Insider transactions

Matthew B Salzberg

CIK 1710351 · President, CEO and Chairman · last filed 2026-09-14

Matthew B Salzberg is a President, CEO and Chairman who has filed 19 SEC Form 4 insider transactions across 2 companies since 2019. The most recent filing, for SSTK, was dated Sep 14, 2026. Across all open-market trades the lifetime net is −$4.1M, making them a net seller over the disclosed history.

"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
$0
Companies
2
Total Filings
19
Lifetime Open-Market Net
-$4.13M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

Filer Profile

Reported Address
5 CROSBY STREET
NEW YORK, NY 10013
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
SSTK Director — $4.01 — $0 1 2026-09-14
Blue Apron Holdings, Inc. (APRN) Delisted Director 135,133 $12.99 $1.76M -$4.13M 13 2021-12-09

Recent Filings

19 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
2026-09-14 SSTK Grant (A) — $0 EDGAR
2021-12-09 Blue Apron Holdings, Inc. (APRN) Delisted Sell (S) −76,184 -$882.2K EDGAR
2021-12-07 Blue Apron Holdings, Inc. (APRN) Delisted Sell (S) −190,000 -$2.22M EDGAR
2021-09-17 Blue Apron Holdings, Inc. (APRN) Delisted Mixed +3,273,655 $0 EDGAR
2021-07-06 Blue Apron Holdings, Inc. (APRN) Delisted Exer (M) +4,167 $0 EDGAR
2021-06-15 Blue Apron Holdings, Inc. (APRN) Delisted Mixed +8,334 $0 EDGAR
2021-02-16 Blue Apron Holdings, Inc. (APRN) Delisted Conv (C) +100,000 $0 EDGAR
2021-01-27 Blue Apron Holdings, Inc. (APRN) Delisted Sell (S) −100,000 -$1.03M EDGAR
2020-10-14 Blue Apron Holdings, Inc. (APRN) Delisted Conv (C) +100,000 $0 EDGAR
2020-07-07 Blue Apron Holdings, Inc. (APRN) Delisted Exer (M) +4,167 $0 EDGAR
Showing 1–10 of 19
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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.