Blueprint Medicines Ownership

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

Recent Insider Transactions

NasdaqGS:BPMC Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
13 Mar 24	SellUS$567,086	Philina Lee	Individual	6,276	US$90.55
07 Mar 24	SellUS$132,589	Ariel Hurley	Individual	1,462	US$90.69
07 Mar 24	SellUS$228,629	Christopher Murray	Individual	2,521	US$90.69
07 Mar 24	SellUS$266,084	Philina Lee	Individual	2,934	US$90.69
07 Mar 24	SellUS$280,867	Becker Hewes	Individual	3,097	US$90.69
07 Mar 24	SellUS$207,317	Percy Carter	Individual	2,286	US$90.69
07 Mar 24	SellUS$471,044	Tracey McCain	Individual	5,194	US$90.69
07 Mar 24	SellUS$396,950	Fouad Namouni	Individual	4,377	US$90.69
07 Mar 24	SellUS$550,488	Christina Rossi	Individual	6,070	US$90.69
07 Mar 24	SellUS$453,722	Michael Landsittel	Individual	5,003	US$90.69
07 Mar 24	SellUS$1,130,360	Kathryn Haviland	Individual	12,464	US$90.69
07 Mar 24	SellUS$461,884	Debra Durso-Bumpus	Individual	5,093	US$90.69
07 Mar 24	SellUS$1,000,583	Jeffrey Albers	Individual	11,033	US$90.69
04 Oct 23	SellUS$181,138	Fouad Namouni	Individual	3,769	US$48.06
05 Jun 23	SellUS$73,078	Becker Hewes	Individual	1,404	US$52.05
05 Jun 23	SellUS$120,102	Percy Carter	Individual	2,307	US$52.06

Insider Trading Volume

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

Ownership Breakdown

What is the ownership structure of BPMC?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	7,370	0.0114%
Individual Insiders	677,007	1.05%
Institutions	63,869,962	98.9%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 2.1%.

Top Shareholders

Top 25 shareholders own 83.62% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
10.8%	BlackRock, Inc.	6,584,176	US$607.7m	-0.05%	0.01%
10.2%	T. Rowe Price Group, Inc.	6,250,823	US$576.9m	-11.1%	0.05%
9.99%	The Vanguard Group, Inc.	6,114,970	US$564.4m	2.48%	0.01%
7.1%	FMR LLC	4,347,812	US$401.3m	-28.6%	0.03%
6.98%	Wellington Management Group LLP	4,276,333	US$394.7m	-15.8%	0.06%
4.71%	Rock Springs Capital Management LP	2,881,567	US$265.9m	7.31%	7.15%
3.96%	State Street Global Advisors, Inc.	2,424,200	US$223.7m	-7.67%	0.01%
2.86%	Pictet Asset Management Limited	1,753,547	US$161.8m	132%	0.11%
2.83%	William Blair Investment Management, LLC	1,734,461	US$160.1m	18.6%	0.21%
2.56%	Macquarie Investment Management Business Trust	1,568,947	US$144.8m	-0.69%	0.16%
2.37%	Lord, Abbett & Co. LLC	1,449,414	US$133.8m	0%	0.42%
2.22%	AllianceBernstein L.P.	1,357,983	US$125.3m	-9.3%	0.04%
2.19%	JP Morgan Asset Management	1,343,626	US$124.0m	-17.6%	0.02%
2.17%	Geode Capital Management, LLC	1,327,256	US$122.5m	4.8%	0.01%
1.74%	Morgan Stanley, Investment Banking and Brokerage Investments	1,064,877	US$98.3m	272%	0.01%
1.41%	Polar Capital Holdings Plc	865,000	US$79.8m	-16.8%	0.33%
1.38%	Emerald Advisers, LLC	846,686	US$78.1m	-21%	1.83%
1.33%	Woodline Partners LP	814,473	US$75.2m	35.3%	0.8%
1.16%	American Century Investment Management Inc	711,734	US$65.7m	6.08%	0.04%
1.11%	Brown Advisory Incorporated	679,920	US$62.7m	6.07%	0.08%
1%	Avidity Partners Management, L.P.	615,000	US$56.8m	-18.2%	2.11%
0.99%	Norges Bank Investment Management	605,951	US$55.9m	-4.43%	no data
0.94%	Northern Trust Global Investments	573,500	US$52.9m	-2.54%	0.01%
0.88%	Alkeon Capital Management, LLC	536,525	US$49.5m	-32%	0.37%
0.78%	Charles Schwab Investment Management, Inc.	476,063	US$43.9m	0%	0.01%