Silo Pharma, Inc. (SILO) Ownership
SILO ownership summary
as of October 18, 2026- Institutions
- 5.8% of shares outstanding
- Insiders
- 8.17% of shares outstanding
- Shares outstanding
- 2.1M
- Float
- 1.6M shares available to trade
- Short interest
- 2.18% 35K shares short
- Days to cover
- 0.67 short interest up 19.9% vs prior month
- Institutions 5.80%
- Insiders 8.17%
- Other investors 86.03%
SILO top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | AdvisorShares Investments, LLC | 8.51% | 76K | $89,187 | +31,315 (+70.7%) | June 30, 2026 |
| 2 | Citadel Advisors Llc | 1.89% | 17K | $19,824 | +15,370 (+1,074.8%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 1.35% | 12K | $14,108 | +11,208 (+1,498.4%) | June 30, 2026 |
| 4 | Vanguard Fiduciary Trust Co | 0.10% | 874 | $1,031 | +1 (+0.1%) | June 30, 2026 |
| 5 | Tower Research Capital LLC | 0.02% | 181 | $214 | +69 (+61.6%) | June 30, 2026 |
| 6 | IFP Advisors, LLC | 0.02% | 175 | $206 | +163 (+1,358.3%) | June 30, 2026 |
| 7 | HARBOUR INVESTMENTS, INC. | <0.01% | 14 | $17 | +14 (0.0%) | June 30, 2026 |
| 8 | Citigroup Inc | <0.01% | 1 | $1 | +1 (0.0%) | June 30, 2026 |
| 9 | DRW Securities, LLC | 0.00% | — | — | −333,733 (−100.0%) | March 31, 2026 |
| 10 | State Street Corp | 0.00% | — | — | −833 (−100.0%) | June 30, 2026 |
| 11 | Susquehanna International Group, LLP | 0.00% | — | — | −4,187 (−100.0%) | June 30, 2026 |
| 12 | Jane Street Group LLC | 0.00% | — | — | −2,984 (−100.0%) | June 30, 2026 |
| 13 | Wells Fargo & Co | 0.00% | — | — | −1 (−100.0%) | June 30, 2026 |
| 14 | Westside Investment Management, Inc. | 0.00% | — | — | −94 (−100.0%) | March 31, 2026 |
| 15 | UBS Group AG | 0.00% | — | — | −6,043 (−100.0%) | March 31, 2026 |
| 16 | Geode Capital Management, LLC | 0.00% | — | — | −12,003 (−100.0%) | June 30, 2026 |
| 17 | LPL Financial Corp | 0.00% | — | — | −836 (−100.0%) | June 30, 2026 |
| 18 | Virtu Financial LLC | 0.00% | — | — | −18,418 (−100.0%) | March 31, 2026 |
| 19 | XTX Topco Ltd | 0.00% | — | — | −1,139 (−100.0%) | June 30, 2026 |
| 20 | TWO SIGMA SECURITIES, LLC | 0.00% | — | — | −967 (−100.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 8 holders added 58K shares and 12 cut 381K.
SILO top mutual fund and ETF holders
4 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | AdvisorShares Psychedelics ETF | 11.65% | 103K | $122,097 | — | September 30, 2026 |
| 2 | Fidelity Extended Market Index | 0.96% | 8,568 | $10,110 | +2,638 (+44.5%) | August 31, 2026 |
| 3 | Fidelity Series Total Market Index | 0.25% | 2,179 | $2,571 | — | August 31, 2026 |
| 4 | Fidelity Total Market Index | 0.03% | 260 | $307 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
SILO insider transactions
latest 13| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2024-04-04 | Eric Weisblum | Buy | $1.96 | 600 | $1,176 |
| 2024-04-01 | Eric Weisblum | Buy | $1.91 | 1,100 | $2,101 |
| 2024-03-28 | Eric Weisblum | Buy | $1.94 | 3,408 | $6,612 |
| 2023-12-19 | Eric Weisblum | Buy | $1.63 | 500 | $815 |
| 2023-12-14 | Eric Weisblum | Buy | $1.50 | 200 | $300 |
| 2023-12-07 | Eric Weisblum | Buy | $1.36 | 324 | $441 |
| 2023-12-05 | Eric Weisblum | Buy | $1.39 | 600 | $834 |
| 2023-11-30 | Eric Weisblum | Buy | $1.53 | 1,000 | $1,530 |
| 2023-11-27 | Eric Weisblum | Buy | $1.78 | 250 | $445 |
| 2023-11-22 | Eric Weisblum | Buy | $1.68 | 400 | $672 |
| 2023-11-16 | Eric Weisblum | Buy | $1.33 | 1,100 | $1,463 |
| 2023-05-26 | Daniel E Ryweck | Buy | $2.13 | 1,000 | $2,130 |
| 2023-05-17 | Eric Weisblum | Buy | $2.06 | 2,500 | $5,150 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
SILO shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns SILO
Institutional investors own 5.8% of Silo Pharma's shares and insiders 8.17%. The largest holder is AdvisorShares Investments, LLC with 8.51% of the shares (76K), as of June 30, 2026. Among the top 20 institutions, 8 added shares and 12 reduced their stake in the latest filings. Short interest is 2.18% of the float, or 0.67 days of average trading volume. The share count rose 1,289.5% since 2014.
Related: SILO key metrics. See the SILO stock overview for the latest quote and news.
SILO ownership FAQ
Who owns the most Silo Pharma stock?
The largest shareholders of Silo Pharma are AdvisorShares Investments, LLC (8.51%), Citadel Advisors Llc (1.89%), Vanguard Capital Management, LLC (1.35%), Vanguard Fiduciary Trust Co (0.10%), Tower Research Capital LLC (0.02%).
What percentage of Silo Pharma is owned by institutions?
Institutions hold 5.8% of Silo Pharma's shares outstanding; insiders hold 8.17%.
Which funds own Silo Pharma?
The largest fund holders of Silo Pharma are AdvisorShares Psychedelics ETF (11.65%), Fidelity Extended Market Index (0.96%), Fidelity Series Total Market Index (0.25%), Fidelity Total Market Index (0.03%).
What is Silo Pharma's short interest?
35K shares of Silo Pharma were sold short, 2.18% of the float; at the average daily volume it would take 0.67 days to cover.
Are insiders buying or selling Silo Pharma?
Of the latest 13 reported insider transactions in Silo Pharma (since May 17, 2023), 13 were purchases and 0 were sales.
How many shares of Silo Pharma are outstanding?
Silo Pharma has 2.1M shares outstanding, of which 1.6M are in the public float.