North Star Investment Management Corp. GLSI — GREENWICH LIFESCIENCES INC COM

Ownership history in North Star Investment Management Corp.  ·  19 quarters on record

AI Ownership Summary

North Star Investment Management Corp. reported GREENWICH LIFESCIENCES INC COM (GLSI) in 19 quarterly 13F filings from 2024 Q1 through 2026 Q1. The latest visible filing shows GLSI at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this GLSI ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was North Star Investment Management Corp.'s position in GREENWICH LIFESCIENCES INC COM, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

GLSI was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2026 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q1 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

GLSI stock page North Star Investment Management Corp. fund profile North Star Investment Management Corp. full holdings
How North Star Investment Management Corp. held GLSI — position size vs. price
% of Fund (quarterly)    GLSI price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 9 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 UNCHANGED — — — 51 — 0% 0.00% $1K 2026-04-23 $23.67
2025 Q4 UNCHANGED — — — 51 — 0% 0.00% $1K 2026-01-30 $30.07
2025 Q3 UNCHANGED — — — 51 — 0% 0.00% $507 2025-10-22 $9.06
2025 Q2 UNCHANGED — — — 51 — 0% 0.00% $463 2025-07-15 $10.08
2025 Q1 UNCHANGED — — — 51 — 0% 0.00% $487 2025-04-17 $8.95
2024 Q4 UNCHANGED — — — 51 — 0% 0.00% $573 2025-02-10 $12.23
2024 Q3 UNCHANGED — — — 51 — 0% 0.00% $733 2024-10-30 $14.39
2024 Q2 UNCHANGED — — — 51 — 0% 0.00% $880 2024-08-06 $14.18
2024 Q1 UNCHANGED — — — 51 — 0% 0.00% $1K 2024-04-30 $12.42
10 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding GLSI

As of 2026 Q1 — sorted by position size

Informed Momentum Co LLC 3Y 7Y 0.06% Ancora Advisors LLC 3Y 7Y 0.02% NFSG Corp 3Y 0.01% STRS OHIO 3Y 7Y 0.0% STATE OF WISCONSIN INVESTMENT BOARD 3Y 7Y 0.0% Russell Investments Group, Ltd. 3Y 7Y 0.0% Tower Research Capital LLC (TRC) 3Y 7Y 0.0% MARSHALL WACE, LLP 3Y 7Y 0.0% SEI INVESTMENTS CO 3Y 7Y 0.0% Nuveen, LLC 0.0%

FAQ About North Star Investment Management Corp. and GLSI

These are the practical questions this page is built to answer before you even open the full history table.

How long has North Star Investment Management Corp. reported owning GLSI?

North Star Investment Management Corp. reported GLSI across 9 quarterly 13F filings, from 2024 Q1 through 2026 Q1.

What was the largest reported GLSI position in North Star Investment Management Corp.'s portfolio?

The largest reported portfolio weight for GLSI was 0.00% in 2026 Q1.

What is the latest reported GLSI position on this page?

The most recent filing on this page is 2026 Q1, when North Star Investment Management Corp. reported 51 shares, equal to 0.00% of portfolio, with an estimated market value of $1K.

What does the chart on this GLSI ownership page compare?

The chart compares North Star Investment Management Corp.'s quarterly GLSI portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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