unchanged 15
32 of 32 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega VANGUARD CAPITAL MANAGEMENT LLC $576,127 43.93% 1,986,648 View
Mega GEODE CAPITAL MANAGEMENT, LLC $178,826 13.64% 616,645 View
Mega VANGUARD FIDUCIARY TRUST CO Bank $93,259 7.11% 321,583 View
Mega CITADEL ADVISORS LLC $48,469 3.70% 167,135 View
Mega STATE STREET CORP $40,566 3.09% 139,885 View
Mega LPL Financial LLC $36,234 2.76% 124,945 View
Large Mariner, LLC $35,307 2.69% 121,750 View
Mega NORTHERN TRUST CORP Bank $32,658 2.49% 112,615 View
Mid World Investment Advisors $30,160 2.30% 104,000 View
Mid Carnegie Investment Counsel $29,050 2.22% 100,175 View
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $28,855 2.20% 99,500 View
Large RENAISSANCE TECHNOLOGIES LLC $23,924 1.82% 82,497 View
Mega BlackRock, Inc. $18,981 1.45% 65,453 View
Mega UBS Group AG $18,125 1.38% 62,500 View
Small Brookwood Investment Group LLC $14,239 1.09% 49,100 View
Mid XTX Topco Ltd $13,154 1.00% 45,359 View
Large COMMONWEALTH EQUITY SERVICES, LLC $12,986 0.99% 44,782 View
Mid Sequoia Financial Advisors, LLC $12,592 0.96% 43,422 View
Large Kestra Advisory Services, LLC $11,919 0.91% 41,100 View
Small NFSG Corp $11,890 0.91% 41,000 View
Mid Virtu Financial LLC $7,263 0.55% 25,045 View
Small TWO SIGMA SECURITIES, LLC Broker-Dealer $6,181 0.47% 21,315 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $4,983 0.38% 17,185 View
Large Cetera Investment Advisers $4,973 0.38% 17,150 View
Large HighTower Advisors, LLC $4,543 0.35% 15,666 View
Small Radnor Capital Management, LLC $4,350 0.33% 15,000 View
Mega Vanguard Global Advisers, LLC $4,311 0.33% 14,867 View
Mid OPPENHEIMER & CO INC $2,900 0.22% 10,000 View
Small DOCK STREET ASSET MANAGEMENT INC $2,900 0.22% 10,000 View
Mega MORGAN STANLEY $1,598 0.12% 5,511 View
Mega JPMORGAN CHASE & CO $63 0.00% 220 View
Mega CITIGROUP INC $0 0.00% 1 View

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