Ranked by reported Q4 2025 13F market value
Share of total reported institutional value in PPBT held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 470K | $309K | β | 10109.038% | 0.00% |
| 2 | TWO SIGMA INVESTMENTS, LP | 155K | $102K | β | 3343.082% | 0.00% |
| 3 | SmartHarvest Portfolios, LLC | 47K | $31K | β | 1021.175% | 0.01% |
| 4 | BNP PARIBAS ARBITRAGE, SA | 21K | $14K | +86.9% | 453.518% | 0.00% |
| 5 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 2K | $11K | +2262.3% | 43.211% | 0.00% |
| 6 | TWO SIGMA ADVISERS, LP | 15K | $10K | β | 316.333% | 0.00% |
| 7 | SIMPLEX TRADING, LLC | 9K | $6K | +5779.6% | 198.644% | 0.00% |
| 8 | RHUMBLINE ADVISERS | 7K | $5K | +584.4% | 159.070% | 0.00% |
| 9 | MORGAN STANLEY | 6K | $4K | -45.0% | 131.074% | 0.00% |
| 10 | UBS Group AG | 3K | $2K | -47.9% | 66.667% | 0.00% |
| 11 | GAMMA Investing LLC | 3K | $2K | -77.6% | 61.029% | 0.00% |
| 12 | SBI Securities Co., Ltd. | 320 | $210 | +1500.0% | 6.886% | 0.00% |
| 13 | GROUP ONE TRADING, L.P. | 294 | $193 | β | 6.327% | 0.00% |
| 14 | EverSource Wealth Advisors, LLC | 56 | $37 | 0.0% | 1.205% | 0.00% |
| 15 | JONES FINANCIAL COMPANIES LLLP | 50 | $33 | β | 1.076% | 0.00% |
| 16 | Global Retirement Partners, LLC | 16 | $11 | 0.0% | 0.344% | 0.00% |
| 17 | Tradewinds Capital Management, LLC | 10 | $7 | -90.0% | 0.215% | 0.00% |
| 18 | ROYAL BANK OF CANADA | 107 | $0 | 0.0% | 2.303% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in PPBT β a direct measure of their conviction.
Filings activity in PPBT during Q4 2025, grouped by how each filer changed its position.
Institutions that opened a new PPBT position in Q4 2025
Institutions that fully closed their PPBT position in Q4 2025
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q4 2025 | 18 | +13% | 199.99% | +0.00 pp | $0M | +936% |
| Q3 2025 | 16 | +6.7% | 199.99% | +0.00 pp | $0M | 64% |
| Q2 2025 | 15 | +50% | 199.99% | +0.00 pp | $0M | 0.4% |
| Q1 2025 | 10 | 33% | 199.99% | +0.00 pp | $0M | 64% |
| Q4 2024 | 15 | +36% | 199.99% | +0.00 pp | $0M | 60% |
| Q3 2024 | 11 | 48% | 199.99% | +0.00 pp | $1M | +25% |
| Q2 2024 | 21 | +0.0% | 199.99% | +0.00 pp | $1M | 56% |
| Q1 2024 | 21 | β | 199.99% | β | $2M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying PPBT stock.
Based on Q4 2025 13F filings, institutional ownership of Purple Biotech Ltd. stands at 200.0%, held across 18 reporting institutions.
SUSQUEHANNA INTERNATIONAL GROUP, LLP is the largest reported institutional holder of PPBT, with approximately 469,767 shares worth $0.00B as of Q4 2025.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of PPBT, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, TWO SIGMA INVESTMENTS, LP, TWO SIGMA ADVISERS, LP.
Our composite Smart Money Score for PPBT is 64 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
6 institutions opened new positions in PPBT during Q4 2025, while 4 fully exited. 6 added to existing positions and 4 trimmed.
PPBT institutional ownership rose by 0.00 percentage points quarter-over-quarter, with a net change of +2 holders.
The top 10 institutions account for 99.5% of all reported 13F value in PPBT, and the top 25 account for 100.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Purple Biotech Ltd. (PPBT) Institutional Ownership