LANGER JACK
Director · SBAC
As of 2026-09-16, LANGER JACK has 38 Form 4 transactions on record across 1 company — 17 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2025-05-01 | SBAC | Sale | 3,500 @ $240.17 | $841K | −22.5% of holding | 12,022 | Form 4 |
| 2025-05-01 | SBAC | Sale | 1,359 @ $241.50 | $328K | −11.3% of holding | 10,663 | Form 4 |
| 2025-05-01 | SBAC | Sale | 141 @ $242.12 | $34K | −1.3% of holding | 10,522 | Form 4 |
35 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-05-22 | SBAC | Award / grant | 1,108 | 1,108 | Form 4 |
| 2026-05-13 | SBAC | Withheld for tax | 1,496 | 8,704 | Form 4 |
| 2026-05-13 | SBAC | Option exercise | 1,501 | 10,200 | Form 4 |
| 2026-05-13 | SBAC | Option exercise | 1,501 | 0 | Form 4 |
| 2026-05-01 | SBAC | Withheld for tax | 326 | 8,699 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 331 | 9,025 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 248 | 8,392 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 331 | 663 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 302 | 302 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 331 | 9,025 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 302 | 8,694 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 248 | 8,392 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 248 | 0 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 331 | 663 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 302 | 302 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 248 | 0 | Form 4 |
| 2026-05-01 | SBAC | Option exercise | 302 | 8,694 | Form 4 |
| 2025-08-26 | SBAC | Gift | 30 | 8,138 | Form 4 |
| 2025-05-23 | SBAC | Award / grant | 994 | 994 | Form 4 |
| 2025-05-01 | SBAC | Withheld for tax | 268 | 8,168 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 302 | 8,436 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 248 | 8,134 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 175 | 7,886 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 302 | 604 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 248 | 248 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 175 | 0 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 302 | 8,436 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 175 | 7,886 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 248 | 8,134 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 302 | 604 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 248 | 248 | Form 4 |
| 2025-05-01 | SBAC | Option exercise | 175 | 0 | Form 4 |
| 2025-04-23 | SBAC | Withheld for tax | 1,119 | 7,711 | Form 4 |
| 2025-04-23 | SBAC | Option exercise | 1,411 | 8,830 | Form 4 |
| 2025-04-23 | SBAC | Option exercise | 1,411 | 0 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.