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Zachary Sternberg

CIK 1679333 · last filed 2024-11-19

Zachary Sternberg is a corporate insider who has filed 25 SEC Form 4 insider transactions across 5 companies since 2017. The most recent filing, for CMPR, was dated Nov 19, 2024. Across all open-market trades the lifetime net is −$12.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.35B across reported positions. 53 SEC filings were submitted jointly with SPRUCE HOUSE INVESTMENT MANAGEMENT LLC.

"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

$6.35B

Companies

5

Total Filings

25

Lifetime Open-Market Net

-$12.82M

Filer Profile

Reported Address
435 HUDSON STREET
SUITE 804
NEW YORK, NY 10014
Formerly Known As
Sternberg Zach (2016–2017)
Related Filers
SPRUCE HOUSE INVESTMENT MANAGEMENT LLC — 53 joint filings, latest 2021-12-09
SPRUCE HOUSE PARTNERSHIP LP — 53 joint filings, latest 2021-12-09
Spruce House Capital LLC — 53 joint filings, latest 2021-12-09
Benjamin Forester Stein — 53 joint filings, latest 2021-12-09
Spruce House Partnership (QP) LP — 19 joint filings, latest 2021-12-09
Spruce House Partnership LLC — 19 joint filings, latest 2021-12-09
XPO Logistics, Inc. — 10 joint filings, latest 2020-05-08
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
CMPR Director 2,077,232 $80.11 $166.41M -$29.25M 12 2024-11-19
GTT Communications, Inc. (GTT) Delisted Director 12,701 $2.36 $30.0K $434.07M 9 2020-10-01
XPO 10%+ Owner 28,265,403 $174.25 $4.93B -$169.79M 1 2020-03-24
CIGI 10%+ Owner 5,725,143 $89.61 $513.03M -$84.61M 1 2020-03-24
W 10%+ Owner 7,250,000 $102.46 $742.84M -$163.24M 1 2020-03-23

Recent Filings

25 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
2024-11-19 CMPR Mixed +1,024 -$76.4K EDGAR
2024-03-05 CMPR Sell (S) −300,000 -$29.25M EDGAR
2023-12-18 CMPR Grant (A) — $0 EDGAR
2023-11-16 CMPR Mixed +768 -$49.0K EDGAR
2022-11-17 CMPR Mixed +182 -$4.7K EDGAR
2021-11-17 CMPR Grant (A) — $0 EDGAR
2021-09-02 — Other (J) −15,887,701 $0
2020-11-17 CMPR Grant (A) — $0 EDGAR
2020-10-01 GTT Communications, Inc. (GTT) Delisted Grant (A) +3,392 $17.5K EDGAR
2020-08-18 CMPR Mixed +556 -$49.1K EDGAR
Showing 1–10 of 25
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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.