STEVEN R ALTMAN
CIK 1191307 · Vice Chairman · last filed 2026-06-01
"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
$14.89M
Companies
4
Total Filings
194
Lifetime Open-Market Net
-$307.60M
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 |
|---|---|---|---|---|---|---|---|
| DXCM | Director | 69,232 | $91.48 | $6.33M | -$17.38M | 37 | 2026-06-01 |
| Ubiquiti Inc. (UBNT) Delisted | Director | 82,920 | — | — | $1.14M | 3 | 2014-02-12 |
| QCOM | Vice Chairman | 51,945 | $164.79 | $8.56M | -$291.36M | 134 | 2014-01-03 |
| AMYLIN PHARMACEUTICALS INC (AMLN) Delisted | Director | — | — | — | $0 | 18 | 2010-04-07 |
Recent Filings · Page 4 of 20
194 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 |
|---|---|---|---|---|---|
| 2018-06-04 | DXCM | Grant (A) | +3,457 | $3 | EDGAR |
| 2017-11-09 | DXCM | Buy (P) | +25,000 | $1.25M | EDGAR |
| 2017-11-08 | DXCM | Buy (P) | +10,000 | $496.1K | EDGAR |
| 2017-06-05 | DXCM | Grant (A) | +4,353 | $4 | EDGAR |
| 2016-08-23 | DXCM | Sell (S) | −3,500 | -$318.2K | EDGAR |
| 2016-05-26 | DXCM | Grant (A) | +4,791 | $5 | EDGAR |
| 2015-08-19 | DXCM | Sell (S) | −5,000 | -$483.5K | EDGAR |
| 2015-06-05 | DXCM | Grant (A) | +4,279 | $4 | EDGAR |
| 2014-02-12 | Ubiquiti Inc. (UBNT) Delisted | Grant (A) | +20,000 | $0 | EDGAR |
| 2014-01-03 | QCOM | Mixed | −10,000 | $0 | 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.