William N Springer
CIK 1799963 · President · last filed 2026-07-02
"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
$4.08M
Companies
1
Total Filings
31
Lifetime Open-Market Net
-$642.8K
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 |
|---|---|---|---|---|---|---|---|
| EXR | President | 27,794 | $146.66 | $4.08M | -$642.8K | 29 | 2026-07-02 |
Recent Filings · Page 2 of 4
31 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 |
|---|---|---|---|---|---|
| 2024-07-03 | EXR | Tax (F) | −139 | -$21.1K | EDGAR |
| 2024-03-18 | EXR | Gift (G) | −100 | $0 | EDGAR |
| 2024-03-05 | EXR | Mixed | +5,408 | $775.3K | EDGAR |
| 2024-02-20 | EXR | Tax (F) | −63 | -$8.9K | EDGAR |
| 2024-02-14 | EXR | Tax (F) | −51 | -$7.2K | EDGAR |
| 2023-07-05 | EXR | Tax (F) | −139 | -$20.7K | EDGAR |
| 2023-04-04 | EXR | Tax (F) | −97 | -$15.8K | EDGAR |
| 2023-03-03 | EXR | Mixed | +3,114 | $509.5K | EDGAR |
| 2023-02-23 | EXR | Tax (F) | −55 | -$8.7K | EDGAR |
| 2023-02-17 | EXR | Grant (A) | +1,191 | $193.2K | 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.