JACK LANGER
CIK 1253093 · last filed 2026-05-27
"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
$3.55M
Companies
2
Total Filings
76
Lifetime Open-Market Net
-$5.30M
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 |
|---|---|---|---|---|---|---|---|
| SBAC | Director | 19,335 | $183.42 | $3.55M | -$5.30M | 56 | 2026-05-27 |
| CKX, Inc. (CKXE) Delisted | Director | 0 | — | — | $0 | 19 | 2011-06-20 |
Recent Filings · Page 5 of 8
76 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 |
|---|---|---|---|---|---|
| 2015-05-26 | SBAC | Grant (A) | — | $0 | EDGAR |
| 2015-05-19 | SBAC | Exer (M) | +483 | $0 | EDGAR |
| 2015-05-12 | SBAC | Exer (M) | +649 | $0 | EDGAR |
| 2013-05-10 | SBAC | Mixed | +483 | $0 | EDGAR |
| 2013-05-07 | SBAC | Exer (M) | +1,237 | $0 | EDGAR |
| 2012-12-06 | SBAC | Mixed | −10,150 | -$687.5K | EDGAR |
| 2012-11-16 | SBAC | Mixed | +37,669 | -$1.05M | EDGAR |
| 2012-05-21 | SBAC | Grant (A) | — | $0 | EDGAR |
| 2012-05-08 | SBAC | Exer (M) | +1,237 | $0 | EDGAR |
| 2011-08-09 | SBAC | Buy (P) | +500 | $16.6K | 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.