WILLIAM G BOCK
CIK 1197848 · President · last filed 2026-06-05
"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
$10.37M
Companies
7
Total Filings
159
Lifetime Open-Market Net
-$26.14M
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 |
|---|---|---|---|---|---|---|---|
| SAIL | Director | 126,627 | $19.06 | $2.41M | -$1.77M | 24 | 2026-06-05 |
| NABL | Director | 168,006 | $3.15 | $529.2K | $0 | 6 | 2026-06-01 |
| SLAB | Director | 33,920 | $218.94 | $7.43M | -$24.16M | 108 | 2026-04-24 |
| SolarWinds Corp (SWI) Delisted | Director | 0 | $18.49 | $0 | -$210.1K | 10 | 2025-04-17 |
| Borderfree, Inc. (BRDR) Delisted | Director | 0 | — | — | $0 | 1 | 2015-06-10 |
| ENTROPIC COMMUNICATIONS INC (ENTR) Delisted | Director | 27,850 | $15.31 | $426.4K | $0 | 3 | 2015-04-21 |
| Convio, Inc. (CNVO) Delisted | Director | 3,485 | — | — | $0 | 3 | 2012-05-08 |
Recent Filings · Page 13 of 16
159 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 |
|---|---|---|---|---|---|
| 2013-05-15 | ENTROPIC COMMUNICATIONS INC (ENTR) Delisted | Grant (A) | — | $0 | EDGAR |
| 2013-04-17 | SLAB | Tax (F) | −397 | -$16.7K | EDGAR |
| 2013-03-19 | SLAB | Grant (A) | +17,459 | $0 | EDGAR |
| 2013-02-20 | SLAB | Mixed | −8,451 | -$368.3K | EDGAR |
| 2012-11-19 | SLAB | Sell (S) | −3,875 | -$155.0K | EDGAR |
| 2012-10-01 | ENTROPIC COMMUNICATIONS INC (ENTR) Delisted | Grant (A) | — | $0 | EDGAR |
| 2012-08-21 | SLAB | Sell (S) | −8,000 | -$320.0K | EDGAR |
| 2012-05-08 | Convio, Inc. (CNVO) Delisted | Mixed | — | -$55.8K | EDGAR |
| 2012-02-17 | SLAB | Tax (F) | −9,130 | -$411.3K | EDGAR |
| 2011-11-17 | SLAB | Sell (S) | −9,533 | -$402.3K | 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.