Insider transactions

Alexander Mandel

CIK 1555382 · Chief Financial Officer · last filed 2026-05-21

Alexander Mandel is a Chief Financial Officer who has filed 18 SEC Form 4 insider transactions across 3 companies since 2012. The most recent filing, for SKLZ, was dated May 21, 2026. Across all open-market trades the lifetime net is −$558.8K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $334.2K 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
$334.2K
Companies
3
Total Filings
18
Lifetime Open-Market Net
-$558.8K

Charts

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

TREE price and trades

Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.

Shares held

Shares owned after each reported transaction on this company (direct holdings as reported).

Open-market buying and selling

by month

Dollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.

Exposure by company

latest
OfficerDirector10% owner* stale (no filing in 3 yrs)

Most recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.

Filer Profile

Reported Address
1061 MARKET STREET
6TH FLOOR
SAN FRANCISCO, CA 94103
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
Skillz Inc. (SKLZ) Delisted Director 21,201 $8.84 $187.4K $0 5 2026-05-21
FLNT Chief Financial Officer 13,919 $2.75 $38.3K $35.7K 3 2021-02-03
TREE Chief Financial Officer 11,274 $26.25 $295.9K -$594.6K 10 2015-03-12

Recent Filings

18 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
2026-05-21 Skillz Inc. (SKLZ) Delisted Exer (M) +7,067 $0 EDGAR
2025-12-23 Skillz Inc. (SKLZ) Delisted Exer (M) +7,067 $0 EDGAR
2024-01-23 Skillz Inc. (SKLZ) Delisted — — $0 EDGAR
2024-01-23 Skillz Inc. (SKLZ) Delisted Exer (M) +7,067 $0 EDGAR
2023-03-08 Skillz Inc. (SKLZ) Delisted Grant (A) — $0 EDGAR
2021-02-03 FLNT Tax (F) −27,290 -$156.4K EDGAR
2019-12-17 FLNT Buy (P) +17,056 $35.7K EDGAR
2019-02-05 FLNT Grant (A) +250,000 $0 EDGAR
2015-03-12 TREE Mixed +769 -$24.7K EDGAR
2015-02-20 TREE Mixed +769 -$24.7K EDGAR
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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.