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Public ownership evidence

Data Storage Corporation Common Stock (DTST) Ownership Disclosures

Read DTST insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-09-152026-09-11Kempster ThomasS3,500Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-11 and its public availability date is 2026-09-15. Subtracting those calendar dates gives 4 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001731122-26-001242 ↗SEC 0001731122-26-001231 ↗SEC 0001731122-26-001230 ↗

Recent Form 4 activity

Inspect all 13 displayed rows: Recent Form 4 activity

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2026-09-152026-09-11Kempster ThomasS3,500Not reported
2026-09-122026-09-10Argen JohnS3,000Not reported
2026-09-122026-09-10Stein CliffordS3,991Not reported
2026-09-122026-09-11Mitchell Uwayne A.S3,000Not reported
2026-09-052026-09-02Correll Todd A.A12,000Not reported
2026-09-052026-09-02Schwartz Harold JA12,000Not reported
2026-09-052026-09-02Stein CliffordA12,000Not reported
2026-09-052026-09-02Stallone NancyA12,000Not reported
2026-09-052026-09-02Mitchell Uwayne A.A12,000Not reported
2026-09-052026-09-02Maglione Lawrence A.A12,000Not reported
2026-09-052026-09-02Kempster ThomasA12,000Not reported
2026-09-052026-09-02Grover MatthewA12,000Not reported
2026-09-052026-09-02Argen JohnA12,000Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 15 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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OSAIC HOLDINGS, INC.2026-06-302026-08-15300$1,035None
HRT FINANCIAL LP2026-06-302026-08-1510,901$37,000None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-1512,689$43,777None
ROYAL BANK OF CANADA2026-06-302026-08-151,379$5,000None
CITADEL ADVISORS LLC2026-06-302026-08-1523,624$81,503None
BARCLAYS PLC2026-06-302026-08-155$17None
VANGUARD CAPITAL MANAGEMENT LLC2026-06-302026-08-148,165$28,169None
UBS Group AG2026-06-302026-08-145,279$18,213None
VANGUARD FIDUCIARY TRUST CO2026-06-302026-08-144,834$16,677None
FMR LLC2026-06-302026-08-140$1None
Focus Partners Wealth2026-06-302026-08-1317,829$61,510None
GEODE CAPITAL MANAGEMENT, LLC2026-06-302026-08-13743$2,563None
GEODE CAPITAL MANAGEMENT, LLC2026-06-302026-08-1318,199$62,819None
BESSEMER GROUP INC2026-06-302026-08-13150$1,000None
Tower Research Capital LLC (TRC)2026-06-302026-08-123$10None

90-day public filing window, up to 50 source positions.

OSAIC HOLDINGS, INC. ↗HRT FINANCIAL LP ↗MILLENNIUM MANAGEMENT LLC ↗ROYAL BANK OF CANADA ↗CITADEL ADVISORS LLC ↗BARCLAYS PLC ↗VANGUARD CAPITAL MANAGEMENT LLC ↗UBS Group AG ↗VANGUARD FIDUCIARY TRUST CO ↗FMR LLC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.