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Spero Therapeutics (SPRO) Ownership Overview
4.34% Insiders
4.03% Mutual Funds
0.09% Other Institutional Investors
4.13% ETFs
87.41% Public Companies and
Individual Investors
The ownership structure of Spero Therapeutics (SPRO) stock is a mix of institutional, retail, and individual investors. Approximately 8.25% of the company’s stock is owned by Institutional Investors, 4.34% is owned by Insiders, and 87.41% 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 | $207484 | |
Feb 09, 2026 | xxxxxxxxxxxxx | $44019 | |
Feb 05, 2026 | xxxxxxxxxxxxx | $101175 |
Top Shareholders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 1,989,230 | Institution | 3.42% | 2,327,399 | |
| 1,752,884 | Institution | 3.01% | 2,050,874 | |
| 1,012,091 | Insider | 1.74% | 1,184,146 | |
| 742,506 | Insider | 1.28% | 868,732 | |
| 421,956 | Institution | 0.72% | 493,689 | |
| 395,947 | Institution | 0.68% | 463,258 | |
| 162,311 | Insider | 0.28% | 189,904 | |
| 161,381 | Institution | 0.28% | 188,816 | |
| 138,268 | Institution | 0.24% | 161,774 | |
| 114,800 | Institution | 0.20% | 134,316 |
Top Mutual Fund Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 1,752,884 | Institution | 3.01% | 2,050,874 | |
| 395,947 | Institution | 0.68% | 463,258 | |
| 114,800 | Institution | 0.20% | 134,316 | |
| 28,565 | Institution | 0.05% | 33,421 | |
| 24,176 | Institution | 0.04% | 28,286 | |
| 22,820 | Institution | 0.04% | 26,699 | |
| 8,724 | Institution | 0.01% | 10,207 |
Top ETF Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 1,395,976 | Institution | 2.40% | 1,689,131 | |
| 593,254 | Institution | 1.02% | 717,837 | |
| 138,268 | Institution | 0.24% | 161,774 | |
| 94,703 | Institution | 0.16% | 110,803 | |
| 66,678 | Institution | 0.11% | 78,013 | |
| 63,741 | Institution | 0.11% | 77,764 | |
| 46,660 | Institution | 0.08% | 54,592 | |
| 2,490 | Institution | <0.01% | 3,038 | |
| 774 | Institution | <0.01% | 944 |
FAQ
Who Owns Spero Therapeutics Inc (SPRO)?
According to the latest TipRanks data, approximately 0.09% of the company's stock is held by institutional investors, 4.34% is held by insiders, and 87.41% is held by retail investors.
What percentage of Spero Therapeutics Inc (SPRO) stock is held by institutional investors?
According to the latest TipRanks data, approximately 0.09% of Spero Therapeutics Inc (SPRO) stock is held by institutional investors.
What percentage of Spero Therapeutics Inc (SPRO) stock is held by retail investors?
According to the latest TipRanks data, approximately 87.41% of Spero Therapeutics Inc (SPRO) stock is held by retail investors.
Who owns the most shares of Spero Therapeutics Inc (SPRO)?
Vanguard owns the most shares of Spero Therapeutics Inc (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.