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SPRO Insider Trading (Spero Therapeutics)

Insider Trading Chart
Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 13.45%

Insider Buying (Last 12 Months): $4,955,003.69

Insider Selling (Last 12 Months): $6,642,306.01

Spero Therapeutics Insider Trading History Chart

Spero Therapeutics Share Price & Price History

^$16.86

▲ +0.11 (0.66%)

As of 10/22/2021 01:00 AM ET

Days: 30 | 90 | 365

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Spero Therapeutics Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
9/30/2021	Aquilo Capital Management, Llc	Major Shareholder	Buy	134,543	$18.65	$2,509,226.95
9/13/2021	Aquilo Capital Management, Llc	Major Shareholder	Buy	44,210	$18.56	$820,537.60
9/9/2021	Aquilo Capital Management, Llc	Major Shareholder	Buy	24,749	$18.50	$457,856.50
8/30/2021	Aquilo Capital Management, Llc	Major Shareholder	Buy	44,042	$17.87	$787,030.54
8/26/2021	Aquilo Capital Management, Llc	Major Shareholder	Buy	22,982	$16.55	$380,352.10
2/8/2021	Aquilo Capital Management, Llc	Major Shareholder	Sell	3,000	$21.74	$65,220.00
2/3/2021	Aquilo Capital Management, Llc	Major Shareholder	Sell	29,354	$18.98	$557,138.92
2/1/2021	Aquilo Capital Management, Llc	Major Shareholder	Sell	13,661	$19.24	$262,837.64
12/16/2020	Aquilo Capital Management, Llc	Major Shareholder	Sell	14,933	$18.62	$278,052.46
12/16/2020	Cristina Larkin	COO	Sell	12,000	$19.00	$228,000.00	13,500
11/9/2020	Aquilo Capital Management, Llc	Major Shareholder	Sell	125,900	$13.77	$1,733,643.00
11/6/2020	Aquilo Capital Management, Llc	Major Shareholder	Sell	174,100	$14.09	$2,453,069.00
11/4/2020	Aquilo Capital Management, Llc	Major Shareholder	Sell	72,500	$14.26	$1,033,850.00
11/3/2020	Ankit Mahadevia	CEO	Sell	2,137	$14.27	$30,494.99
10/23/2020	Ankit Mahadevia	CEO	Sell	20	$14.25	$285.00
10/14/2020	Ankit Mahadevia	CEO	Sell	105	$14.25	$1,496.25
9/8/2020	Ankit Mahadevia	CEO	Sell	774	$14.25	$11,029.50
7/9/2020	Ankit Mahadevia	CEO	Sell	2,293	$14.31	$32,812.83
7/7/2020	Ankit Mahadevia	CEO	Sell	754	$14.25	$10,744.50

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SEC Filings (Institutional Ownership Changes) for Spero Therapeutics (NASDAQ:SPRO)

51.68% of Spero Therapeutics stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Spero Therapeutics Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
10/20/2021	Sentinel Pension Advisors Inc.	20,200	$0.37M	0.1%	N/A	0.063%
9/3/2021	Parametric Portfolio Associates LLC	29,947	$0.42M	0.0%	-4.7%	0.093%
8/23/2021	Morgan Stanley	69,772	$0.97M	0.0%	-63.1%	0.217%
8/17/2021	Wells Fargo & Company MN	39,847	$0.56M	0.0%	+122.4%	0.124%
8/17/2021	Metropolitan Life Insurance Co NY	6,987	$98K	0.0%	+139,640.0%	0.022%
8/17/2021	MetLife Investment Management LLC	9,977	$0.14M	0.0%	+392.0%	0.031%
8/16/2021	Bank of America Corp DE	7,701	$0.11M	0.0%	-59.1%	0.024%
8/16/2021	California State Teachers Retirement System	33,446	$0.47M	0.0%	+8.2%	0.104%
8/16/2021	Morgan Stanley	69,772	$0.97M	0.0%	-63.1%	0.217%
8/16/2021	Charles Schwab Investment Management Inc.	60,496	$0.85M	0.0%	+13.4%	0.188%
8/16/2021	State Street Corp	810,738	$11.32M	0.0%	-40.2%	2.522%
8/16/2021	Goldman Sachs Group Inc.	136,262	$1.90M	0.0%	-46.7%	0.424%
8/13/2021	Northern Trust Corp	260,886	$3.64M	0.0%	+8.9%	0.812%
8/13/2021	Liberty Wealth Management LLC	27,920	$2M	0.1%	+1,296.0%	0.087%
8/13/2021	Geode Capital Management LLC	413,761	$5.78M	0.0%	+13.8%	1.287%
8/13/2021	Vanguard Group Inc.	1,276,790	$17.82M	0.0%	+15.4%	3.972%
8/13/2021	ProShare Advisors LLC	11,608	$0.16M	0.0%	N/A	0.036%
8/12/2021	Dimensional Fund Advisors LP	374,443	$5.23M	0.0%	+9.3%	1.165%
8/12/2021	JPMorgan Chase & Co.	115,856	$1.62M	0.0%	+69.0%	0.360%
8/12/2021	The Manufacturers Life Insurance Company	15,941	$0.22M	0.0%	+18.5%	0.050%
8/11/2021	Bank of New York Mellon Corp	66,595	$0.93M	0.0%	+5.4%	0.207%
8/11/2021	BlackRock Inc.	1,778,822	$24.83M	0.0%	+0.1%	5.533%
8/11/2021	Deutsche Bank AG	15,215	$0.21M	0.0%	+9.0%	0.047%
8/10/2021	State Board of Administration of Florida Retirement System	11,007	$0.15M	0.0%	N/A	0.037%
8/10/2021	Citigroup Inc.	39,330	$0.55M	0.0%	-54.2%	0.132%
8/10/2021	Rafferty Asset Management LLC	23,898	$0.33M	0.0%	-65.3%	0.080%
8/4/2021	IndexIQ Advisors LLC	27,484	$0.38M	0.0%	-6.7%	0.093%
8/4/2021	Russell Investments Group Ltd.	17,369	$0.24M	0.0%	-64.7%	0.058%
8/3/2021	Bedel Financial Consulting Inc.	3,837	$54K	0.0%	N/A	0.013%
8/2/2021	New York State Common Retirement Fund	49,891	$0.70M	0.0%	-14.8%	0.168%
8/2/2021	Advisor Group Holdings Inc.	10,063	$0.14M	0.0%	-76.2%	0.034%
7/30/2021	Alliancebernstein L.P.	14,234	$0.20M	0.0%	+31.4%	0.048%
5/18/2021	BVF Inc. IL	2,137,978	$31.47M	1.2%	-4.7%	7.207%
5/18/2021	Millennium Management LLC	12,635	$0.19M	0.0%	-78.2%	0.043%
5/18/2021	Morgan Stanley	188,949	$2.78M	0.0%	-30.3%	0.637%
5/18/2021	Jane Street Group LLC	11,496	$0.17M	0.0%	N/A	0.039%
5/17/2021	Royal Bank of Canada	2,061	$30K	0.0%	+81.3%	0.007%
5/17/2021	Rock Springs Capital Management LP	965,928	$14.22M	0.3%	-21.8%	3.256%
5/17/2021	Ameriprise Financial Inc.	434,788	$6.40M	0.0%	+63.8%	1.466%
5/17/2021	Nuveen Asset Management LLC	64,350	$0.95M	0.0%	-22.4%	0.217%
5/17/2021	Novo Holdings A S	468,902	$6.90M	0.3%	-18.7%	1.581%
5/17/2021	Goldman Sachs Group Inc.	255,800	$3.77M	0.0%	+514.6%	0.862%
5/14/2021	Dimensional Fund Advisors LP	342,506	$5.04M	0.0%	+36.9%	1.155%
5/13/2021	Barclays PLC	21,640	$0.32M	0.0%	+223.0%	0.073%
5/13/2021	Bank of New York Mellon Corp	63,172	$0.93M	0.0%	-9.6%	0.213%
5/13/2021	Citigroup Inc.	85,948	$1.27M	0.0%	+1,584.3%	0.290%
5/13/2021	Federated Hermes Inc.	9,473	$0.14M	0.0%	N/A	0.032%
5/12/2021	Northern Trust Corp	239,578	$3.53M	0.0%	-9.9%	0.808%
5/12/2021	Geode Capital Management LLC	363,611	$5.35M	0.0%	+1.5%	1.226%
5/12/2021	JPMorgan Chase & Co.	68,569	$1.01M	0.0%	-6.9%	0.231%
5/12/2021	E Fund Management Co. Ltd.	2,870	$42K	0.0%	N/A	0.010%
5/12/2021	UBS Group AG	31,027	$0.46M	0.0%	+116.3%	0.105%
5/11/2021	Vontobel Holding Ltd.	13,865	$0.20M	0.0%	N/A	0.047%
5/11/2021	Letko Brosseau & Associates Inc.	73,659	$1.08M	0.0%	+8.2%	0.250%
5/10/2021	Russell Investments Group Ltd.	49,167	$0.72M	0.0%	-5.0%	0.167%
5/10/2021	Rafferty Asset Management LLC	68,963	$1.02M	0.0%	N/A	0.234%
5/7/2021	BlackRock Inc.	1,776,596	$26.15M	0.0%	+2.6%	6.022%
5/7/2021	BNP Paribas Arbitrage SA	14,329	$0.21M	0.0%	+277.7%	0.049%
5/7/2021	D.A. Davidson & CO.	33,500	$0.49M	0.0%	+11.7%	0.114%
5/7/2021	IndexIQ Advisors LLC	29,468	$0.43M	0.0%	N/A	0.100%
5/5/2021	Los Angeles Capital Management LLC	27,960	$0.41M	0.0%	+25.6%	0.095%
5/3/2021	Zurcher Kantonalbank Zurich Cantonalbank	3,295	$49K	0.0%	N/A	0.011%
4/29/2021	Sentinel Pension Advisors Inc.	26,410	$0.43M	0.2%	+11.8%	0.090%
4/27/2021	Janney Montgomery Scott LLC	15,000	$0.22M	0.0%	+25.0%	0.051%
4/26/2021	Assenagon Asset Management S.A.	181,578	$2.67M	0.0%	+46.7%	0.615%
3/12/2021	DekaBank Deutsche Girozentrale	8,500	$0.17M	0.0%	N/A	0.031%
3/8/2021	Dimensional Fund Advisors LP	250,197	$4.85M	0.0%	+8.3%	0.920%
2/25/2021	Dimensional Fund Advisors LP	250,197	$4.85M	0.0%	+8.3%	0.920%
2/24/2021	Alyeska Investment Group L.P.	49,602	$0.96M	0.0%	-50.4%	0.182%
2/19/2021	JPMorgan Chase & Co.	73,675	$1.43M	0.0%	-18.0%	0.271%
2/16/2021	Alyeska Investment Group L.P.	49,602	$0.96M	0.0%	-50.4%	0.182%
2/16/2021	Morgan Stanley	271,258	$5.26M	0.0%	+1,082.9%	0.998%
2/16/2021	Nuveen Asset Management LLC	82,946	$1.61M	0.0%	+62.8%	0.305%
2/16/2021	Charles Schwab Investment Management Inc.	51,831	$1.01M	0.0%	+46.2%	0.191%
2/13/2021	American International Group Inc.	11,885	$0.23M	0.0%	+34.4%	0.044%
2/12/2021	Stifel Financial Corp	48,988	$0.95M	0.0%	-2.5%	0.180%
2/12/2021	Caas Capital Management LP	78,509	$1.52M	0.0%	N/A	0.289%
2/12/2021	AWM Investment Company Inc.	372,755	$7.23M	0.9%	-25.3%	1.371%
2/12/2021	The Manufacturers Life Insurance Company	13,366	$0.26M	0.0%	N/A	0.049%
2/11/2021	Northern Trust Corp	265,973	$5.16M	0.0%	+26.0%	0.978%
2/11/2021	Barclays PLC	6,700	$0.13M	0.0%	-21.7%	0.025%
2/11/2021	Citigroup Inc.	5,103	$99K	0.0%	+215.0%	0.019%
2/11/2021	Artal Group S.A.	500,000	$9.70M	0.2%	-16.7%	1.839%
2/11/2021	Steward Partners Investment Advisory LLC	1,900	$37K	0.0%	-44.1%	0.007%
2/10/2021	Rhumbline Advisers	19,216	$0.37M	0.0%	+31.2%	0.071%
2/10/2021	D.A. Davidson & CO.	30,000	$0.58M	0.0%	+1.7%	0.110%
2/10/2021	Panagora Asset Management Inc.	2,109	$41K	0.0%	-79.6%	0.008%
2/9/2021	Wells Fargo & Company MN	41,799	$0.81M	0.0%	+25.2%	0.154%
2/9/2021	Bank of New York Mellon Corp	69,883	$1.36M	0.0%	+35.6%	0.257%
2/8/2021	Alliancebernstein L.P.	10,834	$0.21M	0.0%	-14.9%	0.040%
2/8/2021	New York State Common Retirement Fund	58,529	$1.14M	0.0%	+29.1%	0.215%
2/8/2021	Russell Investments Group Ltd.	51,767	$1.01M	0.0%	-55.6%	0.190%
2/5/2021	Banque Cantonale Vaudoise	2,000	$39K	0.0%	+150.0%	0.007%
2/5/2021	Letko Brosseau & Associates Inc.	68,100	$1.32M	0.0%	N/A	0.250%
2/5/2021	BlackRock Inc.	1,731,600	$33.58M	0.0%	+60.8%	6.369%
2/4/2021	Los Angeles Capital Management LLC	22,257	$0.43M	0.0%	-27.8%	0.082%
2/4/2021	Cambridge Investment Research Advisors Inc.	34,423	$0.67M	0.0%	N/A	0.127%
2/4/2021	State of Wisconsin Investment Board	20,700	$0.40M	0.0%	-11.2%	0.076%
2/1/2021	Assenagon Asset Management S.A.	123,785	$2.40M	0.0%	N/A	0.455%
1/29/2021	Sentinel Pension Advisors Inc.	23,615	$0.46M	0.2%	N/A	0.087%

Data available starting January 2016

Spero Therapeutics, Inc. is a clinical-stage biopharmaceutical company, which focuses on identifying, developing, and commercializing novel treatments for multi-drug resistant, or MDR, bacterial infections. Its pipeline product candidates include SPR994, SPR741, and SPR206. The company was founded by Ankit A. Mahadevia and Laurence Rahme in April 2013 and is headquartered in Cambridge, MA.

Today's Range

Now: $16.86

$16.04

$16.98

50 Day Range

MA: $17.27

$13.03

$19.51

52 Week Range

Now: $16.86

$11.75

$23.64

Volume

65,226 shs

Average Volume

184,021 shs

Market Capitalization

$542.00 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.58

Who are the company insiders with the largest holdings of Spero Therapeutics?: Spero Therapeutics' top insider investors include:
Cristina Larkin (COO)
Ankit Mahadevia (CEO)
Aquilo Capital Management, Llc (Major Shareholder)
Who are the major institutional investors of Spero Therapeutics?: Spero Therapeutics' top institutional shareholders include:
Sentinel Pension Advisors Inc. — 0.06%
Which institutional investors are buying Spero Therapeutics stock?: In the previous quarter, SPRO stock was acquired by institutional investors including:
Sentinel Pension Advisors Inc.

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