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Public ownership evidence

MacroGenics, Inc. (MGNX) Ownership Disclosures

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

As of 2026-10-14T23:32:50.005Z

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2026-08-212026-08-19Peters Jeffrey StuartS31,105Not reported

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

The displayed observation date is 2026-08-19 and its public availability date is 2026-08-21. Subtracting those calendar dates gives 2 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 0001706903-26-000006 ↗13F 0001948780-26-000011 ↗13F 0001081019-26-000020 ↗

Recent Form 4 activity

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2026-08-212026-08-19Peters Jeffrey StuartS31,105Not reported

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

Recent institutional filing receipts

Inspect all 50 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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Corient Private Wealth LP2026-06-302026-08-2830,000$138,600None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25865$3,996None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-253,996$865,000None
Corient Private Wealth LP2026-06-302026-08-1831,611$146,043None
Graham Capital Management, L.P.2026-06-302026-08-1547,456$219,247None
SEI INVESTMENTS CO2026-06-302026-08-15164,704$760,932None
Marex Group Ltd2026-06-302026-08-1550,000$231,000None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-1596,686$446,689None
Quarry LP2026-06-302026-08-15143$661None
ADAR1 Capital Management, LLC2026-06-302026-08-15129,822$599,778None
DIADEMA PARTNERS LP2026-06-302026-08-15374,403$1,729,742None
Velan Capital Investment Management LP2026-06-302026-08-1560,000$277,200None
XTX Topco Ltd2026-06-302026-08-1576,059$351,393None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15192,635$889,974None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15192,635$889,974None
OSAIC HOLDINGS, INC.2026-06-302026-08-155,265$24,322None
Squarepoint Ops LLC2026-06-302026-08-15117,378$542,286None
Man Group plc2026-06-302026-08-15188,189$869,433None
MetLife Investment Management, LLC2026-06-302026-08-1537,344$172,529None
JANE STREET GROUP, LLC2026-06-302026-08-1583,862$387,442None
BOOTHBAY FUND MANAGEMENT, LLC2026-06-302026-08-1518,334$84,703None
Legal & General Group Plc2026-06-302026-08-156,100$28,182None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1523,200$107,184Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1517,700$81,774Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1553,619$247,720None
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC2026-06-302026-08-1529,901$138,143None
Ikarian Capital, LLC2026-06-302026-08-1574,893$346,006None
Verdad Advisers, LP2026-06-302026-08-1514,431$66,671None
ARMISTICE CAPITAL, LLC2026-06-302026-08-155,006,752$23,131,194None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-152,374,296$10,969,248None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-1530$144None
Evercore Wealth Management, LLC2026-06-302026-08-1517,543$81,049None
Cresset Asset Management, LLC2026-06-302026-08-1525,828$119,325None
MANUFACTURERS LIFE INSURANCE COMPANY, THE2026-06-302026-08-1517,681$81,686None
ROYAL BANK OF CANADA2026-06-302026-08-15145,000$670,000None
ROYAL BANK OF CANADA2026-06-302026-08-152,056$9,000None
ALLIANCEBERNSTEIN L.P.2026-06-302026-08-1515,780$45,604None
BRIDGEWAY CAPITAL MANAGEMENT, LLC2026-06-302026-08-1573,500$339,570None
CANADA PENSION PLAN INVESTMENT BOARD2026-06-302026-08-1537,000$170,940None
RA CAPITAL MANAGEMENT, L.P.2026-06-302026-08-151,864,176$8,612,493None
D. E. Shaw & Co., Inc.2026-06-302026-08-15127,247$587,881None
D. E. Shaw & Co., Inc.2026-06-302026-08-15935,744$4,323,137None
CITADEL ADVISORS LLC2026-06-302026-08-1510,600$48,972Put
CITADEL ADVISORS LLC2026-06-302026-08-1577,860$359,713None
CITADEL ADVISORS LLC2026-06-302026-08-1527,400$126,588Call
CITADEL ADVISORS LLC2026-06-302026-08-15101,973$471,115None
PRELUDE CAPITAL MANAGEMENT, LLC2026-06-302026-08-1526,300$121,506None
GROUP ONE TRADING LLC2026-06-302026-08-152,663$12,303None
Invesco Ltd.2026-06-302026-08-1568,934$318,475None
Invesco Ltd.2026-06-302026-08-15112$517None

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

Corient Private Wealth LP ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Corient Private Wealth LP ↗Graham Capital Management, L.P. ↗SEI INVESTMENTS CO ↗Marex Group Ltd ↗Susquehanna Portfolio Strategies, LLC ↗Quarry LP ↗ADAR1 Capital Management, 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.