Want to see SPRO full AI Analyst Report?
Spero Therapeutics (SPRO) Ownership Overview
5.30% Insiders
4.06% Mutual Funds
23.33% Other Institutional Investors
3.64% ETFs
63.68% Public Companies and
Individual Investors
The ownership structure of Spero Therapeutics (SPRO) stock is a mix of institutional, retail, and individual investors. Approximately 31.02% of the company’s stock is owned by Institutional Investors, 5.30% is owned by Insiders, and 63.68% is owned by Public Companies and Individual Investors.
Recent Insider Trading Activity
Date | Name | Activity | Value |
|---|---|---|---|
May 06, 2026 | xxxxxxxxxxxxx | $63352 | |
Feb 09, 2026 | xxxxxxxxxxxxx | $44019 | |
Feb 09, 2026 | xxxxxxxxxxxxx | $207484 | |
Feb 05, 2026 | xxxxxxxxxxxxx | $101175 |
Top Shareholders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 1,752,884 | Institution | 3.03% | 3,856,345 | |
| 1,750,994 | Institution | 3.02% | 3,852,187 | |
| 1,012,091 | Insider | 1.75% | 2,226,600 | |
| 742,506 | Insider | 1.28% | 1,633,513 | |
| 703,294 | Insider | 1.21% | 1,547,247 | |
| 421,956 | Institution | 0.73% | 928,303 | |
| 395,947 | Institution | 0.68% | 871,083 | |
| 151,203 | Institution | 0.26% | 332,647 | |
| 114,800 | Institution | 0.20% | 252,560 | |
| 103,904 | Institution | 0.18% | 228,589 |
Top Mutual Fund Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 1,752,884 | Institution | 3.03% | 3,856,345 | |
| 395,947 | Institution | 0.68% | 871,083 | |
| 114,800 | Institution | 0.20% | 252,560 | |
| 28,565 | Institution | 0.05% | 62,843 | |
| 24,176 | Institution | 0.04% | 53,187 | |
| 22,820 | Institution | 0.04% | 50,204 | |
| 8,724 | Institution | 0.02% | 19,193 |
Top ETF Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 1,236,776 | Institution | 2.14% | 3,500,076 | |
| 514,218 | Institution | 0.89% | 1,455,237 | |
| 151,203 | Institution | 0.26% | 335,671 | |
| 65,997 | Institution | 0.11% | 145,853 | |
| 37,188 | Institution | 0.06% | 82,557 | |
| 36,811 | Institution | 0.06% | 81,352 | |
| 27,057 | Institution | 0.05% | 60,067 | |
| 25,054 | Institution | 0.04% | 55,369 | |
| 7,979 | Institution | 0.01% | 17,634 | |
| 4,874 | Institution | <0.01% | 10,772 |
FAQ
Who Owns Spero Therapeutics (SPRO)?
According to the latest TipRanks data, approximately 23.33% of the company's stock is held by institutional investors, 5.30% is held by insiders, and 63.68% is held by retail investors.
What percentage of Spero Therapeutics (SPRO) stock is held by institutional investors?
According to the latest TipRanks data, approximately 23.33% of Spero Therapeutics (SPRO) stock is held by institutional investors.
What percentage of Spero Therapeutics (SPRO) stock is held by retail investors?
According to the latest TipRanks data, approximately 63.68% of Spero Therapeutics (SPRO) stock is held by retail investors.
Who owns the most shares of Spero Therapeutics (SPRO)?
VANGUARD INDEX FUNDS owns the most shares of Spero Therapeutics (SPRO).
What is the significance of the ownership structure for a publicly traded company?
The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.