Comparable stake leader
Stonepine Capital Management, LLC
SEC ownership of OptiNose, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001494650.
Disclosed value leader
MVM Partners, LLC
Comparable rows
4/14
Latest evidence
30 May 2025
- Parsed ownership sources
- 13D/G and 3/4/5
- Largest SEC-reported holder
- Stonepine Capital Management, LLC
- Latest 13D/G holder
- Stonepine Capital Management, LLC
- Latest parsed ownership date
- 30 May 2025
- Issuer CIK
- 0001494650
- Issuer location
- Yardley, PA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of OptiNose, 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
Stonepine Capital Managem...
Disclosed value leader
MVM Partners, LLC
Comparable rows
4/14
Latest evidence
30 May 2025
13D/G
3/4/5
Lead comparable stake: 7.8%
10 rows are not safely comparable across share classes.
13D/G row: Stonepine Capital Management, LLC
Showing 1-8 of 14 holder rows.
Quick read
Stonepine Capital Management, LLC leads the comparable SEC ownership view at 7.8%.
4 of 14 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 Stonepine Capital Management, LLC's linked filing trail.
Comparable ownership
Top 4
Stonepine Capital Management, LLC
7.8%
KINGDON CAPITAL MANAGEMENT, L.L.C.
5.1%
GREAT POINT PARTNERS LLC
4.9%
FMR LLC
1.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 14 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Stonepine Capital Management, LLC |
13D/G
|
7.8%
|
$7,176,688
788,647 shares
|
+$1,819,909 | 31 Mar 2025 |
| KINGDON CAPITAL MANAGEMENT, L.L.C. |
13D/G
|
5.1%
|
$4,736,414
520,485 shares
|
$0 | 09 Apr 2025 |
| GREAT POINT PARTNERS LLC |
13D/G
|
4.9%
|
$4,789,466
526,315 shares
|
-$3,369,457 | 31 Mar 2025 |
| FMR LLC |
13D/G
|
1.4%
|
$1,294,517
142,255 shares
|
$0 | 30 May 2025 |
| MVM Partners, LLC |
3/4/5
10%+ Owner
|
—
mixed-class rows
|
$16,796,052
16,710,526 shares
mixed-class rows
|
— | 31 Dec 2022 |
| MVM Partners LLP |
3/4/5
10%+ Owner
|
—
class O/S missing
|
$14,375,000
12,500,000 shares
|
— | 18 Nov 2021 |
| Avista Capital Partners II GP, LLC |
3/4/5
10%+ Owner
|
—
class O/S missing
|
$55,626
48,370 shares
|
— | 12 May 2023 |
| Peter K. Miller |
3/4/5
Chief Executive Officer, Director
|
—
class O/S missing
|
$1,101,467
957,797 shares
|
— | 13 Jan 2023 |
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 08 Jun 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 20 reporting-owner rows connected to OptiNose, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
20
Largest Forms 3/4/5 holder
MVM Partners, LLC
Net 12M change
$0
Latest report
21 May 2025
Recent insider transactions for OptiNose, 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.