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WILLIAM M III DIEFENDERFER

CIK 1086476 · last filed 2019-02-07

WILLIAM M III DIEFENDERFER is a corporate insider who has filed 83 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing, for NAVI, was dated Feb 7, 2019. Across all open-market trades the lifetime net is −$852.6K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $20.2M across reported positions.

"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

$20.20M

Companies

5

Total Filings

83

Lifetime Open-Market Net

-$852.6K

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
NAVI Director 106,236 $9.28 $985.9K -$559.6K 7 2019-02-07
CUBE Director 146,673 $39.73 $5.83M -$80.7K 32 2018-04-16
NAVIENT CORP (OSM) Delisted Director — — — $0 1 2017-02-07
SLMBP Director 94,286 $74.83 $7.06M -$212.4K 5 2013-02-11
SLM Director 245,527 $25.77 $6.33M $0 6 2011-01-31

Recent Filings

83 filings
Insider 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
2019-02-07 NAVI Grant (A) — $0 EDGAR
2018-04-16 CUBE Grant (A) +66 $1.9K EDGAR
2018-02-06 NAVI Grant (A) — $0 EDGAR
2018-01-16 CUBE Grant (A) +67 $1.8K EDGAR
2017-10-16 CUBE Grant (A) +62 $1.6K EDGAR
2017-07-17 CUBE Grant (A) +67 $1.6K EDGAR
2017-06-02 CUBE Grant (A) +3,132 $0 EDGAR
2017-04-17 CUBE Grant (A) +57 $1.6K EDGAR
2017-02-07 NAVIENT CORP (OSM) Delisted Grant (A) — $0 EDGAR
2017-01-17 CUBE Grant (A) +62 $1.6K EDGAR
Showing 1–10 of 83
Page 1 of 9
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.