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Disclosery

RYTM RHYTHM PHARMACEUTICALS INC

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COM (common), issuer CIK 1649904

277 managers (286 13F filers) reported a position in RYTM shares at 2026-03-31, 73,573,451 shares in all. 55 filers opened a position and 54 filers sold out during the quarter.

Managers
277
13F filers
286
New
55
Added
102
Reduced
89
Sold out
54
Shares held by filers
73,573,451

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
MAI Capital Management2,710$236K<0.01%+2,70813F-HRTimeline
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.2,663$232K<0.01%13F-HRTimelineGroup
Blackstone Inc.in group Blackstone Inc.2,600$226K<0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
DRW Securities, LLC2,562$223K0.01%new13F-HRTimeline
TWO SIGMA SECURITIES, LLC2,545$221K0.03%-2,39813F-HRTimeline
CWM, LLCin group CWM, LLC2,536$221K<0.01%-23113F-HRTimelineGroup
Northwest & Ethical Investments L.P.2,491$217K0.01%new13F-HRTimeline
Integrated Wealth Concepts LLC2,480$216K<0.01%new13F-HRTimeline
CORNERSTONE PARTNERS CAPITAL MANAGEMENT…2,462$214K0.53%new13F-HRTimeline
Verdad Advisers, LP2,445$213K0.24%new13F-HRTimeline
CENTAURUS FINANCIAL, INC.2,314$201K0.01%-7513F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC2,218$192K<0.01%-3,88713F-HRTimelineGroup
ELEVATION WEALTH PARTNERS, LLC1,971$171K0.06%013F-HRTimeline
WHITTIER TRUST CO1,811$157K<0.01%013F-HRTimeline
KBC Group NVin group KBC Group NV1,707$148K<0.01%013F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.1,498$130K<0.01%+18813F-HRTimeline
Quantbot Technologies LP1,363$119K<0.01%new13F-HRTimeline
NISA INVESTMENT ADVISORS, LLC1,138$99K<0.01%-12,00113F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\1,041$90.5K<0.01%+8813F-HRTimelineGroup
Bellevue Group AGin group Bellevue Group AG1,016$88.4K<0.01%-6,48813F-HRTimelineGroup
Mitsubishi UFJ Asset Management (UK) Lt…in group Mitsubishi UFJ Trust & Bankin…1,000$87K0.04%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.939$81.7K<0.01%-10013F-HRTimelineGroup
Farther Finance Advisors, LLC645$56.8K<0.01%+313F-HRTimeline
Kemnay Advisory Services Inc.562$48.9K0.01%+35513F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…549$47.7K<0.01%+28313F-HR/ATimelineGroup
Arax Advisory Partners368$32.1K<0.01%-1313F-HRTimeline
Sterling Capital Management LLC343$29.8K<0.01%-113F-HRTimeline
SBI Securities Co., Ltd.302$26.3K<0.01%-4113F-HRTimeline
GAMMA Investing LLC267$23.2K<0.01%-9413F-HRTimeline
Covestor Ltd245$21K0.01%-33413F-HRTimeline
Smartleaf Asset Management LLC264$20.4K<0.01%-13513F-HRTimeline
SIGNATUREFD, LLC224$19.5K<0.01%-813F-HRTimeline
E Fund Management (Hong Kong) Co., Ltd.154$13.4K0.01%new13F-HRTimeline
True Wealth Design, LLC147$12.8K<0.01%013F-HRTimeline
Truvestments Capital LLC138$12K<0.01%013F-HRTimeline
Essential Partners LLC120$10.4K<0.01%-10313F-HRTimeline
Sound Income Strategies, LLC114$10K<0.01%new13F-HRTimeline
Basecamp Wealth Advisors LLC114$9.91K<0.01%-1113F-HRTimeline
DANSKE BANK A/S100$8.7K<0.01%-1,00013F-HRTimeline
Cassaday & Co Wealth Management LLC93$8.09K<0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC86$7.48K<0.01%-513F-HRTimeline
Allworth Financial LP83$7.22K<0.01%-2613F-HRTimeline
HARBOUR INVESTMENTS, INC.60$5.22K<0.01%013F-HRTimeline
WPG Advisers, LLC60$5.22K<0.01%013F-HRTimeline
EASTERN BANK59$5.13K<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA62$5K<0.01%-1,61413F-HRTimelineGroup
Larson Financial Group LLC52$4.52K<0.01%-2513F-HRTimeline
Cedar Mountain Advisors, LLC51$4.43K<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.50$4.35K<0.01%-4213F-HR/ATimelineGroup
IFP Advisors, Inc46$4K<0.01%+1013F-HRTimeline
Advisory Services Network, LLC37$3.22K<0.01%new13F-HRTimeline
Ascentis Independent Advisorsin group Ascentis Wealth Management, L…37$3.22K<0.01%new13F-HRTimelineGroup
Versant Capital Management, Inc36$3.13K<0.01%013F-HRTimeline
FIRST HORIZON CORP35$3.04K<0.01%+513F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC30$3K<0.01%-3613F-HRTimelineGroup
Parkside Financial Bank & Trust33$2.87K<0.01%013F-HRTimeline
Root Financial Partners, LLC31$2.7K<0.01%-1213F-HRTimeline
CVA Family Office, LLC28$2.44K<0.01%+1613F-HRTimeline
Parallel Advisors, LLC25$2.17K<0.01%013F-HR/ATimeline
Physician Wealth Advisors, Inc.16$1.39K<0.01%013F-HRTimeline
Bare Financial Services, Inc13$1.13K<0.01%-913F-HRTimeline
Whipplewood Advisors, LLC11$957<0.01%new13F-HRTimeline
Dogwood Wealth Management LLC11$957<0.01%new13F-HRTimeline
Keating Financial Advisory Services, In…11$957<0.01%+213F-HRTimeline
JFS WEALTH ADVISORS, LLC10$870<0.01%013F-HRTimeline
Fortitude Family Office, LLC9$783<0.01%+313F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK6$522<0.01%013F-HRTimelineGroup
TWIN PEAKS WEALTH ADVISORS, LLC6$522<0.01%new13F-HRTimeline
LRI Investments, LLC6$522<0.01%new13F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK5$435<0.01%new13F-HRTimelineGroup
GHP Investment Advisors, Inc.3$261<0.01%new13F-HRTimeline
DiNuzzo Private Wealth, Inc.3$261<0.01%013F-HRTimeline
Godfrey Financial Associates, Inc.3$261<0.01%new13F-HRTimeline
Pinnacle Wealth Planning Services, Inc.2$174<0.01%new13F-HRTimeline
HFM Investment Advisors, LLC1$87<0.01%-113F-HRTimeline
Bay Harbor Wealth Management, LLC1$86<0.01%013F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDin group NOMURA ASSET MANAGEMENT CO LTD0$00%013F-HRTimelineGroupValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.

Events

  • JPMORGAN CHASE & CO reported 3,563,667 RYTM shares, 5.1% of the class, as of 2026-09-30, in a 13G filed 2026-10-13. 0000019617-26-000351

    Accepted , ingested