Stefan Becker
CIK 1825967 · SVP, Finance & Corp Controller · last filed 2026-05-14
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$894.3K
Companies
1
Total Filings
40
Lifetime Open-Market Net
-$9.08M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| GLW | SVP, Finance & Corp Controller | 7,137 | $125.31 | $894.3K | -$9.08M | 35 | 2026-05-14 |
Recent Filings · Page 2 of 4
40 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-08-12 | GLW | Mixed | +1,032 | -$70.9K | EDGAR |
| 2025-05-29 | GLW | Notice (144) | −17,106 | -$849.8K | EDGAR |
| 2025-05-29 | GLW | Sell (S) | −17,106 | -$849.8K | EDGAR |
| 2025-04-17 | GLW | Mixed | +16,101 | -$701.7K | EDGAR |
| 2025-04-03 | GLW | Grant (A) | — | $0 | EDGAR |
| 2025-02-12 | GLW | Mixed | +1,348 | -$40.4K | EDGAR |
| 2025-02-06 | GLW | Grant (A) | — | $0 | EDGAR |
| 2024-12-11 | GLW | Sell (S) | −17,938 | -$708.7K | EDGAR |
| 2024-11-01 | GLW | Mixed | −11,008 | -$787.7K | EDGAR |
| 2024-10-30 | GLW | Notice (144) | −24,077 | -$1.18M | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.