SILO
Silo Pharma, Inc.Company with tickers: SILO
CIK
1514183
CUSIP
82711P201
Shares Outstanding
1,084,440
13F Activity (30d)
12 filings
12 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 15
Total Value: $380,083
Total Shares: 1,055,806
Institutional Ownership Trend
Holder Concentration
Across 15 13F filers · Δ vs Dec 31, 2025Top Holder
62.9%
+13.5 pts
Top 5
92.2%
+0.1 pts
Top 10
98.8%
−0.8 pts
HHI
4,313
Highly concentrated
+1,015
Quarterly Activity
vs Dec 31, 2025
New
6
Increased
4
Decreased
3
Sold Out
6
Unchanged
2
Holder count:
0
Institutional value:
-7.9%
Shares held:
-13.0%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega GEODE CAPITAL MANAGEMENT, LLC | +87,126 | 180,031 | |
| Small AdvisorShares Investments LLC | +64,458 | 663,965 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | +33,218 | 62,795 | |
| Mega JANE STREET GROUP, LLC | +10,390 | 44,763 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mid XTX Topco Ltd | −39,816 | 17,083 | |
| Mega CITIGROUP INC | −3,450 | 1 | |
| Mid Tower Research Capital LLC (TRC) | −18 | 1,677 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega CITADEL ADVISORS LLC | 21,448 | $7,721 | |
| Small TWO SIGMA SECURITIES, LLC | 14,503 | $5,221 | |
| Mega VANGUARD FIDUCIARY TRUST CO | 13,100 | $4,716 | |
| Mega LPL Financial LLC | 12,534 | $4,512 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 11,221 | $4,039 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mid DRW Securities, LLC | 333,733 | $113,469 | |
| Mega VANGUARD GROUP INC | 24,321 | $8,269 | |
| Mid Virtu Financial LLC | 18,418 | $6,262 | |
| Mega UBS Group AG | 6,043 | $2,054 | |
| Mega BANK OF AMERICA CORP /DE/ | 114 | $38 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Small AdvisorShares Investments LLC | $239,027 | 62.89% | 663,965 | Shares | Sole | 2026-04-28 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $64,810 | 17.05% | 180,031 | Shares | Defined | 2026-05-15 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $22,606 | 5.95% | 62,795 | Shares | Other | 2026-05-15 | ||||
| Mega JANE STREET GROUP, LLC | $16,113 | 4.24% | 44,763 | Shares | Defined | 2026-05-12 | ||||
| Mega CITADEL ADVISORS LLC | $7,721 | 2.03% | 21,448 | Shares | Defined | 2026-05-15 | ||||
| Mid XTX Topco Ltd | $6,149 | 1.62% | 17,083 | Shares | Defined | 2026-05-15 | ||||
| Small TWO SIGMA SECURITIES, LLC Broker-Dealer | $5,221 | 1.37% | 14,503 | Shares | Sole | 2026-05-15 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $4,716 | 1.24% | 13,100 | Shares | Defined | 2026-05-08 | ||||
| Mega LPL Financial LLC | $4,512 | 1.19% | 12,534 | Shares | Sole | 2026-05-06 | ||||
| Mega STATE STREET CORP | $4,500 | 1.18% | 12,500 | Shares | Defined | 2026-05-15 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $4,039 | 1.06% | 11,221 | Shares | Defined | 2026-05-15 | ||||
| Mid Tower Research Capital LLC (TRC) | $603 | 0.16% | 1,677 | Shares | Defined | 2026-05-15 | ||||
| Mid IFP Advisors, Inc | $63 | 0.02% | 175 | Shares | Sole | 2026-04-13 | ||||
| Mega WELLS FARGO & COMPANY/MN | $3 | 0.00% | 10 | Shares | Defined | 2026-05-11 | ||||
| Mega CITIGROUP INC | $0 | 0.00% | 1 | Shares | Defined | 2026-05-11 | ||||
| No holders match your search. | ||||||||||