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View all 28 holding institutions

Across its top 20 institutional holders, UG's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 12/100, avg. turnover score 24/100).

Notable Holders

UG ranks #7638 out of 37701 tracked stocks by institutional interest, inside the more closely watched half of our coverage.

UG is a disclosed holding of Jim Simons (Renaissance Technologies), one of the tracked superinvestors on AlphaSMO — it makes up 0.0% of that fund's own 13F portfolio.

28 institutions disclose a position in UG, but none treat it as a major bet — even Teton Advisors, LLC, its most concentrated holder, allocates just 0.2% of its own portfolio to it.

Parthenon LLC has added to its UG position for two straight quarters, increasing it by $23.3K to reach $362.6K today.

* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.

Company Fundamentals

UG posted net income of $2.5M over the trailing twelve months.

Profitable — net income of $2.5M over the trailing twelve months
Revenue grew 20.3% year over year
Net income declined year over year, from $2.6M to $2.5M
Generated $2.0M in positive operating cash flow
Liabilities run 0.17x equity — within a conventional range

Price Chart

UG Quarterly 13F Institutional Trade Shifts

Recent Activity

+$81.2K

Total Buy Value

$215.3K

Total Sell Value

New buy3

Trim5

Add7

Sold out1

Net Buyers

Net Sellers

Top Movers

Q2 2026

Top 5 Institutional Movers

Bridgeway Capital Management

-$89.3K

Sold out

Vanguard GroupAggregated

+$75.6K

Add

Gamco Investors. Et Al

+$72.3K

Add

Dimensional Fund Advisors LP

+$68.0K

Add

BlackRock

+$26.9K

Add

Data by AlphaSMO • Not financial advice.

Smart Money Convergence

UG does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.

13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.

Recent UG Insider Buying & Selling Activity (Form 4)

Congress Trading (STOCK Act)

Form 144 Pre-Sale Notices

No Form 144 planned sale filings in the last 90 days

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

Filings (14d)

Data as of 2026-08-07

2026-08-07

United Guardian filed an 8-K on August 7, 2026, to announce that it had issued a press release about its operating results. That press release is attached as Exhibit 99.1. The filing excerpt itself doesn't include any actual numbers, so the financial details are in the attachment.

View Full Filing (SEC EDGAR)

View all Form 8-K filings

CUSIP

910571108

FAQ

Who are the top institutional investors holding UNITED GUARDIAN INC (UG)?

Major stakeholders currently include Renaissance Technologies LLC ($1.2M), Gamco Investors, Inc. Et Al ($1.2M), Vanguard Capital Management LLC ($916.3K). Based on the latest 13F filings, there are a total of 28 tracked investment funds and institutions maintaining positions in UG.

What is the overall institutional sentiment toward UG recently?

Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $44.8K, driven by 10 managers accumulating shares while 6 reduced their exposure.

Which institutions have been selling or reducing their UG positions?

In the latest period, 5 funds trimmed their holdings, and 1 managers completely exited their positions. The aggregate reported sell value was $215.3K.

Are there any notable investors adding UG to their portfolios?

Yes, buying activity remains notable. 3 institutions opened new positions in {ticker}, and 7 existing holders added to their shares. The total reported buy value for the quarter amounted to $81.2K.

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Developer Access

Access UG's institutional ownership data programmatically:

REST API

curl https://alphasmo.com/api/v1/market/stock/UG

CLI

npx alphasmo stocks get UG

Full API & MCP documentation →