Moderna, Inc.
Moderna, Inc. (MRNA) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MRNA · as of Mar 31, 2025
Ownership Breakdown
767
Institutional Holders
▼ 62 vs Q4
$8.00B
Total Inst. Value
▼ $3.52B vs Q4
396.79M
Shares Outstanding
freeFloat 93.27%
282.23M
13F Shares Held
▲ 5.06M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MRNA largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC biological products, (no diagnostic substances) | 40.40M | 10.47% | 10.47% | $1.15T | May 9, 2025 | ▲ 72.8K |
BLACKROCK, INC. biological products, (no diagnostic substances) | 27.18M | 7.04% | 7.04% | $770.59B | May 2, 2025 | ▲ 1.39M |
BAILLIE GIFFORD & CO biological products, (no diagnostic substances) | 24.95M | 6.46% | 6.46% | $707.29B | May 7, 2025 | ▼ 13.94M |
FMR LLC biological products, (no diagnostic substances) | 21.13M | 5.47% | 5.47% | $599.04B | May 12, 2025 | ▲ 2.47M |
STATE STREET CORP biological products, (no diagnostic substances) | 17.78M | 4.61% | 4.61% | $504.02B | May 15, 2025 | ▲ 201.3K |
GEODE CAPITAL MANAGEMENT, LLC biological products, (no diagnostic substances) | 7.46M | 1.93% | 1.93% | $210.65B | May 13, 2025 | ▲ 215.2K |
MORGAN STANLEY biological products, (no diagnostic substances) | 7.44M | 1.93% | 1.93% | $210.88B | May 15, 2025 | ▲ 3.19M |
THELEME PARTNERS LLP biological products, (no diagnostic substances) | 7.24M | 1.88% | 1.88% | $205.32B | May 15, 2025 | ▼ 64.5K |
UBS GROUP AG biological products, (no diagnostic substances) | 6.38M | 1.65% | 1.65% | $180.80B | May 13, 2025 | ▲ 1.30M |
INVESCO LTD. biological products, (no diagnostic substances) | 5.88M | 1.52% | 1.52% | $166.80B | May 12, 2025 | ▲ 877.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
35
Increased
+42.19M shares0
New Positions
first time holders12
Decreased
−19.90M shares0
Sold Out
fully exitedNet shares change (top 50)
+22.29M
+42.19M / −19.90M
Net new holders
+23
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MRNA insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
26
Buy transactions
26
Sell transactions
1.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Mock James M Chief Financial Officer | May 28, 2026 | Tax Withhold | 159 | $47.61 | $7.6K | 58.3K | Form 4 ↗ |
Mock James M Chief Financial Officer | May 27, 2026 | Tax Withhold | 374 | $47.03 | $17.6K | 58.1K | Form 4 ↗ |
Klinger Shannon Thyme Chief Legal Officer | May 28, 2026 | Tax Withhold | 159 | $47.61 | $7.6K | 66.3K | Form 4 ↗ |
Klinger Shannon Thyme Chief Legal Officer | May 27, 2026 | Tax Withhold | 374 | $47.03 | $17.6K | 66.2K | Form 4 ↗ |
Hoge Stephen President | May 28, 2026 | Tax Withhold | 295 | $47.61 | $14.0K | 1.48M | Form 4 ↗ |
Hoge Stephen President | May 27, 2026 | Tax Withhold | 695 | $47.03 | $32.7K | 1.48M | Form 4 ↗ |
AFEYAN NOUBAR director | May 21, 2026 | Sale | 9,263 | $46.84 | $433.9K | 3.9K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Moderna, Inc. (MRNA) is primarily owned by institutional investors, who hold approximately 71.1% of total shares outstanding. Company insiders own approximately 6.73%, while retail and public investors account for the remaining 22.14%.
The largest institutional shareholder of Moderna, Inc. is VANGUARD GROUP INC, holding approximately 40.40 million shares — equal to 10.47% of outstanding shares — as of March 31, 2025.
A total of 767 institutional investors currently hold MRNA stock, with a combined institutional value of approximately $8.00 billion as of the most recent 13F filing period.
Frequently asked questions
MRNA ownershipModerna, Inc. (MRNA) is primarily owned by institutional investors, who hold approximately 71.1% of shares. The largest shareholder is VANGUARD GROUP INC with a 10.47% stake. Company insiders hold 6.73%. Data sourced from SEC Form 13F as of March 31, 2025.