Psyence Biomedical Ltd. (PBM) Ownership

NASDAQ: PBMTop holders, insider trades and short interest.

PBM ownership summary

as of October 18, 2026
Institutions
13.2%
of shares outstanding
Insiders
2.97%
of shares outstanding
Shares outstanding
3.8M
Float
1.1M
shares available to trade
Short interest
1.01%
27K shares short
Days to cover
0.31
short interest down 44.3% vs prior month
  • Institutions 13.24%
  • Insiders 2.97%
  • Other investors 83.79%

PBM top institutional holders

10 largest
Psyence Biomedical Ltd. Common Shares top institutional holders
#Holder% of sharesSharesValueChangeReported
1Parallel Advisors, LLC3.97%151K$638,275—June 30, 2026
2AdvisorShares Investments, LLC3.20%122K$515,616+122,184 (0.0%)June 30, 2026
3Morgan Stanley - Brokerage Accounts0.99%38K$159,533+37,804 (0.0%)June 30, 2026
4Jane Street Group LLC0.80%30K$128,419+30,431 (0.0%)June 30, 2026
5XTX Topco Ltd0.40%15K$63,697+15,094 (0.0%)June 30, 2026
6Citadel Advisors Llc0.31%12K$49,344+11,693 (0.0%)June 30, 2026
7Stonehage Fleming Financial Services Holdings Ltd<0.01%89$376—June 30, 2026
8UBS Group AG<0.01%60$253+60 (0.0%)June 30, 2026
9Caitlin John LLC<0.01%35$148+35 (0.0%)June 30, 2026
10Bank of America Corp0.00%——−535 (−100.0%)March 31, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 10, 7 holders added 217K shares and 1 cut 535.

PBM top mutual fund and ETF holders

1 largest
Psyence Biomedical Ltd. Common Shares top fund holders
#Holder% of sharesSharesValueChangeReported
1AdvisorShares Psychedelics ETF6.78%259K$1.1M—September 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

PBM shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns PBM

Institutional investors own 13.2% of Psyence Biomedical Ltd.'s shares and insiders 2.97%. The largest holder is Parallel Advisors, LLC with 3.97% of the shares (151K), as of June 30, 2026. Among the top 10 institutions, 7 added shares and 1 reduced their stake in the latest filings. Short interest is 1.01% of the float, or 0.31 days of average trading volume. The share count fell 95.5% since 2021.

Related: PBM key metrics. See the PBM stock overview for the latest quote and news.

PBM ownership FAQ

Who owns the most Psyence Biomedical Ltd. stock?

The largest shareholders of Psyence Biomedical Ltd. are Parallel Advisors, LLC (3.97%), AdvisorShares Investments, LLC (3.20%), Morgan Stanley - Brokerage Accounts (0.99%), Jane Street Group LLC (0.80%), XTX Topco Ltd (0.40%).

What percentage of Psyence Biomedical Ltd. is owned by institutions?

Institutions hold 13.2% of Psyence Biomedical Ltd.'s shares outstanding; insiders hold 2.97%.

Which funds own Psyence Biomedical Ltd.?

The largest fund holders of Psyence Biomedical Ltd. are AdvisorShares Psychedelics ETF (6.78%).

What is Psyence Biomedical Ltd.'s short interest?

27K shares of Psyence Biomedical Ltd. were sold short, 1.01% of the float; at the average daily volume it would take 0.31 days to cover.

How many shares of Psyence Biomedical Ltd. are outstanding?

Psyence Biomedical Ltd. has 3.8M shares outstanding, of which 1.1M are in the public float.

Biotechnology: ownership