Quick Takeaways
- Metsera, Inc. has 15 insiders with reported activity on this page.
- Net insider value flow over the last year: -$11,817.
- Recent transaction rows are available for direct filing-level review.
- Info
- Insider Trading
- Financials
Insider Transactions Reported by 15 Insiders of Metsera, Inc.
- Location
- New York, NY
What Changed
- Buy value: ; sell value: $11,817.
- Net share flow: -193.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Official SEC Source
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$11,817.
Buys
$0
Shares: 0
Insiders: 0
Sells
$11,817
Shares: 193
Insiders: 1
Net
-$11,817
Shares: -193
Insiders: -1
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 193 | $0 | $11,817 | -$11,817 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Metsera, Inc. executives and other stock owners filed with the SEC include:
Top shareholders of Metsera, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Validae Health, L.P. |
13D/G
|
Christopher Whitten Bernard |
12%
|
13,136,644
|
$346,544,669 | $0 | 31 Mar 2025 | |
| VANGUARD GROUP INC |
13D/G
|
The Vanguard Group |
5.5%
|
5,824,993
|
$304,823,049 | $0 | 30 Sep 2025 | |
| JANUS HENDERSON GROUP PLC |
13D/G
|
— |
3.1%
|
3,242,849
|
$228,620,854 | -$148,748,091 | 31 Dec 2025 | |
| Jon P. Stonehouse |
3/4/5
|
Director |
—
mixed-class rows
|
2,688
mixed-class rows
|
$945,531 | — | 13 Nov 2025 | |
| IFP Advisors, Inc |
13F
|
Company |
0%
|
8
|
$564 | — | 31 Dec 2025 | |
| Wellington Biomedical Innovation Master Investors (Cayman) II L.P. |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
1,857,699
|
— | — | 30 Jan 2025 | |
| Christopher Visioli |
3/4/5
|
CHIEF FINANCIAL OFFICER |
—
class O/S missing
|
21,250
|
— | — | 13 Nov 2025 | |
| Christopher Witten Bernard |
3/4/5
|
PRESIDENT AND CHIEF EXECUTIVE OFFICER, Director |
—
class O/S missing
|
21,250
|
— | — | 13 Nov 2025 | |
| Brian Hubbard |
3/4/5
|
CHIEF SCIENTIFIC OFFICER |
—
class O/S missing
|
17,000
|
— | — | 13 Nov 2025 | |
| Steven Marso |
3/4/5
|
CHIEF MEDICAL OFFICER |
—
class O/S missing
|
17,000
|
— | — | 13 Nov 2025 | |
| Matthew Lang |
3/4/5
|
CHIEF LEGAL OFFICER |
—
class O/S missing
|
12,500
|
— | — | 13 Nov 2025 | |
| Clive Meanwell |
3/4/5
|
EXECUTIVE CHAIRMAN, Director |
—
class O/S missing
|
5,375
|
— | — | 13 Nov 2025 | |
| Paul L. Berns |
3/4/5
|
Director |
—
class O/S missing
|
4,031
|
— | — | 13 Nov 2025 | |
| Joshua Pinto |
3/4/5
|
Director |
—
class O/S missing
|
2,688
|
— | — | 13 Nov 2025 | |
| Kristina M. Burow. |
3/4/5
|
Director |
—
class O/S missing
|
2,688
|
— | — | 13 Nov 2025 |
Recent Insider Transactions by Companies or Individuals for Metsera, Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Fmr Llc | MTSR | Common Stock | Other | -100% | -2,230,450 | 0 | 13 Nov 2025 | Shares held by persons and entities whose shares are subject to reporting by the undersigned. | ||
| Fmr Llc | MTSR | Common Stock | Other | -100% | -3,010 | 0 | 13 Nov 2025 | F-Prime Inc. | ||
| ARCH Venture Partners XII, LLC | MTSR | Common Stock | Disposed to Issuer | -100% | -26,816,808 | 0 | 13 Nov 2025 | See Footnote | ||
| Steven Marso | MTSR | Common Stock | Disposed to Issuer | -100% | -17,000 | 0 | 13 Nov 2025 | Direct | ||
| Steven Marso | MTSR | Stock Option (right to buy) | Disposed to Issuer | -100% | -971,164 | 0 | 13 Nov 2025 | Direct | ||
| Steven Marso | MTSR | Restricted Stock Unit | Award | 17,000 | 17,000 | 13 Nov 2025 | Direct | |||
| Population Health Partners GP, LLC | MTSR | Common Stock | Disposed to Issuer | -100% | -12,639,787 | 0 | 13 Nov 2025 | By Population Health Partners, L.P. | ||
| Population Health Partners GP, LLC | MTSR | Common Stock | Disposed to Issuer | -100% | -127,675 | 0 | 13 Nov 2025 | Direct | ||
| Brian Hubbard | MTSR | Common Stock | Disposed to Issuer | -100% | -17,000 | 0 | 13 Nov 2025 | Direct | ||
| Brian Hubbard | MTSR | Stock Option (right to buy) | Disposed to Issuer | -100% | -545,581 | 0 | 13 Nov 2025 | Direct | ||
| Brian Hubbard | MTSR | Restricted Stock Unit | Award | 17,000 | 17,000 | 13 Nov 2025 | Direct | |||
| Christopher Witten Bernard | MTSR | Common Stock | Disposed to Issuer | -100% | -12,767,462 | 0 | 13 Nov 2025 | Held by Population Health Partners, L.P. and Population Health GP LLC | ||
| Christopher Witten Bernard | MTSR | Common Stock | Disposed to Issuer | -100% | -21,250 | 0 | 13 Nov 2025 | Direct | ||
| Christopher Witten Bernard | MTSR | Stock Option (right to buy) | Disposed to Issuer | -100% | -2,051,078 | 0 | 13 Nov 2025 | Direct | ||
| Christopher Witten Bernard | MTSR | Restricted Stock Unit | Award | 21,250 | 21,250 | 13 Nov 2025 | Direct | |||
| Joshua Pinto | MTSR | Common Stock | Disposed to Issuer | -100% | -2,688 | 0 | 13 Nov 2025 | Direct | ||
| Joshua Pinto | MTSR | Stock Option (right to buy) | Disposed to Issuer | -100% | -148,953 | 0 | 13 Nov 2025 | By LLC | ||
| Joshua Pinto | MTSR | Stock Option (right to buy) | Disposed to Issuer | -100% | -16,125 | 0 | 13 Nov 2025 | Direct | ||
| Joshua Pinto | MTSR | Restricted Stock Unit | Award | 2,688 | 2,688 | 13 Nov 2025 | Direct | |||
| Christopher Visioli | MTSR | Common Stock | Disposed to Issuer | -100% | -21,250 | 0 | 13 Nov 2025 | Direct | ||
| Christopher Visioli | MTSR | Stock Option (right to buy) | Disposed to Issuer | -100% | -745,814 | 0 | 13 Nov 2025 | Direct | ||
| Christopher Visioli | MTSR | Restricted Stock Unit | Award | 21,250 | 21,250 | 13 Nov 2025 | Direct | |||
| Matthew Lang | MTSR | Common Stock | Disposed to Issuer | -100% | -12,500 | 0 | 13 Nov 2025 | Direct | ||
| Matthew Lang | MTSR | Stock Option (right to buy) | Disposed to Issuer | -100% | -371,875 | 0 | 13 Nov 2025 | Direct | ||
| Matthew Lang | MTSR | Restricted Stock Unit | Award | 12,500 | 12,500 | 13 Nov 2025 | Direct | |||
| Kristina M. Burow. | MTSR | Common Stock | Disposed to Issuer | -100% | -51,411,394 | 0 | 13 Nov 2025 | See footnote | ||
| Kristina M. Burow. | MTSR | Common Stock | Disposed to Issuer | -100% | -2,688 | 0 | 13 Nov 2025 | Direct | ||
| Kristina M. Burow. | MTSR | Stock Option (right to buy) | Disposed to Issuer | -100% | -165,078 | 0 | 13 Nov 2025 | Direct | ||
| Kristina M. Burow. | MTSR | Restricted Stock Unit | Award | 2,688 | 2,688 | 13 Nov 2025 | Direct | |||
| Jon P. Stonehouse | MTSR | Common Stock | Disposed to Issuer | -100% | -2,688 | 0 | 13 Nov 2025 | Direct | ||
| Jon P. Stonehouse | MTSR | Stock Option (right to buy) | Disposed to Issuer | -100% | -47,730 | 0 | 13 Nov 2025 | Direct | ||
| Jon P. Stonehouse | MTSR | Restricted Stock Unit | Award | 2,688 | 2,688 | 13 Nov 2025 | Direct | |||
| Clive Meanwell | MTSR | Common Stock | Disposed to Issuer | -100% | -12,767,462 | 0 | 13 Nov 2025 | Held by Population Health Partners, L.P. and Population Health GP LLC | ||
| Clive Meanwell | MTSR | Common Stock | Disposed to Issuer | -100% | -5,375 | 0 | 13 Nov 2025 | Direct | ||
| Clive Meanwell | MTSR | Stock Option (right to buy) | Disposed to Issuer | -100% | -330,157 | 0 | 13 Nov 2025 | Direct | ||
| Clive Meanwell | MTSR | Restricted Stock Unit | Award | 5,375 | 5,375 | 13 Nov 2025 | Direct | |||
| Paul L. Berns | MTSR | Common Stock | Disposed to Issuer | -100% | -15,837,362 | 0 | 13 Nov 2025 | See footnote | ||
| Paul L. Berns | MTSR | Common Stock | Disposed to Issuer | -100% | -961,590 | 0 | 13 Nov 2025 | Direct | ||
| Paul L. Berns | MTSR | Stock Option (right to buy) | Disposed to Issuer | -100% | -247,618 | 0 | 13 Nov 2025 | Direct | ||
| Paul L. Berns | MTSR | Restricted Stock Unit | Award | 4,031 | 4,031 | 13 Nov 2025 | Direct | |||
| Validae Health, L.P. | MTSR | Common Stock | Other | -100% | -12,767,462 | 0 | 11 Nov 2025 | Direct | ||
| Fmr Llc | MTSR | Common Stock | Gift | -27.8% | -860,722 | 2,230,450 | 10 Nov 2025 | Shares held by persons and entities whose shares are subject to reporting by the undersigned. | ||
| Fmr Llc | MTSR | Common Stock | Other | 552.4% | 2,617,340 | 3,091,172 | 03 Nov 2025 | Shares held by persons and entities whose shares are subject to reporting by the undersigned. | ||
| Fmr Llc | MTSR | Common Stock | Other | -100% | -2,356,081 | 0 | 03 Nov 2025 | Impresa Fund IV LLC | ||
| Fmr Llc | MTSR | Common Stock | Sale | -0.01% | $11,817 | $61.23 | -193 | 2,356,081 | 03 Nov 2025 | Impresa Fund IV LLC |
| Fmr Llc | MTSR | Common Stock | Other | 2,356,274 | 2,356,274 | 03 Nov 2025 | Impresa Fund IV LLC | |||
| Fmr Llc | MTSR | Common Stock | Other | 236.3% | 2,115 | 3,010 | 03 Nov 2025 | F-Prime Inc. | ||
| Fmr Llc | MTSR | Common Stock | Other | -100% | -47,843 | 0 | 03 Nov 2025 | F-Prime Capital Partners Life Sciences Advisors Fund VIII LP | ||
| Fmr Llc | MTSR | Common Stock | Other | 47,843 | 47,843 | 03 Nov 2025 | F-Prime Capital Partners Life Sciences Advisors Fund VIII LP | |||
| Fmr Llc | MTSR | Common Stock | Other | -100% | -3,189,540 | 0 | 03 Nov 2025 | F-Prime Capital Partners Life Sciences Fund VIII LP |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.