Spero Therapeutics Ownership | Who Owns Spero Therapeutics?

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Spero Therapeutics Ownership Summary

Spero Therapeutics is owned by 25.90% institutional investors, 20.38% insiders, and 53.72% retail investors. Anson funds management lp is the largest institutional shareholder, holding 7.01% of SPRO shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.16% of its assets in Spero Therapeutics shares.

SPRO Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Spero Therapeutics	25.90%	20.38%	53.72%
Sector	Healthcare Stocks	47.06%	8.01%	44.93%
Industry	Biotech Stocks	44.97%	7.82%	47.21%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Anson funds management lp	3.75M	7.01%	$4.88M
Vanguard group	1.77M	3.31%	$2.30M
Acadian asset management	1.07M	2.00%	$1.39M
Renaissance	975.95K	1.82%	$1.27M
Adar1 capital management	918.93K	1.72%	$1.19M
Alphabet	889.98K	1.66%	$1.16M
Atlas venture life science advisors	535.34K	1.00%	$695.94K
Geode capital management	492.19K	0.92%	$639.99K
Blackrock	483.40K	0.90%	$628.42K
Novo	468.90K	0.88%	$609.57K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Anson funds management lp	3.75M	0.58%	$4.88M
Adar1 capital management	918.93K	0.23%	$1.19M
Atlas venture life science advisors	535.34K	0.07%	$695.94K
Alphabet	889.98K	0.06%	$1.16M
Awm investment company	333.40K	0.06%	$433.42K
Dafna capital management	125.00K	0.04%	$162.50K
Novo	468.90K	0.03%	$609.57K
Dlk investment management	31.36K	0.02%	$40.76K
Bridgeway capital management	184.80K	0.01%	$240.24K
Shay capital	25.00K	0.00%	$32.50K

Top Buyers

Holder	Shares	% Assets	Change
Acadian asset management	1.07M	0.00%	309.26K
Renaissance	975.95K	0.00%	121.49K
Vanguard group	1.77M	-	117.09K
Geode capital management	492.19K	0.00%	22.75K
Blackrock	483.40K	-	6.51K

Top Sellers

Holder	Shares	% Assets	Change
Murchinson	-	-	-873.91K
Shay capital	25.00K	0.00%	-281.97K
Man group	73.47K	0.00%	-140.56K
Bank of montreal /can/	-	-	-79.50K
Squarepoint ops	-	-	-79.40K

New Positions

Holder	Shares	% Assets	Change	Value
Cullen/frost bankers	2.00K	-	2.00K	$2.60K
Royal bank of canada	1.96K	-	1.96K	$3.00K
Citadel advisors	500.00	-	500.00	$650.00

Sold Out

Holder	Change
Qube research	-1.00
Pfs partners	-50.00
Raleigh capital management	-500.00
Allworth financial lp	-600.00
Ifp advisors	-650.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2024	49	-9.26%	13,861,979	0.87%	25	3.81%	17	-29.17%	8	-33.33%
Mar 31, 2024	54	12.50%	13,742,012	-0.56%	26	3.79%	24	71.43%	12	20.00%
Dec 31, 2023	48	-9.43%	13,819,601	-2.58%	26	3.60%	14	-12.50%	10	-28.57%
Sep 30, 2023	53	-8.62%	14,186,051	-1.23%	26	3.61%	16	-30.43%	14	7.69%
Jun 30, 2023	58	23.40%	14,363,122	0.79%	27	3.72%	23	21.05%	13	85.71%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	1.17M	2.16%	-
Vanguard Institutional Extnd Mkt Idx Tr	587.34K	1.09%	-
Fidelity Extended Market Index	256.65K	0.47%	3.84K
Bridgeway Ultra-Small Company Market	134.80K	0.25%	-
iShares Micro-Cap ETF	107.49K	0.20%	-
Fidelity Total Market Index	66.94K	0.12%	-164.00
BlackRock Extended Equity Market K	60.57K	0.11%	-26.00
Fidelity Series Total Market Index	59.97K	0.11%	-
Spartan Total Market Index Pool E	50.89K	0.09%	-15.70K
NT Ext Equity Mkt Idx Fd - NL	50.56K	0.09%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Nov 08, 2024	Rajavelu Esther	CFO & CBO	Sell	$22.42K
Nov 07, 2024	Rajavelu Esther	CFO & CBO	Sell	$30.59K
Aug 27, 2024	Mahadevia Ankit	-	Sell	$7.98K
Aug 27, 2024	Keutzer Timothy	Chief Operating Officer	Sell	$2.99K
Aug 27, 2024	Shukla Sath	CEO & President	Sell	$3.72K

Insider Transactions Trends

Date	Buy	Sell
2024 Q3	-	5
2024 Q2	-	-
2024 Q1	-	6
2023 Q4	-	-
2023 Q3	-	6

SPRO Ownership FAQ

Who Owns Spero Therapeutics?

Spero Therapeutics shareholders are primarily institutional investors at 25.90%, followed by 20.38% insiders and 53.72% retail investors. The average institutional ownership in Spero Therapeutics's industry, Biotech Stocks , is 44.97%, which Spero Therapeutics falls below.

Who owns the most shares of Spero Therapeutics?

Spero Therapeutics’s largest shareholders are Anson funds management lp (3.75M shares, 7.01%), Vanguard group (1.77M shares, 3.31%), and Acadian asset management (1.07M shares, 2.00%). Together, they hold 12.32% of Spero Therapeutics’s total shares outstanding.

Does Blackrock own Spero Therapeutics?

Yes, BlackRock owns 0.90% of Spero Therapeutics, totaling 483.4K shares as of Jun 2024. This represents 0% of BlackRock's total assets, with a market value of 628.42K$. In the last quarter, BlackRock increased its holdings by 6.51K shares, a 1.36% change.

Who is Spero Therapeutics’s biggest shareholder by percentage of total assets invested?

Anson funds management lp is Spero Therapeutics’s biggest shareholder by percentage of total assets invested, with 0.58% of its assets in 3.75M Spero Therapeutics shares, valued at 4.88M$.

Who is the top mutual fund holder of Spero Therapeutics shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Spero Therapeutics shares, with 2.16% of its total shares outstanding invested in 1.17M Spero Therapeutics shares.

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