SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
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Company profile

MGNX

Macrogenics Inc.
NASDAQHealth Care

Latest close: 3.25 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Sep 21, 2026Notice of sale · Form 144Thomas Spitznagel · Former Officer · $65.5KOpen the filing ↗
  2. Sep 3, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  3. Aug 19, 2026Reported sale · Form 4Jeffrey Stuart Peters, Senior VP, GC, and Secretary · $129.1KOpen the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record89315 flagged findings
Reported transactions (Form 4)80since Feb 7, 2026 · and 12 other holdings
Corporate events (8-K)30since Oct 27, 2017

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 893)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Oct 7, 26Form 4 ↗Insider transaction
  • Sep 21, 26Form 144 ↗Notice of proposed sale
  • Sep 3, 268-K/A ↗Current report · Financial statements and exhibits · amendment
  • Aug 20, 26Form 4 ↗Insider transaction
  • Aug 19, 26Form 144 ↗Notice of proposed sale
  • Aug 18, 26Form 4 ↗Insider transaction
  • Aug 17, 26Form 144 ↗Notice of proposed sale
  • Aug 14, 26SCHEDULE 13G/A ↗Passive stake · Armistice Capital, LLC · 7.9% · event on Jun 30, 26 · amendment
  • Aug 14, 2610-Q ↗Quarterly report
  • Aug 13, 268-K ↗Current report · Results
  • Aug 3, 26Form 144 ↗Notice of proposed sale
  • Aug 3, 26SCHEDULE 13G/A ↗Passive stake · BANK OF AMERICA CORP /DE/ · 4.0% · event on Jun 30, 26 · amendment
  • Jul 29, 26SCHEDULE 13G ↗Passive stake · BlackRock, Inc. · 7.1% · event on Jun 30, 26
  • Jul 23, 268-K ↗Current report · Other events
  • Jul 20, 26SCHEDULE 13G/A ↗Passive stake · Millennium Management LLC · 3.7% · event on Jun 30, 26 · amendment
  • Jul 13, 26Form 144 ↗Notice of proposed sale
  • Jul 8, 268-K ↗Current report · A senior executive left or was appointed
  • Jul 7, 268-K ↗Current report · Completed an acquisition or disposal
  • Jun 5, 26SCHEDULE 13G ↗Passive stake · Millennium Management LLC · 5.4% · event on Jun 1, 26
  • Insider transaction · 6 Form 4 filingsshow all 6hide

893 filings on record, the oldest from Aug 28, 13.

Listing the 25 most recent filings of the 893 on record.

8-Ks, explained

Structure24Governance20
  • Jul 8, 26GovernanceA senior executive left or was appointed8-K 5.02 ↗
  • Jul 7, 26StructureCompleted an acquisition or disposal+2 more in the same filing8-K 2.01 ↗
  • May 12, 26StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • May 4, 26StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • Nov 20, 25GovernanceA senior executive left or was appointed8-K 5.02 ↗
  • Aug 13, 25GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Jun 10, 25StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • Governance3 senior executive changes2024 – 2025show all 3hide
    • Feb 26, 25GovernanceA senior executive left or was appointed8-K 5.02 ↗
    • Nov 21, 24GovernanceA senior executive left or was appointed8-K 5.02 ↗
    • Oct 30, 24GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Sep 22, 23StructureA material agreement was terminated8-K 1.02 ↗
  • Mar 9, 23StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • Jan 5, 23GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Dec 21, 22GovernanceA senior executive left or was appointed8-K 5.02 ↗

15 older filings not shown · The record reaches back to Mar 7, 14.

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

  • Armistice Capital, LLC7.9%Jun 30, 26SCHEDULE 13G/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum. · 2 earlier filings
  • BlackRock, Inc.7.1%Jun 30, 26SCHEDULE 13G ↗1 earlier filing
  • BANK OF AMERICA CORP /DE/4.0%Jun 30, 26SCHEDULE 13G/A ↗1 earlier filing
  • Millennium Management LLC3.7%Jun 30, 26SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum. · 2 earlier filings
  • Wasatch Advisors LP3.1%Sep 30, 25SCHEDULE 13G/A ↗
show one more holderhide
  • Frazier Life Sciences Public Fund, L.P.2.5%Jun 30, 25SCHEDULE 13G/A ↗17 co-filers on this document — the figure is the largest single stake, not their sum.

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

Sale intention announced

On Sep 21, Thomas Spitznagel filed notice of intent to sell up to $66K. That is about 0.02% of shares outstanding.

A notice is not a sale: it may not go ahead, may happen in part, or at a different price.

No sale of theirs is on record yet in Form 4; the 90-day window is still open.

View notice (Form 144) ↗+4 more recent notices · 1 with a later sale

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • Aug 19, 26Sell$129KJeffrey Stuart PetersSenior VP, GC, and Secretary↗
Stock compensation, tax and giftsshow the 39 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Oct 6, 26Compensation$21KEzio BonviniSr VP, Research & CSO↗
  • Aug 17, 26Compensation$104KEzio BonviniSr VP, Research & CSO↗
  • May 18, 26Compensationamount n/aFederica F. O'Brien↗
  • May 18, 26Compensationamount n/aDAVID C STUMP↗
  • May 18, 26Compensationamount n/aEDWARD HURWITZ↗
  • May 18, 26Compensationamount n/aWILLIAM K HEIDEN↗
  • May 18, 26Compensationamount n/aMargaret Liu↗
  • May 18, 26Compensationamount n/aMeenu Chhabra↗
  • May 18, 26Compensationamount n/aScott Thomas Jackson↗
  • May 18, 26Compensationamount n/aKaren Jean Ferrante↗
  • May 18, 26Compensationamount n/aJAY PHILIP SIEGEL↗
  • Feb 15, 26Compensationamount n/aJames KarrelsSVP and CFO↗
  • Feb 15, 26Tax$10KJames KarrelsSVP and CFO↗
  • Feb 15, 26Compensationamount n/aScott Koenig↗
  • Feb 15, 26Compensationamount n/aEric Blasius RisserPresident and CEO↗
  • Feb 15, 26Tax$11KEric Blasius RisserPresident and CEO↗
  • Feb 15, 26Compensationamount n/aEzio BonviniSr VP, Research & CSO↗
  • Feb 15, 26Tax$11KEzio BonviniSr VP, Research & CSO↗
  • Feb 15, 26Compensationamount n/aThomas SpitznagelSr VP, Technical Ops↗
  • Feb 15, 26Tax$9KThomas SpitznagelSr VP, Technical Ops↗
  • Feb 15, 26Compensationamount n/aJeffrey Stuart PetersSenior VP, GC, and Secretary↗
  • Feb 15, 26Tax$9KJeffrey Stuart PetersSenior VP, GC, and Secretary↗
  • Feb 15, 26Compensationamount n/aBeth Ann SmithVP, Controller & Treasurer↗
  • Feb 15, 26Tax$723Beth Ann SmithVP, Controller & Treasurer↗
  • Feb 8, 26Compensationamount n/aJames KarrelsSVP and CFO↗
  • Feb 8, 26Tax$7KJames KarrelsSVP and CFO↗
  • Feb 8, 26Compensationamount n/aScott Koenig↗
  • Feb 8, 26Compensationamount n/aEric Blasius RisserPresident and CEO↗
  • Feb 8, 26Tax$8KEric Blasius RisserPresident and CEO↗
  • Feb 8, 26Compensationamount n/aEzio BonviniSr VP, Research & CSO↗
  • Feb 8, 26Tax$8KEzio BonviniSr VP, Research & CSO↗
  • Feb 8, 26Compensationamount n/aThomas SpitznagelSr VP, Technical Ops↗
  • Feb 8, 26Tax$6KThomas SpitznagelSr VP, Technical Ops↗
  • Feb 8, 26Compensationamount n/aJeffrey Stuart PetersSenior VP, GC, and Secretary↗
  • Feb 8, 26Tax$6KJeffrey Stuart PetersSenior VP, GC, and Secretary↗
  • Feb 8, 26Compensationamount n/aBeth Ann SmithVP, Controller & Treasurer↗
  • Feb 8, 26Tax$1KBeth Ann SmithVP, Controller & Treasurer↗
  • Feb 7, 26Compensationamount n/aJames KarrelsSVP and CFO↗
  • Feb 7, 26Tax$4KJames KarrelsSVP and CFO↗

The full record holds 159 transactions and goes back to Jan 3, 23.

Its sector and its market

Macrogenics Inc. among Health Care companies

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Coverage

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Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
Series with incidents in the period; the chart shows what could be kept.
SEC records
893 documents on file, from Aug 28, 2013 to Oct 7, 2026.
Company description
No description available.
This page
Generated on Oct 19, 2026; refreshed through the day.

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Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

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