Amesite Inc. (AMST) Ownership
AMST ownership summary
as of October 18, 2026- Institutions
- 6.0% of shares outstanding
- Insiders
- 32.83% of shares outstanding
- Shares outstanding
- 6.5M
- Float
- 4.5M shares available to trade
- Short interest
- 1.11% 50K shares short
- Days to cover
- 0.38 short interest up 96.4% vs prior month
- Institutions 5.99%
- Insiders 32.83%
- Other investors 61.18%
AMST top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | The Colony Group LLC | 2.56% | 167K | $139,424 | +1,360 (+0.8%) | June 30, 2026 |
| 2 | The Goldman Sachs Group Inc | 0.91% | 59K | $49,499 | +59,423 (0.0%) | June 30, 2026 |
| 3 | Geode Capital Management, LLC | 0.50% | 33K | $27,224 | −20,897 (−39.0%) | June 30, 2026 |
| 4 | State Street Corp | 0.48% | 32K | $26,319 | — | June 30, 2026 |
| 5 | Vanguard Capital Management, LLC | 0.46% | 30K | $25,157 | — | June 30, 2026 |
| 6 | Warberg Asset Management LLC | 0.22% | 14K | $11,901 | +14,287 (0.0%) | June 30, 2026 |
| 7 | Vanguard Fiduciary Trust Co | 0.21% | 14K | $11,463 | — | June 30, 2026 |
| 8 | Jane Street Group LLC | 0.19% | 13K | $10,629 | +12,760 (0.0%) | June 30, 2026 |
| 9 | Renaissance Technologies Corp | 0.15% | 10K | $8,413 | +10,100 (0.0%) | June 30, 2026 |
| 10 | Advisor Group Holdings, Inc. | 0.15% | 10K | $8,330 | — | June 30, 2026 |
| 11 | Tower Research Capital LLC | 0.06% | 4,133 | $3,443 | +2,382 (+136.0%) | June 30, 2026 |
| 12 | UBS Group AG | 0.05% | 3,392 | $2,826 | +713 (+26.6%) | June 30, 2026 |
| 13 | Royal Bank of Canada | 0.04% | 2,704 | $2,252 | +2,704 (0.0%) | June 30, 2026 |
| 14 | DRW Securities, LLC | 0.00% | — | — | −22,956 (−100.0%) | March 31, 2026 |
| 15 | Caitong International Asset Management Co., Limited. | 0.00% | — | — | −3 (−100.0%) | June 30, 2026 |
| 16 | Citigroup Inc | 0.00% | — | — | −1 (−100.0%) | June 30, 2026 |
| 17 | JPMorgan Chase & Co | 0.00% | — | — | −5,904 (−100.0%) | June 30, 2026 |
| 18 | Two Sigma Investments LLC | 0.00% | — | — | −18,270 (−100.0%) | March 31, 2026 |
| 19 | Virtu Financial LLC | 0.00% | — | — | −14,708 (−100.0%) | March 31, 2026 |
| 20 | XTX Topco Ltd | 0.00% | — | — | −10,153 (−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 104K shares and 8 cut 93K.
AMST top mutual fund and ETF holders
3 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Extended Market Index | 0.30% | 19K | $16,193 | −104 (−0.5%) | August 31, 2026 |
| 2 | Fidelity Series Total Market Index | 0.07% | 4,846 | $4,037 | — | August 31, 2026 |
| 3 | Fidelity Nasdaq Composite Index | 0.04% | 2,596 | $2,162 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
AMST insider transactions
latest 2| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-01-07 | Gilbert S Omenn | Buy | $3.00 | 3,333 | $9,999 |
| 2023-12-20 | Ann Marie Sastry | Buy | $1.85 | 10,000 | $18,500 |
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.
AMST shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns AMST
Institutional investors own 6.0% of Amesite's shares and insiders 32.83%. The largest holder is The Colony Group LLC with 2.56% of the shares (167K), as of June 30, 2026. Among the top 20 institutions, 8 added shares and 8 reduced their stake in the latest filings. Short interest is 1.11% of the float, or 0.38 days of average trading volume. The share count rose 5,389.4% since 2017.
Related: AMST key metrics. See the AMST stock overview for the latest quote and news.
AMST ownership FAQ
Who owns the most Amesite stock?
The largest shareholders of Amesite are The Colony Group LLC (2.56%), The Goldman Sachs Group Inc (0.91%), Geode Capital Management, LLC (0.50%), State Street Corp (0.48%), Vanguard Capital Management, LLC (0.46%).
What percentage of Amesite is owned by institutions?
Institutions hold 6.0% of Amesite's shares outstanding; insiders hold 32.83%.
Which funds own Amesite?
The largest fund holders of Amesite are Fidelity Extended Market Index (0.30%), Fidelity Series Total Market Index (0.07%), Fidelity Nasdaq Composite Index (0.04%).
What is Amesite's short interest?
50K shares of Amesite were sold short, 1.11% of the float; at the average daily volume it would take 0.38 days to cover.
Are insiders buying or selling Amesite?
Of the latest 2 reported insider transactions in Amesite (since December 20, 2023), 2 were purchases and 0 were sales.
How many shares of Amesite are outstanding?
Amesite has 6.5M shares outstanding, of which 4.5M are in the public float.