Comparable stake leader
ORBIMED ADVISORS LLC
SEC ownership of WINDWARD BIO GROUP AG
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002145089.
Disclosed value leader
—
Comparable rows
0/8
Latest evidence
12 Nov 2026
- Public ticker
- WWB
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
ORBIMED ADVISORS LLC
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
12 Nov 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002145089
- Issuer location
- 4052 Basel
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of WINDWARD BIO GROUP AG (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
ORBIMED ADVISORS LLC
Disclosed value leader
—
Comparable rows
0/8
Latest evidence
12 Nov 2026
3/4/5
Some rows are evidence-backed but not safely comparable across classes.
8 rows are not safely comparable across share classes.
Quick read
SEC ownership evidence is available, but the rows are not safely comparable across share classes.
0 of 8 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens ORBIMED ADVISORS LLC's linked filing trail.
Detailed SEC evidence table Showing 1-8 of 8 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ORBIMED ADVISORS LLC |
3/4/5
Director, 10%+ Owner
|
—
denominator unverified
|
—
531,632 shares
|
— | 12 Nov 2026 |
| OrbiMed Capital GP IX LLC |
3/4/5
Director, 10%+ Owner
|
—
denominator unverified
|
—
531,632 shares
|
— | 12 Nov 2026 |
| Luca Santarelli |
3/4/5
Chief Executive Officer, Director
|
—
denominator unverified
|
—
4,578,110 shares
|
— | 12 Nov 2026 |
| Claudia D'Augusta |
3/4/5
Chief Financial Officer
|
—
denominator unverified
|
—
927,760 shares
|
— | 12 Nov 2026 |
| Kevin Andrew Harris |
3/4/5
Chief Operating Officer
|
—
denominator unverified
|
—
927,760 shares
|
— | 12 Nov 2026 |
| Scott Applebaum |
3/4/5
Chief Legal & Corp Dev Officer
|
—
denominator unverified
|
—
927,760 shares
|
— | 12 Nov 2026 |
| Omar Khwaja |
3/4/5
Chief Medical Officer
|
—
denominator unverified
|
—
642,136 shares
|
— | 12 Nov 2026 |
| David P. Bonita |
3/4/5
Director
|
—
denominator unverified
|
—
531,632 shares
|
— | 12 Nov 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
No eligible buy or sell activity is available for this window. No eligible Buy or Sell transactions are available in this dataset since 15 Nov 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-11 of 11 reporting-owner rows connected to WINDWARD BIO GROUP AG. Open a relationship link for the CIK-to-CIK filing trail.
Rows
11
Largest Forms 3/4/5 holder
Sandip Kapadia
Net 12M change
$0
Latest report
12 Nov 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Sandip Kapadia | Director | Mixed | 12 Nov 2026 | |||
| Scott Applebaum | Chief Legal & Corp Dev Officer | Mixed | 12 Nov 2026 | |||
| Kevin Andrew Harris | Chief Operating Officer | Mixed | 12 Nov 2026 | |||
| Claudia D'Augusta | Chief Financial Officer | Mixed | 12 Nov 2026 | |||
| Otello Stampacchia | Director | Mixed | 12 Nov 2026 | |||
| Omar Khwaja | Chief Medical Officer | Mixed | 12 Nov 2026 | |||
| Luca Santarelli | Chief Executive Officer, Director | Mixed | 12 Nov 2026 | |||
| David P. Bonita | Director | Mixed | 12 Nov 2026 | |||
| Iqbal Rasool Mufti | Director | Mixed | 12 Nov 2026 | |||
| ORBIMED ADVISORS LLC | Director, 10%+ Owner | Mixed | 12 Nov 2026 | |||
| OrbiMed Capital GP IX LLC | Director, 10%+ Owner | Mixed | 12 Nov 2026 |
Recent insider transactions for WINDWARD BIO GROUP AG
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Orbimed Advisors Llc | WWB | Common Shares | 0 | 531,632 | 12 Nov 2026 | See footnotes | ||||
| Orbimed Advisors Llc | WWB | Common Shares | 0 | 531,632 | 12 Nov 2026 | See footnotes | ||||
| David P. Bonita | WWB | Common Shares | 0 | 531,632 | 12 Nov 2026 | See footnotes | ||||
| Luca Santarelli | WWB | Common Shares | 0 | 4,578,110 | 12 Nov 2026 | Direct | ||||
| Omar Khwaja | WWB | Common Shares | 0 | 642,136 | 12 Nov 2026 | Direct | ||||
| Claudia D'Augusta | WWB | Common Shares | 0 | 927,760 | 12 Nov 2026 | Direct | ||||
| Kevin Andrew Harris | WWB | Common Shares | 0 | 927,760 | 12 Nov 2026 | Direct | ||||
| Scott Applebaum | WWB | Common Shares | 0 | 927,760 | 12 Nov 2026 | Direct |
* marks a reported price that did not pass the local price check.