Michelle L Gullo
CIK 2096996 · View on SEC EDGAR ↗
Insider
First SEC filing: Nov. 24, 2025 · Latest: May 8, 2026
On this page
Insider at
Insider transactions
0 buys (P)
4 sells (S)
Net:
$-1,092,139
+ 26 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
26 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 8, 2026 | GLW | S | 5,315 | $189.03 | $1,004,694 | 37,636 Direct | -12.37% | Disposed | -18.8% (price as of 2026-08-21) |
| Feb. 13, 2026 | GLW | S | 587 | $131.11 | $76,962 | 36,000 Direct | -1.60% | Disposed | 17.1% (price as of 2026-08-21) |
| Feb. 12, 2026 | GLW | S | 44 | $135.83 | $5,977 | 0 Indirect | -100.00% | Disposed | 13.1% (price as of 2026-08-21) |
| Jan. 29, 2026 | GLW | S | 44 | $102.40 | $4,506 | 0 Indirect | -100.00% | Disposed | 50.0% (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| April 15, 2026 | GLW | Restricted Stock Unit | Common Stock (3,793) | — | — | 3,793 | Disposed |
| April 15, 2026 | GLW | Performance Share Unit | Common Stock (9,356) | — | — | 9,356 | Disposed |
| April 1, 2026 | GLW | Restricted Stock Unit | Common Stock (2,845) | — | — | 2,845 | Acquired |
| Feb. 9, 2026 | GLW | Restricted Stock Unit | Common Stock (76) | — | — | 76 | Disposed |
| Feb. 9, 2026 | GLW | Restricted Stock Unit | Common Stock (918) | — | — | 918 | Disposed |
| Feb. 4, 2026 | GLW | Performance Share Unit | Common Stock (169) | — | — | 169 | Disposed |
| Feb. 4, 2026 | GLW | Performance Share Unit | Common Stock (119) | — | — | 119 | Disposed |
| Feb. 4, 2026 | GLW | Performance Share Unit | Common Stock (98) | — | — | 98 | Disposed |
| Feb. 4, 2026 | GLW | Performance Share Unit | Common Stock (4,759) | — | — | 4,759 | Acquired |
| Feb. 4, 2026 | GLW | Performance Share Unit | Common Stock (3,340) | — | — | 3,340 | Acquired |
| Feb. 4, 2026 | GLW | Performance Share Unit | Common Stock (2,740) | — | — | 2,740 | Acquired |
| Jan. 2, 2026 | GLW | Restricted Stock Unit | Common Stock (283) | — | — | 283 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 9 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Nov. 24, 2025 | GLW | Common Stock | 36,000 | Direct |
| Nov. 24, 2025 | GLW | Common Stock - Held by Spouse | 44 | Indirect |
| Nov. 24, 2025 | GLW | Restricted Stock Unit→ Common Stock (918) | 918 | Direct |
| Nov. 24, 2025 | GLW | Restricted Stock Unit→ Common Stock (76) | 76 | Indirect |
| Nov. 24, 2025 | GLW | Performance Share Unit→ Common Stock (4,766) | 4,766 | Direct |
| Nov. 24, 2025 | GLW | Performance Share Unit→ Common Stock (4,183) | 4,183 | Direct |
| Nov. 24, 2025 | GLW | Restricted Stock Unit→ Common Stock (4,378) | 4,378 | Direct |
| Nov. 24, 2025 | GLW | Restricted Stock Unit→ Common Stock (3,953) | 3,953 | Direct |
| Nov. 24, 2025 | GLW | Restricted Stock Unit→ Common Stock (3,793) | 3,793 | Direct |