Silo Pharma, Inc.
Silo Pharma, Inc. (SILO) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SILO · as of Sep 30, 2025
Ownership Breakdown
14
Institutional Holders
▲ 1 vs Q2
$1.07M
Total Inst. Value
▲ $813,541 vs Q2
904,682
Shares Outstanding
freeFloat 95.47%
1.55M
13F Shares Held
▲ 1.14M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
SILO largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
ANSON FUNDS MANAGEMENT LP apparel & other finishd prods of fabrics & similar matl | 952.4K | 15.17% | 15.17% | $657.14M | Nov 14, 2025 | NEW |
ADVISORSHARES INVESTMENTS LLC apparel & other finishd prods of fabrics & similar matl | 364.9K | 5.81% | 5.81% | $251.77M | Nov 5, 2025 | ▲ 180.6K |
VIRTU FINANCIAL LLC apparel & other finishd prods of fabrics & similar matl | 107.8K | 1.72% | 1.72% | $74.00M | Nov 14, 2025 | NEW |
GEODE CAPITAL MANAGEMENT, LLC apparel & other finishd prods of fabrics & similar matl | 39.6K | 63.05% | 63.05% | $27.32M | Nov 12, 2025 | ▲ 289 |
JANE STREET GROUP, LLC apparel & other finishd prods of fabrics & similar matl | 16.8K | 26.71% | 26.71% | $11.57M | Nov 14, 2025 | NEW |
TWO SIGMA SECURITIES, LLC apparel & other finishd prods of fabrics & similar matl | 16.5K | 26.23% | 26.23% | $11.37M | Nov 14, 2025 | ▼ 26.7K |
VANGUARD GROUP INC apparel & other finishd prods of fabrics & similar matl | 16.3K | 26.01% | 26.01% | $11.27M | Nov 7, 2025 | — held |
STONEX GROUP INC. apparel & other finishd prods of fabrics & similar matl | 13.4K | 21.39% | 21.39% | $9.27M | Nov 14, 2025 | NEW |
STATE STREET CORP apparel & other finishd prods of fabrics & similar matl | 12.5K | 19.91% | 19.91% | $8.63M | Nov 14, 2025 | — held |
UBS GROUP AG apparel & other finishd prods of fabrics & similar matl | 9.0K | 14.31% | 14.31% | $6.20M | Nov 13, 2025 | NEW |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
3
Increased
+181.0K shares6
New Positions
first time holders2
Decreased
−26.8K shares5
Sold Out
fully exitedNet shares change (top 50)
+154.2K
+181.0K / −26.8K
Net new holders
+2
6 new / 5 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SILO insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
6
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Weisblum Eric Chief Executive Officer | Dec 15, 2025 | Purchase | 2,500 | $0.42 | $1.1K | 216.9K | Form 4 ↗ |
Weisblum Eric Chief Executive Officer | Dec 15, 2025 | Purchase | 2,500 | $0.41 | $1.0K | 214.4K | Form 4 ↗ |
Weisblum Eric Chief Executive Officer | Nov 21, 2025 | Purchase | 1,000 | $0.36 | $365 | 211.9K | Form 4 ↗ |
Weisblum Eric Chief Executive Officer | Nov 20, 2025 | Purchase | 1,000 | $0.37 | $370 | 210.9K | Form 4 ↗ |
Weisblum Eric Chief Executive Officer | Nov 19, 2025 | Purchase | 4,500 | $0.41 | $1.8K | 209.9K | Form 4 ↗ |
Weisblum Eric Chief Executive Officer | Nov 18, 2025 | Purchase | 7,500 | $0.40 | $3.0K | 205.4K | Form 4 ↗ |
Weisblum Eric Chief Executive Officer | May 27, 2025 | Purchase | 10,000 | $0.43 | $4.3K | 197.9K | Form 4 ↗ |
Linsley Wayne director | May 23, 2025 | Award | 50,000 | $0.43 | $21.4K | 53.4K | Form 4 ↗ |
Munoz Kevin director | May 23, 2025 | Award | 50,000 | $0.43 | $21.4K | 53.4K | Form 4 ↗ |
Ryweck Daniel E. Chief Financial Officer | May 23, 2025 | Award | 50,000 | $0.43 | $21.4K | 55.0K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Silo Pharma, Inc. (SILO) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 4.53%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Silo Pharma, Inc. is ANSON FUNDS MANAGEMENT LP, holding approximately 952,381 shares — equal to 15.17% of outstanding shares — as of September 30, 2025.
A total of 14 institutional investors currently hold SILO stock, with a combined institutional value of approximately $1,069,833 as of the most recent 13F filing period.
Frequently asked questions
SILO ownershipSilo Pharma, Inc. (SILO) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is ANSON FUNDS MANAGEMENT LP with a 15.17% stake. Company insiders hold 4.53%. Data sourced from SEC Form 13F as of September 30, 2025.