PERCEPTIVE ADVISORS LLC

Holdings History for RHYTHM PHARMACEUTICALS, INC. - Common Stock, $0.001 par value per share (RYTM)

Symbol: RYTM on Nasdaq
Investment type: Equity / Common Stock, $0.001 par value per share
Latest Disclosed Shares Owned: 4,423,441 shares
Security Ownership %: 6.8%

Shares, Excluding Options vs Price

Value, Excluding Options

Perceptive Advisors LLC ownership in RHYTHM PHARMACEUTICALS, INC. Common Stock, $0.001 par value per share (RYTM)

15 May 2025 - Perceptive Advisors LLC has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,423,441 shares of RHYTHM PHARMACEUTICALS, INC. Common Stock, $0.001 par value per share (RYTM). This represents 6.8% ownership of the company. This is the first filing by PERCEPTIVE ADVISORS LLC disclosing ownership of RHYTHM PHARMACEUTICALS, INC. Common Stock, $0.001 par value per share (RYTM).

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
Perceptive Advisors LLC	6.8%		$284,913,835	4,423,441			$64.41	13G/A	31 Mar 2025	15 May 2025, 18:20

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	5%	+0.21%	$272,565,693	2,546,391	+107,422	+4.4%	$107.04	Q4 2025
30 Sep 2025		0%	$42,079,099	416,666,000	0		$0.10 ^*	Q3 2025
30 Sep 2025	7.2%	+0.06%	$246,311,479	2,438,969	+20,670	+0.85%	$100.99	Q3 2025
30 Jun 2025	5.7%	-0.31%	$152,812,314	2,418,299	-130,146	-5.1%	$63.19	Q2 2025
31 Mar 2025	4.8%	-2.1%	$134,991,132	2,548,445	-1,132,028	-31%	$52.97	Q1 2025
31 Dec 2024	5.7%	+0.19%	$206,032,879	3,680,473	+120,259	+3.4%	$55.98	Q4 2024
30 Sep 2024	4%	+0.13%	$186,519,611	3,560,214	+113,635	+3.3%	$52.39	Q3 2024
30 Jun 2024	3.4%	+0.13%	$141,516,534	3,446,579	+178,000	+5.4%	$41.06	Q2 2024
31 Mar 2024	2.5%	+1.1%	$141,627,528	3,268,579	+1,114,469	+52%	$43.33	Q1 2024
31 Dec 2023	2.2%	+1.8%	$99,024,437	2,154,110	+1,773,282	+466%	$45.97	Q4 2023
30 Sep 2023	0.29%	+0.29%	$8,730,482	380,828	+380,828	NEW	$22.93	Q3 2023
30 Jun 2020		-0.07%	$0	0	-170,859	-100%	$103.87	Q2 2020
31 Mar 2020	0.07%	0%	$2,600,000	170,859	0		$15.22	Q1 2020
31 Dec 2019	0.08%	+0.08%	$3,922,000	170,859	+170,859	NEW	$22.95	Q4 2019
30 Sep 2019		-0.13%	$0	0	-262,970	-100%	$103.87	Q3 2019
30 Jun 2019	0.13%	-0.12%	$5,785,000	262,970	-240,000	-48%	$22.00	Q2 2019
31 Mar 2019	0.39%	-0%	$13,786,000	502,970	-6,216	-1.2%	$27.41	Q1 2019
31 Dec 2018	0.54%	-0.17%	$13,763,000	509,186	-155,000	-23%	$27.03	Q4 2018
30 Sep 2018	0.53%	-0.11%	$19,374,000	664,186	-136,500	-17%	$29.17	Q3 2018
30 Jun 2018	0.67%	+0.17%	$25,029,000	800,686	+208,400	+35%	$31.26	Q2 2018
31 Mar 2018	0.33%	-0.09%	$11,786,000	592,286	-152,849	-21%	$19.90	Q1 2018
31 Dec 2017	0.72%	+0.72%	$21,654,000	745,135	+745,135	NEW	$29.06	Q4 2017

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.