Fund shareholders of Spero Therapeutics Inc
ISIN US84833T1034 · United States · LEI 54930074G13LHWJT2323
- Fund shareholders
- 29
- Of which ETFs
- 8 21 other funds
- Value held
- 6.9M $
- Share of capital
- 5.4 % of 58.2M shares on Aug 7, 2026
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1,395,976 | 3.1M $ | 0.00 % | 2.40 % | as of Jun 30, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 593,254 | 1.3M $ | 0.00 % | 1.02 % | as of Jun 30, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 224,070 | 634.1K $ | 0.00 % | 0.38 % | as of May 31, 2026 ↗ |
| iShares Micro-Cap ETF iShares Trust | 151,203 | 334.2K $ | 0.02 % | 0.26 % | as of Jun 30, 2026 ↗ |
| Fidelity Total Market Index Fund Fidelity Concord Street Trust | 107,797 | 305.1K $ | 0.00 % | 0.19 % | as of May 31, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 67,356 | 190.6K $ | 0.00 % | 0.12 % | as of May 31, 2026 ↗ |
| Dimensional U.S. Small Cap ETF Dimensional ETF Trust | 65,997 | 77.2K $ | 0.00 % | 0.11 % | as of Jul 31, 2026 ↗ |
| Ultra-Small Company Market Fund Bridgeway Funds, Inc. | 64,800 | 143.2K $ | 0.10 % | 0.11 % | as of Jun 30, 2026 ↗ |
| ACUITAS US MICROCAP FUND FORUM FUNDS II | 56,457 | 124.8K $ | 0.11 % | 0.10 % | as of Jun 30, 2026 ↗ |
| Omni Small-Cap Value Fund Bridgeway Funds, Inc. | 50,000 | 110.5K $ | 0.01 % | 0.09 % | as of Jun 30, 2026 ↗ |
| U.S. MICRO CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 46,660 | 54.6K $ | 0.00 % | 0.08 % | as of Jul 31, 2026 ↗ |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 36,745 | 104K $ | 0.00 % | 0.06 % | as of May 31, 2026 ↗ |
| Invesco NASDAQ Future Gen 200 ETF Invesco Exchange-Traded Fund Trust II | 35,591 | 100.7K $ | 0.53 % | 0.06 % | as of May 31, 2026 ↗ |
| Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST | 28,565 | 33.4K $ | 0.00 % | 0.05 % | as of Jul 31, 2026 ↗ |
| Invesco RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust | 26,957 | 31.5K $ | 0.00 % | 0.05 % | as of Jul 31, 2026 ↗ |
| Dimensional U.S. Targeted Value ETF Dimensional ETF Trust | 25,054 | 29.3K $ | 0.00 % | 0.04 % | as of Jul 31, 2026 ↗ |
| VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 24,176 | 53.4K $ | 0.00 % | 0.04 % | as of Jun 30, 2026 ↗ |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 22,820 | 50.4K $ | 0.00 % | 0.04 % | as of Jun 30, 2026 ↗ |
| Avantis U.S. Small Cap Equity ETF American Century ETF Trust | 22,770 | 64.4K $ | 0.00 % | 0.04 % | as of May 31, 2026 ↗ |
| U.S. Sustainability Targeted Value Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 15,413 | 18K $ | 0.00 % | 0.03 % | as of Jul 31, 2026 ↗ |
| Dimensional VA U.S. Targeted Value Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 15,128 | 17.7K $ | 0.00 % | 0.03 % | as of Jul 31, 2026 ↗ |
| 1290 VT Micro Cap Portfolio EQ Advisors Trust | 10,170 | 22.5K $ | 0.01 % | 0.02 % | as of Jun 30, 2026 ↗ |
| U.S. SMALL CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 10,049 | 11.8K $ | 0.00 % | 0.02 % | as of Jul 31, 2026 ↗ |
| Dimensional US Core Equity 1 ETF Dimensional ETF Trust | 7,979 | 9.3K $ | 0.00 % | 0.01 % | as of Jul 31, 2026 ↗ |
| U.S. VECTOR EQUITY PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 7,963 | 9.3K $ | 0.00 % | 0.01 % | as of Jul 31, 2026 ↗ |
| Victory Extended Market Index Fund Victory Portfolios III | 4,961 | 5.8K $ | 0.00 % | 0.01 % | as of Jul 31, 2026 ↗ |
| Dimensional U.S. Core Equity 2 ETF Dimensional ETF Trust | 4,874 | 5.7K $ | 0.01 % | as of Jul 31, 2026 ↗ | |
| U.S. Targeted Value Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 4,833 | 5.7K $ | 0.01 % | as of Jul 31, 2026 ↗ | |
| Blackstone Alternative Multi-Strategy Fund Blackstone Alternative Investment Funds | 2,400 | 5.3K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table ranks funds by number of shares. This one ranks them by the weight of the company in each fund.
| Fund | Weight in fund | |
|---|---|---|
| Invesco NASDAQ Future Gen 200 ETF Invesco Exchange-Traded Fund Trust II | 0.53 % | as of May 31, 2026 ↗ |
| ACUITAS US MICROCAP FUND FORUM FUNDS II | 0.11 % | as of Jun 30, 2026 ↗ |
| Ultra-Small Company Market Fund Bridgeway Funds, Inc. | 0.10 % | as of Jun 30, 2026 ↗ |
| iShares Micro-Cap ETF iShares Trust | 0.02 % | as of Jun 30, 2026 ↗ |
| 1290 VT Micro Cap Portfolio EQ Advisors Trust | 0.01 % | as of Jun 30, 2026 ↗ |
| Omni Small-Cap Value Fund Bridgeway Funds, Inc. | 0.01 % | as of Jun 30, 2026 ↗ |
| U.S. Sustainability Targeted Value Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 0.00 % | as of Jul 31, 2026 ↗ |
| Avantis U.S. Small Cap Equity ETF American Century ETF Trust | 0.00 % | as of May 31, 2026 ↗ |
| Dimensional VA U.S. Targeted Value Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 0.00 % | as of Jul 31, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 0.00 % | as of May 31, 2026 ↗ |
Quarter after quarter
Each row is one quarter of SEC filings, newest first. The change compares each quarter with the one before.
| Quarter | Shareholders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q3 | 29 | +11 | 3,130,018 | +29.5 % |
| 2026Q2 | 18 | +1 | 2,416,793 | -0.7 % |
| 2026Q1 | 17 | -1 | 2,433,016 | +2.6 % |
| 2025Q4 | 18 | +4 | 2,371,809 | -7.9 % |
| 2025Q3 | 14 | +2 | 2,575,094 | +5.5 % |
| 2025Q2 | 12 | -2 | 2,440,268 | -2.1 % |
| 2025Q1 | 14 | 0 | 2,491,949 | -0.1 % |
| 2024Q4 | 14 | -2 | 2,493,774 | +0.7 % |
| 2024Q3 | 16 | -1 | 2,476,631 | +4.7 % |
| 2024Q2 | 17 | +1 | 2,364,751 | +5.3 % |
| 2024Q1 | 16 | -1 | 2,245,374 | +2.5 % |
| 2023Q4 | 17 | 2,191,534 |
Institutional managers
47 managers declare this company to the SEC (Form 13F). The table shows the 25 largest.
| Manager | Shares | Value | |
|---|---|---|---|
| GSK plc | 9,190,606 | 21.5M $ | as of Mar 31, 2026 |
| Pfizer Inc | 2,362,348 | 5.5M $ | as of Mar 31, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | 1,189,235 | 2.8M $ | as of Mar 31, 2026 |
| Alphabet Inc. | 889,979 | 2.1M $ | as of Mar 31, 2026 |
| TWO SIGMA INVESTMENTS, LP | 885,631 | 2.1M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 519,922 | 1.2M $ | as of Mar 31, 2026 |
| BlackRock, Inc. | 433,202 | 1M $ | as of Mar 31, 2026 |
| Anson Funds Management LP | 421,956 | 987.4K $ | as of Mar 31, 2026 |
| CITADEL ADVISORS LLC | 376,458 | 880.9K $ | as of Mar 31, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 333,115 | 779.5K $ | as of Mar 31, 2026 |
| GSA CAPITAL PARTNERS LLP | 278,304 | 651 $ | as of Mar 31, 2026 |
| STATE STREET CORP | 214,751 | 502.5K $ | as of Mar 31, 2026 |
| Ionic Capital Management LLC | 195,939 | 458.5K $ | as of Mar 31, 2026 |
| Squarepoint Ops LLC | 194,301 | 454.7K $ | as of Mar 31, 2026 |
| MARSHALL WACE, LLP | 157,072 | 367.5K $ | as of Mar 31, 2026 |
| NORTHERN TRUST CORP | 120,984 | 283.1K $ | as of Mar 31, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 114,800 | 268.6K $ | as of Mar 31, 2026 |
| JANE STREET GROUP, LLC | 106,345 | 248.8K $ | as of Mar 31, 2026 |
| Shay Capital LLC | 70,354 | 164.6K $ | as of Mar 31, 2026 |
| Point72 Asset Management, L.P. | 59,668 | 139.6K $ | as of Mar 31, 2026 |
| Invesco Ltd. | 45,374 | 106.2K $ | as of Mar 31, 2026 |
| Quadrature Capital Ltd | 40,128 | 93.9K $ | as of Mar 31, 2026 |
| OMERS ADMINISTRATION Corp | 39,400 | 92.2K $ | as of Mar 31, 2026 |
| Verdad Advisers, LP | 33,455 | 78.3K $ | as of Mar 31, 2026 |
| Capital Asset Advisory Services LLC | 32,548 | 92.4K $ | as of Mar 31, 2026 |
Cite this page
Titelia. "Fund shareholders of Spero Therapeutics Inc". https://titelia.com/en/stocks/spero-therapeutics-inc-US84833T1034