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Company profile

Data Storage Corp Insider Trading

DTST

Every SEC Form 4 insider trading filing for Data Storage Corp (DTST) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange
Nasdaq
Sector
Services-Computer Processing & Data Preparation
CIK
0001419951
Filings
146
Insiders
12
Last filing
2026-09-11
SEC EDGAR ↗Yahoo Finance ↗Finviz ↗Stock Analysis ↗

Activity summary

Recent insider activity is bullish. Over the last 30 days, 27 insiders purchased shares versus 4 sales. Buying was led by Nancy Stallone.

Three year balance

Buy and sell value by quarter, Q4 23 to Q3 26. Data Storage Corp insiders are net sellers across the period shown.

PurchasesSales
Q4 23Q1 24Q2 24Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25$16.0MQ1 26Q2 26Q3 26

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $16.0M.

90 day insight

Over the last 90 days, Data Storage Corp insiders bought $0 (27 transactions) and sold $40K (4 transactions).

  • Most active insider: Clifford Stein with 4 transactions totaling $12K.
  • Largest single sale: $12K by Clifford Stein on Sep 10, 2026.

Activity skews bullish — buys outpace sales.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValueReturn
Sep 11, 2026Thomas KempsterDTST
Sale
3,500$2.92$10K-1.0% 1d
Sep 11, 2026Uwayne A. MitchellDTST
Sale
3,000$2.95$9K-8.2% 1w
Sep 10, 2026John ArgenDTST
Sale
3,000$2.97$9K-8.2% 1w
Sep 10, 2026Clifford SteinDTST
Sale
3,991$3.05$12K-8.2% 1w
Sep 2, 2026Nancy StalloneDTST
Award
12,000——-1.0% 1w

45 more transactions hidden

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Top insiders

By total value filed.

Charles M. PilusoChairman and CEO3 filings−$333K
Uwayne A. MitchellDirector2 filings−$67K
Nancy StalloneTreasurer and Secretary1 filing−$58K
Clifford SteinDirector1 filing−$12K
Thomas KempsterEVP1 filing−$10K

Institutional Ownership

Top 13F-HR holders of Data Storage Corp as of 2026-06-30

— stable
Total reported AUM
$149,278
QoQ change
—
Reporting period
2026-06-30
#1
Angeles Wealth Management, LLC
CIK 0001929170
$148,695
43K shares
#2
SBI Securities Co., Ltd.
CIK 0001851815
$345
100 shares
#3
BlackRock, Inc.
CIK 0002012383
$238
69 shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

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Form4API, StockholmNot affiliated with the SEC or EDGAR. Data sourced from public EDGAR filings. Not investment advice.

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