Dianthus Therapeutics, Inc. (DNTH) Insider Trading

Over the last 3 months, DNTH insiders made 0 open-market buys and 27 sales, a net sale of -$27.2M (SEC Form 4). Over the last 6 months, 202 institutions increased and 124 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
27
Net (3m)
-$27.2M
Insider trades by month Buys Sells
Mar
Apr
May
Jun
Jul
Aug
Context3-month price +16.7%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Aug 19, 2026Read SimondirectorOption2,778$18.36
Aug 19, 2026Read SimondirectorSell2,778$117.55
Aug 14, 2026Veness Adam Mofficer: SVP, General Counsel and Sec.Option15,000$18.17
Aug 11, 2026Read SimondirectorOption2,777$18.36
Aug 11, 2026Read SimondirectorSell272$109.96
Aug 11, 2026McGeorge AnnedirectorSell700$111.41
Aug 11, 2026McGeorge AnnedirectorSell1,000$110.64
Aug 11, 2026McGeorge AnnedirectorSell1,800$109.30
Aug 11, 2026Read SimondirectorSell470$111.05
Aug 11, 2026Read SimondirectorSell397$111.77
Aug 11, 2026Veness Adam Mofficer: SVP, General Counsel and Sec.Option3,833$17.88
Aug 11, 2026Veness Adam Mofficer: SVP, General Counsel and Sec.Sell3,217$110.61
Aug 11, 2026Veness Adam Mofficer: SVP, General Counsel and Sec.Sell616$111.18
Aug 11, 2026Veness Adam Mofficer: SVP, General Counsel and Sec.Option16,167$17.88
Aug 11, 2026Veness Adam Mofficer: SVP, General Counsel and Sec.Sell16,167$110.38
Aug 11, 2026Read SimondirectorSell831$108.95
Aug 11, 2026McGeorge AnnedirectorSell2,800$108.38
Aug 11, 2026McGeorge AnnedirectorSell1,450$107.58
Aug 11, 2026McGeorge AnnedirectorOption1,250$19.36
Aug 11, 2026McGeorge AnnedirectorOption6,500$11.20
Aug 11, 2026Read SimondirectorSell737$108.17
Aug 11, 2026Read SimondirectorSell70$107.11
Aug 7, 2026Garcia Marinodirector, officer: CEO AND PRESIDENTOption126,000$8.44
Aug 7, 2026Garcia Marinodirector, officer: CEO AND PRESIDENTSell21,909$108.72
Aug 7, 2026Garcia Marinodirector, officer: CEO AND PRESIDENTSell104,091$107.96
Aug 7, 2026Garcia Marinodirector, officer: CEO AND PRESIDENTSell800$110.76
Aug 7, 2026Garcia Marinodirector, officer: CEO AND PRESIDENTSell2,536$110.02
Aug 7, 2026Garcia Marinodirector, officer: CEO AND PRESIDENTSell2,373$109.10
Aug 7, 2026Garcia Marinodirector, officer: CEO AND PRESIDENTSell23,907$108.05
Aug 7, 2026Garcia Marinodirector, officer: CEO AND PRESIDENTSell10,384$107.49

Source: DNTH SEC Form 4 filings, latest Aug 19, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their DNTH positions over the last 6 months (SEC Form 13F).

Increased
202
New positions
161
Reduced
124
Sold out
32
Largest moves
InstitutionActionSharesFiled
FMR LLCIncreased8.2MAug 13, 2026
FMR LLCIncreased7.8MMay 15, 2026
BlackRock, Inc.Increased4.1MAug 7, 2026
T. Rowe Price Investment Management, Inc.Increased3.9MAug 14, 2026
WELLINGTON MANAGEMENT GROUP LLPIncreased3.2MAug 14, 2026
BLACKROCK, INC.Increased3.2MMay 13, 2026
RA CAPITAL MANAGEMENT, L.P.Increased2.6MMay 15, 2026
WELLINGTON MANAGEMENT GROUP LLPIncreased2.6MMay 15, 2026
FAIRMOUNT FUNDS MANAGEMENT LLCIncreased2.5MMay 15, 2026
Fairmount Funds Management LLCUnchanged2.5MAug 14, 2026
PRICE T ROWE ASSOCIATES INC /MD/Increased2.5MAug 14, 2026
STATE STREET CORPIncreased2.4MAug 7, 2026
VANGUARD CAPITAL MANAGEMENT LLCIncreased2.2MAug 13, 2026
Avidity Partners Management LPUnchanged2.1MAug 14, 2026
AVIDITY PARTNERS MANAGEMENT LPUnchanged2.1MMay 28, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.