Spero Therapeutics Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:SPRO Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
02 Feb 24	SellUS$38,463	Kamal Hamed	Individual	28,075	US$1.37
02 Feb 24	SellUS$42,341	Tamara Joseph	Individual	30,906	US$1.37
02 Feb 24	SellUS$42,334	Satyavrat Shukla	Individual	30,901	US$1.37
02 Feb 24	SellUS$87,399	Ankit Mahadevia	Individual	63,795	US$1.37
02 Feb 24	SellUS$42,121	Timothy Keutzer	Individual	30,971	US$1.36
13 Sep 23	SellUS$50,160	Kamal Hamed	Individual	39,496	US$1.27
28 Aug 23	SellUS$11,390	Ankit Mahadevia	Individual	9,040	US$1.26
28 Aug 23	SellUS$2,336	Timothy Keutzer	Individual	1,854	US$1.26
28 Aug 23	SellUS$2,336	Tamara Joseph	Individual	1,854	US$1.26
28 Aug 23	SellUS$2,336	Satyavrat Shukla	Individual	1,854	US$1.26

Insider Buying: SPRO insiders have only sold shares in the past 3 months.

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 2.5%.

Top 25 shareholders own 43.47% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
17.1%	SR One Capital Management, LP	9,190,606	US$13.4m	0%	3.97%
7.97%	Anson Group	4,297,699	US$6.3m	3.32%	1.01%
3.05%	The Vanguard Group, Inc.	1,643,757	US$2.4m	5.53%	no data
1.98%	ADAR1 Capital Management, LLC	1,067,711	US$1.6m	0%	0.64%
1.88%	Atlas Venture L.P.	1,013,438	US$1.5m	0%	0.16%
1.65%	GV Management Company, LLC	889,979	US$1.3m	0%	0.11%
1.6%	Murchinson Ltd. , Asset Management Arm	862,700	US$1.3m	0%	0.25%
1.02%	Renaissance Technologies LLC	547,465	US$799.3k	0.05%	no data
0.89%	BlackRock, Inc.	480,599	US$701.7k	-0.25%	no data
0.87%	Novo Holdings A/S	468,902	US$684.6k	0%	no data
0.77%	Geode Capital Management, LLC	412,707	US$602.6k	0%	no data
0.75%	Columbia Management Investment Advisers, LLC	402,963	US$588.3k	-13.1%	no data
0.64%	Acadian Asset Management LLC	343,856	US$502.0k	26.4%	no data
0.62%	AWM Investment Company Inc	333,400	US$486.8k	0%	0.07%
0.46%	Oup Management Co., LLC	249,070	US$363.6k	0%	0.86%
0.41%	Ankit Mahadevia	219,869	US$321.0k	87.7%	no data
0.28%	Millennium Management LLC	148,857	US$217.3k	24.4%	no data
0.25%	Bridgeway Capital Management, LLC	134,800	US$196.8k	0%	no data
0.24%	State Street Global Advisors, Inc.	130,511	US$190.5k	0%	no data
0.23%	Dafna Capital Management, LLC	125,000	US$182.5k	0%	0.04%
0.23%	Squarepoint OPS LLC	122,802	US$179.3k	-5.17%	no data
0.23%	Kamal Hamed	121,418	US$177.3k	46.3%	no data
0.16%	Northern Trust Global Investments	88,881	US$129.8k	0%	no data
0.12%	XTX Holdings Limited, Asset Management Arm	65,966	US$96.3k	13%	0.02%
0.12%	Timothy Keutzer	63,813	US$93.2k	240%	no data