Comparable stake leader
Qiming U.S. Healthcare Fund II, L.P.
SEC ownership of Icosavax, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001786255.
Disclosed value leader
Qiming U.S. Healthcare Fund II, L.P.
Comparable rows
0/10
Latest evidence
03 Jul 2023
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Qiming U.S. Healthcare Fund II, L.P.
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
03 Jul 2023
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001786255
- Issuer location
- Seattle, WA
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 Icosavax, Inc. (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
Qiming U.S. Healthcare Fu...
Disclosed value leader
Qiming U.S. Healthcare Fu...
Comparable rows
0/10
Latest evidence
03 Jul 2023
3/4/5
Highest disclosed value: $55,223,010
10 rows are not safely comparable across share classes.
Showing 1-8 of 10 holder rows.
Quick read
Qiming U.S. Healthcare Fund II, L.P. has the largest disclosed position value at $55.22M.
0 of 10 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 Qiming U.S. Healthcare Fund II, L.P.'s linked filing trail.
Disclosed position value
Top 5
Qiming U.S. Healthcare Fund II, L.P.
$55.22M
Sanofi
$49.45M
NanoDimension III, L.P.
$45.19M
Cormorant Asset Management, LP
$6.68M
ADAMS STREET PARTNERS LLC
$4.02M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 10 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Qiming U.S. Healthcare Fund II, L.P. |
3/4/5
Former 10% Owner
|
—
class O/S missing
|
$55,223,010
3,523,561 shares
|
— | 02 Aug 2021 |
| Sanofi |
3/4/5
10%+ Owner
|
—
class O/S missing
|
$49,449,386
3,155,169 shares
|
— | 02 Aug 2021 |
| NanoDimension III, L.P. |
3/4/5
Former 10% Owner
|
—
class O/S missing
|
$45,188,974
2,883,329 shares
|
— | 02 Aug 2021 |
| Cormorant Asset Management, LP |
3/4/5
Former 10% Owner
|
—
class O/S missing
|
$6,682,644
426,393 shares
|
— | 02 Aug 2021 |
| ADAMS STREET PARTNERS LLC |
3/4/5
Former 10% Owner
|
—
class O/S missing
|
$4,024,432
256,783 shares
|
— | 02 Aug 2021 |
| Tadataka Yamada |
3/4/5
Director
|
—
class O/S missing
|
$11,775,157
751,326 shares
|
— | 28 Jul 2021 |
| Douglas Holtzman |
3/4/5
Chief Scientific Officer
|
—
mixed-class rows
|
$4,589,629
321,467 shares
mixed-class rows
|
— | 03 Jul 2023 |
| Terry P. Gould |
3/4/5
Director
|
—
class O/S missing
|
$4,024,432
256,783 shares
|
— | 02 Aug 2021 |
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
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 01 Aug 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 1-20 of 21 reporting-owner rows connected to Icosavax, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
21
Largest Forms 3/4/5 holder
Qiming U.S. Healthcare Fund II, L.P.
Net 12M change
$0
Latest report
19 Feb 2024
Recent insider transactions for Icosavax, Inc.
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.