WAVEMAN · COMPANY

LONA · Leonabio, Inc.

LIVE

TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475

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LONA

Name: LeonaBio, Inc. (LONA) insider trading and ownership data
Creator: WaveMan
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LeonaBio, Inc.

PHARMA & BIOTECH · BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES) · CIK 0001620463

ACTIVIST 13D☆ WATCH

INSIDER NET · 180D

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

13F, latest reported quarter

REVENUE GROWTH

XBRL, annual

NET MARGIN

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

no Form 4 purchases or sales on file

CONGRESS

no member of Congress has reported trading it

FUNDS

15 funds added or opened last quarter

below 74% of Pharma & Biotech

REVENUE

no revenue reported in any filing

MARGIN

no margin: this company reports no revenue to divide by

BUYBACKS

no share repurchases reported

SHORT

0.4% of shares outstanding short · 2.0 days to cover · settled 2026-07-31

below 79% of Pharma & Biotech

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

Sermonix Pharmaceuticals, Inc. disclosed a 5%+ stake (36.9%) in the last six months.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN +95.3%

+95.3%12M

INSIDER SELL13D/G STAKE

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

An activist crossed the 5% line with declared intent.

The record shows 15 funds added last quarter. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

UTHR CPIX MRNA REGN LLY ALNY ELF CITR MDGL DNA VRTX NUVL

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

No insider purchases or sales are on record for LeonaBio, Inc. in the period covered. Source: SEC Form 4 filings, as of 2026-09-06.

INSIDER

FILED

VALUE

Litton Mark James

PRESIDENT and CEO

SELL

2026-03-04

5,156.0

$27.7K

Renninger Robert

CHIEF FINANCIAL OFFICER

SELL

2026-03-04

906.0

$4.9K

Worthington Mark

GENERAL COUNSEL and CCO

SELL

2026-03-04

1,328.0

$7.1K

CHURCH KEVIN

CHIEF SCIENTIFIC OFFICER

SELL

2026-03-04

1,359.0

$7.3K

San Martin Javier

CHIEF MEDICAL OFFICER

SELL

2026-03-04

1,720.0

$9.2K

5 TRANSACTIONS ON RECORD · THIN RECORD, READ IT AS SUCH

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Institutional holders

13F · holdings as of the latest quarter funds have reported

PERCEPTIVE ADVISORS LLC

1,859,322.0 sh

$17.1M

Kalehua Capital Management LLC

787,402.0 sh

$7.2M

ADAR1 Capital Management, LLC

777,100.0 sh

$7.1M

ACORN CAPITAL ADVISORS, LLC

634,539.0 sh

$5.8M

NEA Management Company, LLC

464,398.0 sh

$4.3M

5%+ owners

13D = intent to influence · 13G = passive

Sermonix Pharmaceuticals, Inc.

ACTIVIST 13D · 2026-08-31

36.9%

Portman David J.

ACTIVIST 13D · 2026-08-31

36.9%

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Simplify Propel Opportunities ETF

$1.5M POSITION · AS OF 2026-03-31

2.2%

VANGUARD EXTENDED MARKET INDEX FUND

$849.8K POSITION · AS OF 2026-03-31

0.0%

Dimensional US Core Equity 1 ETF

$23.8K POSITION · AS OF 2026-04-30

0.0%

U.S. MICRO CAP PORTFOLIO

$34.3K POSITION · AS OF 2026-04-30

0.0%

VANGUARD BALANCED INDEX FUND

$73.3K POSITION · AS OF 2026-03-31

0.0%

VANGUARD TOTAL STOCK MARKET INDEX FUND

$1.1M POSITION · AS OF 2026-03-31

0.0%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Clinical pipeline

ClinicalTrials.gov · 7 registered trials, 1 still enrolling or running — a status change here is dated weeks before the press release

Phase 1

0 ACTIVE

Phase 2

0 ACTIVE

Phase 3

1 ACTIVE

Multi-phase

0 ACTIVE

TRIALS MATCHED TO THIS TICKER BY SPONSOR NAME · STUDIES RUN UNDER A SUBSIDIARY'S OWN NAME ARE NOT INCLUDED

Executive pay vs shareholder return

DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself

CEO TOTAL

ACTUALLY PAID

OTHER NEOs AVG

TSR

PEER TSR

2025

$1.4M

$2.0M

$770.8K

-69%

—

2024

$3.2M

$1.2M

$1.4M

-76%

—

TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
OPERATING INCOME	$-102.3M	$-100.9M	$-125.5M	$-104.0M
NET INCOME	$-106.0M	$-97.0M	$-117.7M	$-95.6M
EPS (DILUTED)	-24.70	-25.19	-3.09	-2.53
OPERATING CASH FLOW	$-45.7M	$-97.2M	$-100.8M	$-72.5M
CASH	$69.3M	$48.4M	$90.6M	$96.0M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-06 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE