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Buy Day today: Neutral (54) Mixed market breadth · no major macro event
SPRB

Spruce Biosciences, Inc.

Healthcare · Biotechnology

47.30$ -0.5% vs. previous close Closing price · As of: Sep 29, 2026

Ownership

Ownership Structure

Who owns Spruce Biosciences, Inc. (SPRB)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 70.2% of the shares are freely tradable; institutional investors hold 51.9%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 51.9%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 3.5%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 70.2%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 15.5%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 3Mio.

Largest Shareholders

Institutions

Institutions SPRB
Name Stake (%) Shares Change (%) Date
AIGH Capital Management, LLC 8.70 250,000 +0.0 06/30/2026
Millennium Management LLC 5.60 160,981 +43.9 06/30/2026
Ikarian Capital, LLC 4.22 121,356 +0.0 03/31/2026
ADAR1 Capital Management LLC 2.04 58,600 +1.0 03/31/2026
Citadel Advisors Llc 1.81 51,905 -25.8 06/30/2026
Alyeska Investment Group, L.P. 1.80 51,671 +0.0 03/31/2026
BOOTHBAY FUND MANAGEMENT, LLC 1.46 42,080 -12.2 03/31/2026

Funds

Funds SPRB
Name Stake (%) Shares Change (%) Date
Vanguard MStar Total Stk Mkt Idx Invest 2.96 84,935 +0.0 08/31/2026
Biotech Growth Ord 2.36 67,800 +0.0 05/31/2026
iShares Russell 2000 ETF 2.36 67,689 -0.5 08/31/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Data as of: September 29, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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