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Proteome Sciences PLC (PMSNF): Short Interest History

The most recent FINRA short interest report for PMSNF (settlement date October 31, 2025) shows 10,000 shares sold short , a change of 100.00% from the prior report .

Days to cover: 6.00.

FINRA settlement history

Settlement date Short interest Change Avg daily volume Days to cover
Oct 31, 2025 10,000 100.00% 1,667 6.00
Jul 15, 2025 40,000 0.00% 0 999.99
Jun 30, 2025 40,000 33.33% 2,000 20.00
Jun 13, 2025 30,000 200.00% 4,000 7.50
May 30, 2025 10,000 100.00% 4,000 2.50
May 15, 2024 3,000 0.00% 545 5.50
Apr 30, 2024 3,000 0.00% 0 999.99
Apr 15, 2024 3,000 0.00% 0 999.99
Mar 28, 2024 3,000 0.00% 0 999.99
Mar 15, 2024 3,000 0.00% 0 999.99
Feb 29, 2024 3,000 0.00% 0 999.99
Feb 15, 2024 3,000 0.00% 0 999.99
Jan 31, 2024 3,000 0.00% 267 11.24
Jan 12, 2024 3,000 0.00% 467 6.42
Dec 29, 2023 3,000 0.00% 244 12.30
Dec 15, 2023 3,000 0.00% 0 999.99
Nov 30, 2023 3,000 0.00% 0 999.99
Nov 15, 2023 3,000 0.00% 0 999.99
Oct 31, 2023 3,000 0.00% 0 999.99
Oct 13, 2023 3,000 0.00% 0 999.99
Sep 29, 2023 3,000 0.00% 200 15.00
Sep 15, 2023 3,000 0.00% 0 999.99
Aug 31, 2023 3,000 0.00% 0 999.99
Aug 15, 2023 3,000 0.00% 909 3.30

Frequently asked questions

What is short interest in PMSNF?

Short interest is the total number of PMSNF shares currently sold short but not yet covered or closed out. FINRA publishes this data twice monthly.

How is PMSNF short interest calculated?

Short interest is aggregated from member firm reports to FINRA. Every U.S. broker-dealer must report aggregate short positions in each security as of the 15th and last trading day of each month.

What does a high short interest mean?

Higher short interest can indicate bearish sentiment, but it also raises the potential for a short squeeze if positive news forces short sellers to cover their positions simultaneously. Compare short interest to float (short percent of float) for context.

Source: FINRA short interest reports, published bi-monthly.

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