Spero Therapeutics Ownership 2024 | Who Owns Spero Therapeutics Now?


OverviewForecastRevenueFinancialsChartTranscripts

Institutional Ownership

25.90%

Insider Ownership

20.38%

Retail Ownership

53.72%

Institutional Holders

48.00

Spero Therapeutics Institutional Shareholders


Institutional Shareholders by % of Total Shares

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
ANSON FUNDS MANAGEMENT LP7.01%0.58%3,750,450--4,875,585Jun 30, 2024
VANGUARD GROUP INC3.31%-1,770,525117,0937.08%2,301,683Jun 30, 2024
ACADIAN ASSET MANAGEMENT LLC2.00%0.00%1,071,860309,26240.55%1,392,000Jun 30, 2024
RENAISSANCE TECHNOLOGIES LLC1.82%0.00%975,952121,49214.22%1,268,738Jun 30, 2024
ADAR1 CAPITAL MANAGEMENT, LLC1.72%0.23%918,929-8,000-0.86%1,194,608Jun 30, 2024
ALPHABET INC.1.66%0.06%889,979--1,156,973Jun 30, 2024
MURCHINSON LTD.1.63%0.17%873,910--1,136,083Jun 30, 2024
ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC1.00%0.07%535,336-72,277-11.90%695,937Jun 30, 2024
GEODE CAPITAL MANAGEMENT, LLC0.92%0.00%492,18722,7464.85%639,993Jun 30, 2024
BLACKROCK INC.0.90%-483,4026,5061.36%628,423Jun 30, 2024
NOVO HOLDINGS A/S0.88%0.04%468,902--609,573Jun 30, 2024
AWM INVESTMENT COMPANY, INC.0.62%0.06%333,400--433,420Jun 30, 2024
BRIDGEWAY CAPITAL MANAGEMENT, LLC0.35%0.01%184,800--240,240Jun 30, 2024
STATE STREET CORP0.24%-130,511--169,664,000Jun 30, 2024
DAFNA CAPITAL MANAGEMENT LLC0.23%0.04%125,000--162,500Jun 30, 2024
NORTHERN TRUST CORP0.21%-112,303-2,256-1.97%145,994,000Jun 30, 2024
MILLENNIUM MANAGEMENT LLC0.18%0.00%98,518-49,354-33.38%128,073Jun 30, 2024
MAN GROUP PLC0.14%0.00%73,469-140,557-65.67%95,510Jun 30, 2024
TWO SIGMA SECURITIES, LLC0.13%0.00%67,72867,728100.00%88,046Jun 30, 2024
MACKENZIE FINANCIAL CORP0.06%0.00%32,7294,28715.07%42,548Jun 30, 2024

Spero Therapeutics's largest institutional shareholder is ANSON FUNDS MANAGEMENT LP, holding 7.01% of the company's total share outstanding, currently valued at $4.88M. The top 10 institutional shareholders own together 21.98% of the company.

Institutional Shareholders by % of Total Assets

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
ANSON FUNDS MANAGEMENT LP7.01%0.58%3,750,450--4,875,585Jun 30, 2024
ADAR1 CAPITAL MANAGEMENT, LLC1.72%0.23%918,929-8,000-0.86%1,194,608Jun 30, 2024
MURCHINSON LTD.1.63%0.17%873,910--1,136,083Jun 30, 2024
ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC1.00%0.07%535,336-72,277-11.90%695,937Jun 30, 2024
ALPHABET INC.1.66%0.06%889,979--1,156,973Jun 30, 2024
AWM INVESTMENT COMPANY, INC.0.62%0.06%333,400--433,420Jun 30, 2024
DAFNA CAPITAL MANAGEMENT LLC0.23%0.04%125,000--162,500Jun 30, 2024
NOVO HOLDINGS A/S0.88%0.04%468,902--609,573Jun 30, 2024
DLK INVESTMENT MANAGEMENT, LLC0.06%0.02%31,355--40,762Jun 30, 2024
BRIDGEWAY CAPITAL MANAGEMENT, LLC0.35%0.01%184,800--240,240Jun 30, 2024
SHAY CAPITAL LLC0.05%0.00%25,000-281,967-91.86%32,500Jun 30, 2024
ACADIAN ASSET MANAGEMENT LLC2.00%0.00%1,071,860309,26240.55%1,392,000Jun 30, 2024
RENAISSANCE TECHNOLOGIES LLC1.82%0.00%975,952121,49214.22%1,268,738Jun 30, 2024
TWO SIGMA SECURITIES, LLC0.13%0.00%67,72867,728100.00%88,046Jun 30, 2024
WR WEALTH PLANNERS, LLC0.00%0.00%2,600--3,380Jun 30, 2024
TEXAS YALE CAPITAL CORP.0.02%0.00%10,000--13,000Jun 30, 2024
MAN GROUP PLC0.14%0.00%73,469-140,557-65.67%95,510Jun 30, 2024
MACKENZIE FINANCIAL CORP0.06%0.00%32,7294,28715.07%42,548Jun 30, 2024
MILLENNIUM MANAGEMENT LLC0.18%0.00%98,518-49,354-33.38%128,073Jun 30, 2024
GEODE CAPITAL MANAGEMENT, LLC0.92%0.00%492,18722,7464.85%639,993Jun 30, 2024

The largest Spero Therapeutics shareholder by % of total assets is ANSON FUNDS MANAGEMENT LP. The company owns 3.75M shares of Spero Therapeutics (SPRO), representing 0.58% of its total assets.

Institutional Buyers

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
ACADIAN ASSET MANAGEMENT LLC2.00%0.00%1,071,860309,26240.55%1,392,000Jun 30, 2024
RENAISSANCE TECHNOLOGIES LLC1.82%0.00%975,952121,49214.22%1,268,738Jun 30, 2024
VANGUARD GROUP INC3.31%-1,770,525117,0937.08%2,301,683Jun 30, 2024
TWO SIGMA SECURITIES, LLC0.13%0.00%67,72867,728100.00%88,046Jun 30, 2024
GEODE CAPITAL MANAGEMENT, LLC0.92%0.00%492,18722,7464.85%639,993Jun 30, 2024
BLACKROCK INC.0.90%-483,4026,5061.36%628,423Jun 30, 2024
MACKENZIE FINANCIAL CORP0.06%0.00%32,7294,28715.07%42,548Jun 30, 2024
CULLEN/FROST BANKERS, INC.0.00%-2,0002,000100.00%2,600Jun 30, 2024
ROYAL BANK OF CANADA0.00%-1,9591,959100.00%3,000Jun 30, 2024
FMR LLC0.01%-2,88950020.93%3,756Jun 30, 2024
WELLS FARGO & COMPANY/MN0.00%-1,00046085.19%1,300Jun 30, 2024
BANK OF AMERICA CORP /DE/0.01%-5,5583667.05%7,225Jun 30, 2024
ADVISOR GROUP HOLDINGS, INC.0.00%-295248527.66%384Jun 30, 2024
TOWER RESEARCH CAPITAL LLC (TRC)0.00%-2766027.78%359Jun 30, 2024
CORECAP ADVISORS, LLC0.00%-1925035.21%250Jun 30, 2024
QUBE RESEARCH & TECHNOLOGIES LTD--1--1Jun 30, 2024
BNP PARIBAS ARBITRAGE, SNC--12--16Jun 30, 2024
JPMORGAN CHASE & CO0.00%-236--307Jun 30, 2024
FEDERATION DES CAISSES DESJARDINS DU QUEBEC0.00%-30--39Jun 30, 2024
US BANCORP \DE\0.00%-151--196Jun 30, 2024

As of Jun 30 2024, Spero Therapeutics's largest institutional buyer is ACADIAN ASSET MANAGEMENT LLC. The company purchased 309.26K stocks of SPRO, valued at $1.39M.

Institutional Sellers

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
SHAY CAPITAL LLC0.05%0.00%25,000-281,967-91.86%32,500Jun 30, 2024
MAN GROUP PLC0.14%0.00%73,469-140,557-65.67%95,510Jun 30, 2024
BANK OF MONTREAL /CAN/----79,500-100.00%-Jun 30, 2024
SQUAREPOINT OPS LLC----79,401-100.00%-Jun 30, 2024
ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC1.00%0.07%535,336-72,277-11.90%695,937Jun 30, 2024
BAILARD, INC.----60,900-100.00%-Jun 30, 2024
MILLENNIUM MANAGEMENT LLC0.18%0.00%98,518-49,354-33.38%128,073Jun 30, 2024
GSA CAPITAL PARTNERS LLP----28,319-100.00%-Jun 30, 2024
PRUDENTIAL FINANCIAL INC----25,400-100.00%-Jun 30, 2024
VIRTU FINANCIAL LLC----18,180-100.00%-Jun 30, 2024
XTX TOPCO LTD----15,013-100.00%-Jun 30, 2024
ADAR1 CAPITAL MANAGEMENT, LLC1.72%0.23%918,929-8,000-0.86%1,194,608Jun 30, 2024
UBS GROUP AG0.00%-331-5,397-94.22%430Jun 30, 2024
NORTHERN TRUST CORP0.21%-112,303-2,256-1.97%145,994,000Jun 30, 2024
LAZARD ASSET MANAGEMENT LLC----1,248-100.00%-Jun 30, 2024
MORGAN STANLEY0.01%-6,971-928-11.75%9,062Jun 30, 2024
IFP ADVISORS, INC----650-100.00%-Jun 30, 2024
RALEIGH CAPITAL MANAGEMENT INC.----500-100.00%-Jun 30, 2024
PFS PARTNERS, LLC----50-100.00%-Jun 30, 2024
ANSON FUNDS MANAGEMENT LP7.01%0.58%3,750,450--4,875,585Jun 30, 2024

As of Jun 30 2024, Spero Therapeutics's biggest institutional seller is SHAY CAPITAL LLC. The company sold -0.28M shares of SPRO, valued at $32.50K.

Institutional New positions

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
CULLEN/FROST BANKERS, INC.0.00%-2,0002,000100.00%2,600Jun 30, 2024
ROYAL BANK OF CANADA0.00%-1,9591,959100.00%3,000Jun 30, 2024

Spero Therapeutics's largest new institutional shareholder by number of shares is CULLEN/FROST BANKERS, INC., purchased 2.00K shares, valued at $2.60K, as of undefined.

Institutional Sold Out

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
BANK OF MONTREAL /CAN/----79,500-100.00%-Jun 30, 2024
SQUAREPOINT OPS LLC----79,401-100.00%-Jun 30, 2024
BAILARD, INC.----60,900-100.00%-Jun 30, 2024
GSA CAPITAL PARTNERS LLP----28,319-100.00%-Jun 30, 2024
PRUDENTIAL FINANCIAL INC----25,400-100.00%-Jun 30, 2024
VIRTU FINANCIAL LLC----18,180-100.00%-Jun 30, 2024
XTX TOPCO LTD----15,013-100.00%-Jun 30, 2024
LAZARD ASSET MANAGEMENT LLC----1,248-100.00%-Jun 30, 2024
IFP ADVISORS, INC----650-100.00%-Jun 30, 2024
RALEIGH CAPITAL MANAGEMENT INC.----500-100.00%-Jun 30, 2024
PFS PARTNERS, LLC----50-100.00%-Jun 30, 2024

Spero Therapeutics's largest sold out institutional shareholder by shares sold is BANK OF MONTREAL /CAN/, sold -79.50K shares, valued at -, as of undefined.

Spero Therapeutics Mutual Fund Holders


Name% Total AssetsTotal SharesChange AmountChange %Date
Nuveen Multi-Market Income Fund0.70%486,250-1,250-0.26%Mar 31, 2024
Core Bond Portfolio0.48%3,588,710-9,370-0.26%Mar 31, 2024
CALVERT VARIABLE SERIES INC0.47%909,625-2,375-0.26%Mar 31, 2024
CALVERT FUND0.31%18,344,742-47,897-0.26%Mar 31, 2024
CALVERT SOCIAL INVESTMENT FUND0.27%12,337,387-32,212-0.26%Mar 31, 2024
Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust0.23%957,500-2,500-0.26%Feb 29, 2024
Nuveen Mortgage & Income Fund/MA/0.22%649,687--Mar 31, 2024
Guggenheim Variable Funds Trust0.18%750,000--Dec 31, 2023
JOHN HANCOCK INVESTORS TRUST0.18%521,157521,157-Jan 31, 2024
Calvert Management Series0.16%1,628,707-4,252-0.26%Mar 31, 2024
HARBOR FUNDS0.15%3,403,750-8,750-0.26%Jan 31, 2024
Guggenheim Variable Funds Trust0.12%487,500-1,250-0.26%Dec 31, 2023
GUGGENHEIM STRATEGIC OPPORTUNITIES FUND0.10%1,962,875-5,125-0.26%Feb 29, 2024
COMMERCE FUNDS0.10%1,945,000-5,000-0.26%Jan 31, 2024
GUGGENHEIM FUNDS TRUST0.09%54,193,425-138,957-0.26%Dec 31, 2023
CALVERT SOCIAL INVESTMENT FUND0.09%4,100,0004,100,000-Mar 31, 2024
TIAA-CREF LIFE FUNDS0.09%243,125--Mar 31, 2024
CALVERT VARIABLE SERIES INC0.09%170,000170,000-Mar 31, 2024
Touchstone ETF Trust0.09%344,700-900-0.26%Mar 31, 2024
BRIDGEWAY FUNDS INC0.08%184,80050,00037.09%Mar 28, 2024
Voya BALANCED PORTFOLIO INC0.07%100,000100,000-Mar 31, 2024
JOHN HANCOCK BOND TRUST0.06%4,050,6094,050,609-Feb 29, 2024
DoubleLine ETF Trust0.05%500,000500,000-Mar 31, 2024
NUVEEN INVESTMENT FUNDS INC0.05%1,783,937--Jan 31, 2024
Catholic Responsible Investments Funds0.04%1,723,500-4,500-0.26%Jan 31, 2024
CALVERT FUND0.04%2,500,0002,500,000-Mar 31, 2024
GUGGENHEIM FUNDS TRUST0.04%23,088,750-58,750-0.25%Dec 31, 2023
VANGUARD VALLEY FORGE FUNDS0.04%19,238--Mar 31, 2024
TIAA-CREF LIFE FUNDS0.04%99,250--Mar 31, 2024
JOHN HANCOCK BOND TRUST0.04%2,448,755-6,295-0.26%Feb 29, 2024
JOHN HANCOCK SOVEREIGN BOND FUND0.04%10,409,00010,409,000-Feb 29, 2024
JOHN HANCOCK INCOME SECURITIES TRUST0.03%104,000104,000-Jan 31, 2024
NUVEEN INVESTMENT FUNDS INC0.03%1,042,125--Jan 31, 2024
Voya FUNDS TRUST0.03%8,000,0008,000,000-Mar 31, 2024
EATON VANCE MUTUAL FUNDS TRUST0.03%4,672,600-12,200-0.26%Mar 31, 2024
John Hancock Exchange-Traded Fund Trust0.02%150,000150,000-Jan 31, 2024
GUGGENHEIM FUNDS TRUST0.02%12,821,7603,912,86043.92%Dec 31, 2023
RiverNorth Funds0.02%500,000--Dec 31, 2023
COLLEGE RETIREMENT EQUITIES FUND0.02%20,082,125-51,625-0.26%Mar 31, 2024
IndexIQ ETF Trust0.01%28,758--Jan 31, 2024
Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust0.01%48,625-125-0.26%Feb 29, 2024
Legg Mason ETF Investment Trust0.01%22,851--Mar 31, 2024
Tidal ETF Trust0.01%123,165--Jan 31, 2024
JOHN HANCOCK INVESTMENT TRUST0.01%741,000741,000-Jan 31, 2024
QUANTITATIVE MASTER SERIES LLC0.01%36,207--Mar 31, 2024
DEUTSCHE DWS INVESTMENTS VIT FUNDS0.01%3,443--Mar 31, 2024
Destra Investment Trust0.01%9,383--Mar 31, 2024
VANGUARD EXPLORER FUND0.00%54,307--Jan 31, 2024
Humankind Benefit Corp0.00%86--Dec 31, 2023
Federated Hermes MDT Series0.00%9,473--Jan 31, 2024
TIAA SEPARATE ACCOUNT VA 10.00%853--Mar 31, 2024
VANGUARD INDEX FUNDS0.00%1,608,458-525,001-24.61%Mar 31, 2024
VANGUARD QUANTITATIVE FUNDS0.00%17,600--Mar 31, 2024
TIAA-CREF FUNDS0.00%11,197,962-29,237-0.26%Mar 31, 2024
LITMAN GREGORY FUNDS TRUST0.00%191,50095,50099.48%Mar 31, 2024
TIAA-CREF FUNDS0.00%8,849,750-22,750-0.26%Mar 31, 2024
MML Series Investment Fund II0.00%500,000--Dec 31, 2023
JOHN HANCOCK VARIABLE INSURANCE TRUST0.00%4,997,677-12,847-0.26%Mar 31, 2024
FIDELITY CONCORD STREET TRUST0.00%390,72814,8543.95%Feb 29, 2024
VANGUARD VARIABLE INSURANCE FUNDS0.00%77,605--Mar 31, 2024
JOHN HANCOCK VARIABLE INSURANCE TRUST0.00%2,941,0002,941,000-Mar 31, 2024
NEW COVENANT FUNDS0.00%5,087--Dec 31, 2023
DoubleLine Funds Trust0.00%957,500-2,500-0.26%Mar 31, 2024
SCHWAB CAPITAL TRUST0.00%28,565--Jan 31, 2024
VANGUARD INSTITUTIONAL INDEX FUNDS0.00%19,689--Mar 31, 2024
Calvert Variable Products, Inc.0.00%1,713--Mar 31, 2024
Columbia Funds Variable Series Trust II0.00%19,134--Mar 31, 2024
VALIC Co II0.00%17,1622001.18%Feb 28, 2021
COLUMBIA FUNDS SERIES TRUST I0.00%2,250,0002,250,000-Feb 29, 2024
EQ ADVISORS TRUST0.00%500,000--Mar 31, 2024
VANGUARD WORLD FUND0.00%83,035--Feb 29, 2024
Meeder Funds0.00%1,609--Mar 31, 2024
Voya VARIABLE PORTFOLIOS INC0.00%9,856--Mar 31, 2024
COLUMBIA FUNDS VARIABLE INSURANCE TRUST0.00%156,057--Mar 31, 2024
Direxion Shares ETF Trust0.00%41,228--Jan 31, 2024
TIAA-CREF LIFE FUNDS0.00%683--Mar 31, 2024
SunAmerica Specialty Series0.00%122--Apr 30, 2021
AdvisorShares Trust0.00%850--Mar 28, 2024
OLD WESTBURY FUNDS INC0.00%26,811--Jan 31, 2024
NATIONWIDE MUTUAL FUNDS0.00%22,600--Jan 31, 2024
Global X Funds0.00%6,714--Jan 31, 2024
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC0.00%725--Mar 31, 2024
FIDELITY SELECT PORTFOLIOS0.00%8,552--Feb 29, 2024
VARIABLE INSURANCE PRODUCTS FUND II0.00%1,163--Mar 31, 2024
RBB FUND, INC.0.00%8,900--Feb 29, 2024
PACE SELECT ADVISORS TRUST0.00%27,270--Jan 31, 2024
COLUMBIA FUNDS SERIES TRUST I0.00%382,877--Feb 29, 2024
STATE STREET INSTITUTIONAL INVESTMENT TRUST0.00%4,893--Mar 31, 2024
VALIC Co II0.00%2,462--Feb 28, 2021
Invesco Exchange-Traded Fund Trust II0.00%20,317--Jan 31, 2024
JOHN HANCOCK STRATEGIC SERIES0.00%461,937-1,187-0.26%Feb 29, 2024
NORTHERN FUNDS0.00%9,073--Mar 28, 2024
JOHN HANCOCK STRATEGIC SERIES0.00%417,000417,000-Feb 29, 2024
RYDEX SERIES FUNDS0.00%231--Dec 31, 2023
SA FUNDS INVESTMENT TRUST0.00%800--Mar 31, 2024
ProFunds0.00%517--Mar 31, 2024
DFA INVESTMENT DIMENSIONS GROUP INC0.00%45,205--Jan 31, 2024
FIDELITY SALEM STREET TRUST0.00%174,150--Mar 31, 2024
VANGUARD SCOTTSDALE FUNDS0.00%78,622--Feb 29, 2024
T. Rowe Price Index Trust, Inc.0.00%833--Feb 29, 2024

Spero Therapeutics's largest mutual fund holder by % of total assets is "Nuveen Multi-Market Income Fund", owning 486.25K shares, compromising 0.70% of its total assets.

Spero Therapeutics Institutional Ownership Trends


Institutional Holdings Trend

DateHoldingsChange %
30 Jun, 2448-11.11%
31 Mar, 245412.50%
31 Dec, 2348-9.43%
30 Sep, 2353-8.62%
30 Jun, 235823.40%
31 Mar, 2347-20.34%
31 Dec, 2259-9.23%
30 Sep, 2265-4.41%
30 Jun, 2268-32.00%
31 Mar, 2210013.64%
31 Dec, 2188-3.30%
30 Sep, 2191-
30 Jun, 2191-7.14%
31 Mar, 21982.08%
31 Dec, 209617.07%
30 Sep, 20822.50%
30 Jun, 208033.33%
31 Mar, 2060-3.23%
31 Dec, 19623.33%
30 Sep, 1960-
30 Jun, 19609.09%
31 Mar, 19557.84%
31 Dec, 1851-
30 Sep, 185118.60%
30 Jun, 184326.47%
31 Mar, 1834-8.11%
31 Dec, 1737-

As of 30 Jun 24, 48 institutions are holding Spero Therapeutics's shares, representing a decrease of -11.11% compared to the previous quarter.

Shares Outstanding Trend

DateShares OutstandingChange %
30 Jun, 2413,861,8790.87%
31 Mar, 2413,742,012-0.56%
31 Dec, 2313,819,601-2.58%
30 Sep, 2314,186,051-1.23%
30 Jun, 2314,363,1220.79%
31 Mar, 2314,249,9760.19%
31 Dec, 2214,222,524-28.36%
30 Sep, 2219,853,143-5.27%
30 Jun, 2220,958,0983.53%
31 Mar, 2220,242,9512.28%
31 Dec, 2119,791,5097.73%
30 Sep, 2118,370,6215.07%
30 Jun, 2117,484,841-5.76%
31 Mar, 2118,553,801-2.82%
31 Dec, 2019,092,83613.82%
30 Sep, 2016,774,27242.43%
30 Jun, 2011,777,1762.13%
31 Mar, 2011,531,3006.59%
31 Dec, 1910,818,8494.27%
30 Sep, 1910,375,439-2.51%
30 Jun, 1910,642,35214.23%
31 Mar, 199,316,8272.39%
31 Dec, 189,099,360-15.35%
30 Sep, 1810,749,50032.36%
30 Jun, 188,121,1315.40%
31 Mar, 187,704,972-0.69%
31 Dec, 177,758,866-

Spero Therapeutics (SPRO) has 13.86M shares outstanding as of 30 Jun 24, up 0.87% compared to the previous quarter.

Institutional Ownership Trend

DateOwnership %Change %
30 Jun, 2425.90%3.81%
31 Mar, 2426.07%3.79%
31 Dec, 2326.22%3.60%
30 Sep, 2326.98%3.61%
30 Jun, 2327.34%3.72%
31 Mar, 2327.13%1.89%
31 Dec, 2237.84%1.24%
30 Sep, 2255.33%1.37%
30 Jun, 2263.55%1.65%
31 Mar, 2262.08%1.51%
31 Dec, 2164.06%1.96%
30 Sep, 2157.17%1.65%
30 Jun, 2158.92%1.48%
31 Mar, 2163.08%1.30%
31 Dec, 2069.76%1.19%
30 Sep, 2076.48%2.35%
30 Jun, 2057.08%1.64%
31 Mar, 2058.96%1.66%
31 Dec, 1959.57%1.93%
30 Sep, 1955.61%1.53%
30 Jun, 1960.24%2.06%
31 Mar, 1954.10%2.06%
31 Dec, 1851.30%1.36%
30 Sep, 1861.53%1.93%
30 Jun, 1856.49%1.96%
31 Mar, 1853.62%0.77%
31 Dec, 1783.66%-

As of 30 Jun 24, Spero Therapeutics is held by 25.90% institutional shareholders, representing a 3.81% growth compared to 31 Mar 24.

Institutional Increased Positions Trend

DateIncreased PositionsChange %
30 Jun, 2417-29.17%
31 Mar, 242471.43%
31 Dec, 2314-12.50%
30 Sep, 2316-30.43%
30 Jun, 232321.05%
31 Mar, 2319-32.14%
31 Dec, 222816.67%
30 Sep, 2224-27.27%
30 Jun, 2233-19.51%
31 Mar, 224120.59%
31 Dec, 213413.33%
30 Sep, 2130-30.23%
30 Jun, 21437.50%
31 Mar, 2140-31.03%
31 Dec, 205838.10%
30 Sep, 2042-31.15%
30 Jun, 206160.53%
31 Mar, 20382.70%
31 Dec, 193712.12%
30 Sep, 1933-2.94%
30 Jun, 193436.00%
31 Mar, 1925-3.85%
31 Dec, 1826-31.58%
30 Sep, 183852.00%
30 Jun, 182556.25%
31 Mar, 1816-56.76%
31 Dec, 1737-

17 institutional shareholders have increased their position in SPRO stock as of 30 Jun 24 compared to 24 in the previous quarter (a -29.17% decrease).

Institutional Reduced Positions Trend

DateReduced PositionsChange %
30 Jun, 248-33.33%
31 Mar, 241220.00%
31 Dec, 2310-28.57%
30 Sep, 23147.69%
30 Jun, 231385.71%
31 Mar, 237-53.33%
31 Dec, 2215-25.00%
30 Sep, 222011.11%
30 Jun, 2218-18.18%
31 Mar, 2222-
31 Dec, 2122-8.33%
30 Sep, 212420.00%
30 Jun, 2120-25.93%
31 Mar, 212712.50%
31 Dec, 20244.35%
30 Sep, 202391.67%
30 Jun, 2012-20.00%
31 Mar, 201536.36%
31 Dec, 1911-8.33%
30 Sep, 191220.00%
30 Jun, 1910-41.18%
31 Mar, 191730.77%
31 Dec, 1813160.00%
30 Sep, 185-28.57%
30 Jun, 18716.67%
31 Mar, 186-
31 Dec, 17--

8 institutional shareholders have reduced their position in SPRO stock as of 30 Jun 24 compared to 12 in the previous quarter (a -33.33% decrease).

All Institutional Ownership Trend Data

DateHoldingsChange %Shares OutstandingChange %Ownership %Change %Increased PositionsChange %Reduced PositionsChange %
30 Jun, 2448-11.11%13,861,8790.87%25.90%3.81%17-29.17%8-33.33%
31 Mar, 245412.50%13,742,012-0.56%26.07%3.79%2471.43%1220.00%
31 Dec, 2348-9.43%13,819,601-2.58%26.22%3.60%14-12.50%10-28.57%
30 Sep, 2353-8.62%14,186,051-1.23%26.98%3.61%16-30.43%147.69%
30 Jun, 235823.40%14,363,1220.79%27.34%3.72%2321.05%1385.71%
31 Mar, 2347-20.34%14,249,9760.19%27.13%1.89%19-32.14%7-53.33%
31 Dec, 2259-9.23%14,222,524-28.36%37.84%1.24%2816.67%15-25.00%
30 Sep, 2265-4.41%19,853,143-5.27%55.33%1.37%24-27.27%2011.11%
30 Jun, 2268-32.00%20,958,0983.53%63.55%1.65%33-19.51%18-18.18%
31 Mar, 2210013.64%20,242,9512.28%62.08%1.51%4120.59%22-
31 Dec, 2188-3.30%19,791,5097.73%64.06%1.96%3413.33%22-8.33%
30 Sep, 2191-18,370,6215.07%57.17%1.65%30-30.23%2420.00%
30 Jun, 2191-7.14%17,484,841-5.76%58.92%1.48%437.50%20-25.93%
31 Mar, 21982.08%18,553,801-2.82%63.08%1.30%40-31.03%2712.50%
31 Dec, 209617.07%19,092,83613.82%69.76%1.19%5838.10%244.35%
30 Sep, 20822.50%16,774,27242.43%76.48%2.35%42-31.15%2391.67%
30 Jun, 208033.33%11,777,1762.13%57.08%1.64%6160.53%12-20.00%
31 Mar, 2060-3.23%11,531,3006.59%58.96%1.66%382.70%1536.36%
31 Dec, 19623.33%10,818,8494.27%59.57%1.93%3712.12%11-8.33%
30 Sep, 1960-10,375,439-2.51%55.61%1.53%33-2.94%1220.00%
30 Jun, 19609.09%10,642,35214.23%60.24%2.06%3436.00%10-41.18%
31 Mar, 19557.84%9,316,8272.39%54.10%2.06%25-3.85%1730.77%
31 Dec, 1851-9,099,360-15.35%51.30%1.36%26-31.58%13160.00%
30 Sep, 185118.60%10,749,50032.36%61.53%1.93%3852.00%5-28.57%
30 Jun, 184326.47%8,121,1315.40%56.49%1.96%2556.25%716.67%
31 Mar, 1834-8.11%7,704,972-0.69%53.62%0.77%16-56.76%6-
31 Dec, 1737-7,758,866-83.66%-37---

Spero Therapeutics Insider Shareholders Trades


Open Market Insider Trades

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource
Aug 06, 2024Shukla Sathofficer CEO and PresidentS-SaleSell14,800$1.32$19.54K1,161,207
Aug 06, 2024Shukla Sathofficer CEO and PresidentS-SaleSell17,641$1.31$23.11K1,143,566
Feb 05, 2024Keutzer Timothyofficer Chief Operating OfficerS-SaleSell30,971$1.36$42.12K534,050
Feb 05, 2024Mahadevia Ankitdirector-S-SaleSell63,795$1.37$87.40K744,997
Feb 05, 2024JOSEPH TAMARA Lofficer Chief Legal OfficerS-SaleSell30,906$1.37$42.34K531,615
Feb 05, 2024HAMED KAMALofficer Chief Medical OfficerS-SaleSell28,075$1.37$38.46K788,117
Feb 05, 2024Shukla Sathdirector, officer CEO and PresidentS-SaleSell30,901$1.37$42.33K1,221,100

Open Market Insider Buys

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource

Insider Sells

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource
Aug 06, 2024Shukla Sathofficer CEO and PresidentS-SaleSell14,800$1.32$19.54K1,161,207
Aug 06, 2024Shukla Sathofficer CEO and PresidentS-SaleSell17,641$1.31$23.11K1,143,566
Feb 05, 2024Keutzer Timothyofficer Chief Operating OfficerS-SaleSell30,971$1.36$42.12K534,050
Feb 05, 2024Mahadevia Ankitdirector-S-SaleSell63,795$1.37$87.40K744,997
Feb 05, 2024JOSEPH TAMARA Lofficer Chief Legal OfficerS-SaleSell30,906$1.37$42.34K531,615
Feb 05, 2024HAMED KAMALofficer Chief Medical OfficerS-SaleSell28,075$1.37$38.46K788,117
Feb 05, 2024Shukla Sathdirector, officer CEO and PresidentS-SaleSell30,901$1.37$42.33K1,221,100

All Insider Owners Trades

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource
Aug 06, 2024Shukla Sathofficer CEO and PresidentS-SaleSell14,800$1.32$19.54K1,161,207
Aug 06, 2024Shukla Sathofficer CEO and PresidentS-SaleSell17,641$1.31$23.11K1,143,566
May 30, 2024Deshpande Milinddirector-A-AwardBuy20,000--71,454
May 30, 2024Jackson Scott Thomasdirector-A-AwardBuy20,000--55,000
May 30, 2024Mahadevia Ankitdirector-A-AwardBuy20,000--764,997
May 30, 2024VINK PATRICK V.J.J.director-A-AwardBuy20,000--55,000
May 30, 2024Tregoning Kathleendirector-A-AwardBuy20,000--55,000
May 30, 2024Smith Cynthiadirector-A-AwardBuy20,000--55,000
May 30, 2024THOMAS FRANK Edirector-A-AwardBuy20,000--55,000
May 30, 2024Pottage John C Jrdirector-A-AwardBuy20,000--55,000
Feb 05, 2024Keutzer Timothyofficer Chief Operating OfficerA-AwardBuy239,731--565,021
Feb 05, 2024Keutzer Timothyofficer Chief Operating OfficerS-SaleSell30,971$1.36$42.12K534,050
Feb 05, 2024Mahadevia Ankitdirector-S-SaleSell63,795$1.37$87.40K744,997
Feb 05, 2024JOSEPH TAMARA Lofficer Chief Legal OfficerA-AwardBuy239,731--562,521
Feb 05, 2024JOSEPH TAMARA Lofficer Chief Legal OfficerS-SaleSell30,906$1.37$42.34K531,615
Feb 05, 2024HAMED KAMALofficer Chief Medical OfficerA-AwardBuy239,731--816,192
Feb 05, 2024HAMED KAMALofficer Chief Medical OfficerS-SaleSell28,075$1.37$38.46K788,117
Feb 05, 2024Rajavelu Estherofficer See RemarksA-AwardBuy119,866--419,866
Feb 05, 2024Shukla Sathdirector, officer CEO and PresidentA-AwardBuy679,501--1,252,001
Feb 05, 2024Shukla Sathdirector, officer CEO and PresidentS-SaleSell30,901$1.37$42.33K1,221,100

The last insider sell of Spero Therapeutics's stock was made by Shukla Sath on Aug 06 2024, selling 14,800 shares at $1.32 per share (valued at $19.54K).

Spero Therapeutics Insider Ownership Trends


All Insider Trades Trend

DateBuySellBuy/Sell Ratio
Q3 2024-2-
Q2 20248--
Q1 202466100.00%
Q4 20239--
Q3 20231616.67%
Q2 20231--
Q1 202374175.00%
Q4 2022---
Q3 202253166.67%
Q2 20222--
Q1 202228--
Q4 202162300.00%
Q3 202124--
Q1 202195180.00%
Q4 2020141877.78%
Q3 20203650.00%
Q2 20205862.50%
Q1 202084200.00%
Q4 2019---
Q2 20196--

0 total buy trades, and 2 total sell trades (buy/sell ratio of 0.00%) were made by Spero Therapeutics's insiders, as of Q3 2024.

Open Market Insider Trades Trend

DateBuySellBuy/Sell Ratio
Q3 2024-2-
Q2 2024---
Q1 2024-6-
Q4 2023---
Q3 2023-6-
Q2 2023---
Q1 2023-4-
Q4 2022---
Q3 2022-3-
Q2 20222--
Q1 202213--
Q4 202141400.00%
Q3 202111--
Q1 2021-5-
Q4 2020-12-
Q3 2020-3-
Q2 2020-4-
Q1 2020---
Q4 2019---
Q2 2019---

As of Q3 2024, Insider owners conducted 0 open market buy trades and 2 open market sell trades of Spero Therapeutics's stocks.

Spero Therapeutics Peer Ownership


TickerCompany
NUVBNuvation Bio Inc.
ACHLAchilles Therapeutics plc
NXTCNextCure, Inc.
CTMXCytomX Therapeutics, Inc.
ASMBAssembly Biosciences, Inc.
NLTXNeurogene Inc.
TILInstil Bio, Inc.

SPRO Ownership FAQ


Spero Therapeutics is owned by institutional shareholders (25.90%), insiders (20.38%), and public (53.72%). The largest institutional shareholder of Spero Therapeutics is ANSON FUNDS MANAGEMENT LP (7.01% of total shares) and the top mutual fund owner is Nuveen Multi-Market Income Fund (0.70% of total shares).

Spero Therapeutics's major institutional shareholders are ANSON FUNDS MANAGEMENT LP, VANGUARD GROUP INC, ACADIAN ASSET MANAGEMENT LLC, RENAISSANCE TECHNOLOGIES LLC, and ADAR1 CAPITAL MANAGEMENT, LLC. The top five shareholders own together 15.86% of the company's share outstanding.

As of Jun 2024, there are 48 institutional shareholders of Spero Therapeutics.

ANSON FUNDS MANAGEMENT LP owns 3.75M shares of Spero Therapeutics, representing 7.01% of the company's total shares outstanding, valued at $4.88M (as of Jun 2024).

As of Jun 2024, VANGUARD GROUP INC holds 1.77M shares of Spero Therapeutics (SPRO), compromising 3.31% of the company, valued at $2.3M.

ACADIAN ASSET MANAGEMENT LLC is the third largest holder of Spero Therapeutics. The company owns 1.07M of the company's shares outstanding (worth $1.39M).