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CS

Clifford Stein

Insider · Director · DTST

Clifford Stein files insider transactions with the SEC as a director of Data Storage. We hold 1 disclosed purchase or sale filed since 15 February 2012, 1 of them in the last 90 days.

  • Files forDTST
  • Disclosed buys and sells1 in all, 1 in the last 90 days
  • Last disclosure11 September 2026

Positions held

1 post we hold — a term names its own dates; a run of filings only says when they filed
  • Filed 21 December 2011 — 10 September 2026Director · Data Storage 25 Form 4 lines · source: SEC Form 4

Every transaction

25 transactions from SEC Form 4 — one row each, sort any column, open a row for the filing
25 of 25 shown
10 Sep 202611 Sep 2026SEC Form 41 dsold on the open marketData Storage3,991 sharesup +1.7%up +0.0%
2 Sep 20264 Sep 2026SEC Form 42 dexercised options overnot a tradeData Storage10,000 sharesup +2.7%up +2.7%
2 Sep 20264 Sep 2026SEC Form 42 dwas grantednot a tradeData Storage12,000 sharesup +2.7%up +2.7%
2 Sep 20264 Sep 2026SEC Form 42 dexercised options overnot a tradeData Storagederivative10,000 sharesup +2.7%up +2.7%
29 Jan 20262 Feb 2026SEC Form 44 dwas grantednot a tradeData Storagederivative10,000 sharesdown −26.9%down −35.5%
29 Jan 20262 Feb 2026SEC Form 44 dwas grantednot a tradeData Storagederivative10,000 sharesdown −26.9%down −35.5%
14 Jan 202616 Jan 2026SEC Form 42 dreturned to the issuernot a tradeData Storage280,850 sharesdown −31.7%down −32.0%
14 Jan 202616 Jan 2026SEC Form 42 dreturned to the issuernot a tradeData Storage280,850 sharesdown −31.7%down −32.0%
2 Jun 202511 Jun 2025SEC Form 49 dwas grantednot a tradeData Storage7,915 sharesdown −19.8%down −15.6%
30 Jun 20242 Jul 2024SEC Form 42 dwas grantednot a tradeData Storagederivative2,500 sharesdown −53.7%down −53.8%
30 Jun 20242 Jul 2024SEC Form 42 dwas grantednot a tradeData Storage2,500 sharesdown −53.7%down −53.8%
31 Mar 20243 Apr 2024SEC Form 43 dwas grantednot a tradeData Storagederivative2,500 sharesdown −46.9%down −49.6%
31 Mar 20243 Apr 2024SEC Form 43 dwas grantednot a tradeData Storage2,500 sharesdown −46.9%down −49.6%
11 Dec 201914 Feb 2020SEC Form 465 dwas grantednot a tradeData Storagederivative100,000 sharesup +2238.5%up +2238.5%
14 Dec 201719 Feb 2020SEC Form 4797 dwas grantednot a tradeData Storagederivative66,666 sharesup +3700.0%up +2071.4%
22 Dec 201519 Feb 2020SEC Form 41520 dwas grantednot a tradeData Storagederivative66,666 sharesup +10033.3%up +2071.4%
13 Dec 201319 Feb 2020SEC Form 42259 dwas grantednot a tradeData Storagederivative33,333 sharesup +3277.8%up +2071.4%
11 Dec 201219 Feb 2020SEC Form 42626 dwas grantednot a tradeData Storagederivative33,333 sharesup +5980.0%up +2071.4%
10 Sep 201211 Sep 2012SEC Form 41 dbought on the open marketData Storage833,333 sharesup +1926.7%up +1926.7%
21 Dec 201115 Feb 2012SEC Form 456 dconvertednot a tradeData Storagederivative986,194 shares——
21 Dec 201115 Feb 2012SEC Form 456 dconvertednot a tradeData Storagederivative1,138,319 shares——
21 Dec 201115 Feb 2012SEC Form 456 dconvertednot a tradeData Storage986,194 shares——
21 Dec 201115 Feb 2012SEC Form 456 dacquired or disposed of, othernot a tradeData Storage70,357 shares——
21 Dec 201115 Feb 2012SEC Form 456 dacquired or disposed of, othernot a tradeData Storage90,498 shares——
21 Dec 201115 Feb 2012SEC Form 456 dconvertednot a tradeData Storage1,138,319 shares——

Both percentages are the stock’s move, not Clifford Stein’s return: a disclosure gives a band, never an amount, so nobody can say how much was bought or what it made. They run to the last close we hold — 11 Sep 2026, except where a name has since delisted, when the row names its own last session. We publish no close, no volume and no dollar figure behind them. 19 of the 25 rows shown carry a percentage; the rest are dashes with the reason on the row.

Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.

Some filings reach us as photographs of paper rather than as a form we can read as text. Those are shown here only once they have been read and checked, so this page can hold fewer lines than the filings behind it contain. The link on every row opens the original document, which is always the full record.