Corning Incorporated
Corning Incorporated (GLW) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · GLW · as of Mar 31, 2025
Ownership Breakdown
1,529
Institutional Holders
▼ 8 vs Q4
$28.48B
Total Inst. Value
▼ $799.91M vs Q4
860.64M
Shares Outstanding
freeFloat 91.76%
623.21M
13F Shares Held
▲ 6.31M 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
GLW largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC drawing & insulating of nonferrous wire | 96.37M | 11.27% | 11.27% | $4.41T | May 9, 2025 | ▼ 3.53M |
BLACKROCK, INC. drawing & insulating of nonferrous wire | 62.84M | 7.35% | 7.35% | $2.88T | May 2, 2025 | ▼ 502.6K |
STATE STREET CORP drawing & insulating of nonferrous wire | 36.06M | 4.22% | 4.22% | $1.65T | May 15, 2025 | ▲ 1.42M |
GEODE CAPITAL MANAGEMENT, LLC drawing & insulating of nonferrous wire | 19.33M | 2.26% | 2.26% | $882.59B | May 13, 2025 | ▲ 860.2K |
WELLINGTON MANAGEMENT GROUP LLP drawing & insulating of nonferrous wire | 18.48M | 2.16% | 2.16% | $845.96B | May 13, 2025 | ▼ 10.17M |
BANK OF AMERICA CORP /DE/ drawing & insulating of nonferrous wire | 17.56M | 2.05% | 2.05% | $804.00B | May 15, 2025 | ▲ 4.21M |
PRICE T ROWE ASSOCIATES INC /MD/ drawing & insulating of nonferrous wire | 17.01M | 1.99% | 1.99% | $778.52B | May 14, 2025 | ▼ 10.33M |
MORGAN STANLEY drawing & insulating of nonferrous wire | 15.35M | 1.80% | 1.80% | $702.90B | May 15, 2025 | ▼ 136.3K |
STATE FARM MUTUAL AUTOMOBILE INSURANCE CO drawing & insulating of nonferrous wire | 13.92M | 1.63% | 1.63% | $637.25B | May 13, 2025 | — held |
AMERIPRISE FINANCIAL INC drawing & insulating of nonferrous wire | 12.73M | 1.49% | 1.49% | $582.00B | May 14, 2025 | ▼ 757.2K |
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
24
Increased
+32.36M shares3
New Positions
first time holders22
Decreased
−33.16M shares0
Sold Out
fully exitedNet shares change (top 50)
791.7K
+32.36M / −33.16M
Net new holders
+5
3 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
GLW 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.
41
Buy transactions
54
Sell transactions
0.76
Buy/Sell ratio
$1M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Amin Jaymin SVP and Chief Tech. Officer | May 22, 2026 | Sale | 27,395 | $192.14 | $5.26M | 94.4K | Form 4 ↗ |
Nelson Avery H III Executive Vice President & COO | May 15, 2026 | Sale | 20,000 | $195.93 | $3.92M | 70.1K | Form 4 ↗ |
Verkleeren Ronald L SVP Emerging Innovations Group | May 13, 2026 | Sale | 10,000 | $207.77 | $2.08M | 48.1K | Form 4 ↗ |
Becker Stefan SVP, Finance & Corp Controller | May 13, 2026 | Gift | 126 | — | — | 7.1K | Form 4 ↗ |
TILLMAN MICHAUNE D SVP and General Counsel | May 11, 2026 | Sale | 3,260 | $207.02 | $674.9K | 10.2K | Form 4 ↗ |
Seetharam Soumya Senior Vice President & CDIO | May 11, 2026 | Sale | 20,000 | $206.23 | $4.12M | 25.6K | Form 4 ↗ |
Zhang John Z Exec. Vice President & CCDO | May 11, 2026 | Sale | 10,000 | $198.34 | $1.98M | 5.1K | Form 4 ↗ |
STEVERSON LEWIS A Vice Chairman, EVP and CLAO | May 8, 2026 | Sale | 27,750 | $196.06 | $5.44M | 28.2K | Form 4 ↗ |
Gullo Michelle L Senior Vice President & CHRO | May 8, 2026 | Sale | 5,315 | $189.03 | $1.00M | 37.6K | Form 4 ↗ |
Becker Stefan SVP, Finance & Corp Controller | May 8, 2026 | Sale | 21,000 | $188.08 | $3.95M | 7.3K | 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
Corning Incorporated (GLW) is primarily owned by institutional investors, who hold approximately 72.4% of total shares outstanding. Company insiders own approximately 8.24%, while retail and public investors account for the remaining 19.35%.
The largest institutional shareholder of Corning Incorporated is VANGUARD GROUP INC, holding approximately 96.37 million shares — equal to 11.27% of outstanding shares — as of March 31, 2025.
A total of 1,529 institutional investors currently hold GLW stock, with a combined institutional value of approximately $28.48 billion as of the most recent 13F filing period.
Frequently asked questions
GLW ownershipCorning Incorporated (GLW) is primarily owned by institutional investors, who hold approximately 72.4% of shares. The largest shareholder is VANGUARD GROUP INC with a 11.27% stake. Company insiders hold 8.24%. Data sourced from SEC Form 13F as of March 31, 2025.