Rhythm Pharmaceuticals Ownership

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

Recent Insider Transactions

DB:1RV Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
15 Feb 24	Buy€39,400,581	Perceptive Advisors LLC	Company		838,556	€46.99

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of 1RV?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	357,324	0.516%
Hedge Funds	6,398,366	9.25%
VC/PE Firms	9,644,626	13.9%
Institutions	52,800,090	76.3%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 4%.

Top Shareholders

Top 25 shareholders own 95.75% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
11.7%	PRIMECAP Management Company	7,216,911	€409.1m	-1.31%	0.31%
11.2%	BlackRock, Inc.	6,889,258	€390.5m	2.19%	0.01%
10.4%	Baker Bros. Advisors LP	6,398,366	€362.7m	0%	3.57%
9.9%	RA Capital Management, L.P.	6,084,412	€344.9m	0%	4.46%
6.21%	Goldman Sachs Group, Investment Banking and Securities Investments	3,817,305	€216.4m	-27%	0.11%
5.79%	Perceptive Advisors LLC	3,560,214	€201.8m	3.3%	4.72%
5.61%	The Vanguard Group, Inc.	3,447,911	€195.5m	2.6%	no data
4.73%	New Enterprise Associates, Inc.	2,909,956	€165.0m	0%	7.84%
3.93%	Frazier Life Sciences Management, LP	2,416,952	€137.0m	1.93%	5.86%
3.24%	State Street Global Advisors, Inc.	1,993,166	€113.0m	-0.53%	no data
2.71%	Federated Hermes, Inc.	1,663,900	€94.3m	0.19%	0.25%
2.44%	Polar Capital Holdings Plc	1,500,000	€85.0m	0%	0.34%
2.11%	Driehaus Capital Management LLC	1,299,490	€73.7m	9.91%	0.46%
2.04%	Geode Capital Management, LLC	1,256,188	€71.2m	0.28%	0.01%
2%	Rock Springs Capital Management LP	1,228,093	€69.6m	-4.09%	2.5%
1.81%	Healthcare of Ontario Pension Plan	1,111,043	€63.0m	14.9%	0.16%
1.59%	Alkeon Capital Management, LLC	975,579	€55.3m	17.4%	0.43%
1.4%	Federated Equity Management Company of Pennsylvania	860,780	€48.8m	0%	0.28%
1.08%	Checkpoint Capital, LLC, Asset Management Arm	663,381	€37.6m	-28.1%	20.28%
1.06%	Commodore Capital LP	650,000	€36.8m	-46.9%	2.64%
1.04%	Loomis Sayles & Company, L.P.	636,628	€36.1m	0%	0.05%
1%	Hood River Capital Management LLC	614,598	€34.8m	0%	0.55%
0.97%	Janus Henderson Group plc	598,122	€33.9m	0.75%	0.01%
0.9%	T. Rowe Price Group, Inc.	550,530	€31.2m	4.68%	no data
0.81%	Opaleye Management Inc.	500,000	€28.3m	-2.91%	4.86%