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MGNX · Macrogenics Inc
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MGNX Macrogenics (MGNX) Insider Trading, Ownership & Congress Trades

Pharma & Biotech · Pharmaceutical preparations · CIK 0001125345
Form 144 · 5
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
72
13F, latest reported quarter
Conversions, 180 days
11
Codes C/M, not in net · $124.8K priced

What the filings say about MGNX

Insiders, 180 days
-$129.1K net sold
1 seller · 100% of sales under a 10b5-1 plan
Planned sales (Form 144), 90 days
$580.5K
5 notices

Macrogenics insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, MACROGENICS INC insiders sold a net $129.1K of stock across 41 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-28.

Insider
Filed
Shares
Value
Since filing
Senior VP, GC, and Secretary
SELL
2026-08-20 SECtraded 2026-08-19
31,105
$129.1K
-46.6%
Context
  • 10 earlier Form 4 trades (code P or S) here by this insider (10 sales), the last on Apr 4, 2024.
  • No other insider sold within 30 days.
  • 72 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Senior VP, GC, and Secretary Peters Jeffrey Stuart sold about $129.1K of MGNX under a 10b5-1 plan on Aug 19, 2026, the largest insider sale at the company since 2024; 72 funds added in the latest 13F quarter.
BUY
2025-08-21 SECtraded 2025-08-20
49,500
$73.8K
+29.6%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 buy), the last on Aug 19, 2025.
  • The trade is 44.6% of the 111,000 shares held after it.
  • No other insider bought within 30 days.
  • 72 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director HEIDEN WILLIAM K bought about $73.8K of MGNX on Aug 20, 2025; 72 funds added in the latest 13F quarter.
BUY
2025-08-21 SECtraded 2025-08-19
50,500
$76.8K
+29.6%
Context
  • First Form 4 purchase or sale (code P or S) here by this insider on our record.
  • The trade is 82.1% of the 61,500 shares held after it.
  • No other insider bought within 30 days.
  • 72 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director HEIDEN WILLIAM K bought about $76.8K of MGNX on Aug 19, 2025, the largest insider purchase at the company since 2023; 72 funds added in the latest 13F quarter.
VP, Controller & Treasurer
SELL
2025-02-19 SECtraded 2025-02-15
423
$1.1K
-24.0%
Context
  • First Form 4 purchase or sale (code P or S) here by this insider on our record.
  • The trade is 4.4% of the 9,532 shares held after it.
  • No other insider sold within 30 days.
  • 72 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: VP, Controller & Treasurer Smith Beth Ann sold about $1.1K of MGNX on Feb 15, 2025; 72 funds added in the latest 13F quarter.
Senior VP and General Counsel
SELL
2024-04-08 SECtraded 2024-04-04
5,351
$94.9K
-87.9%
Context
  • 5 earlier Form 4 trades (code P or S) here by this insider (5 sales), the last on Mar 6, 2024.
  • The trade is 169.1% of the 3,165 shares held after it.
  • No other insider sold within 30 days.
  • 72 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Senior VP and General Counsel Peters Jeffrey Stuart sold about $94.9K of MGNX on Apr 4, 2024; 72 funds added in the latest 13F quarter.
41 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Showing the latest few. to see 36 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$129.1K over 180 days
-$129.1K over 90 days
more than 54% of Pharma & Biotech
Congress
no House purchase disclosed in the last 12 months
Funds
72 funds bought in last quarter
more than 57% of Pharma & Biotech
Revenue
-0.3% year over year
below 57% of Pharma & Biotech
Margin
-49.9% net margin
more than 50% of Pharma & Biotech
Buybacks
no share repurchases reported
Short interest
12.5% of the float short (float per yahoo 2026-10-26) · 10.9 days to cover · settled 2026-09-30
more than 75% of Pharma & Biotech
What changed in the last 30 days
Oct 22Former Director Karen Ferrante filed to sell $79.2K by Oct 22 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.

Watch MGNX

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The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+19.7%12M
-27%+37%+101%+166%2025-102025-122026-022026-042026-062026-082026-10 2026-08-19 · Peters Jeffrey Stuart sold $129.1K2026-10-22 · Karen Ferrante filed to sell $79.2K2026-09-21 · Thomas Spitznagel filed to sell $65.5K2026-08-19 · Jeffrey Peters filed to sell $129.1K2026-08-17 · Jay Siegel filed to sell $175.7K2026-08-03 · Jay Siegel filed to sell $130.9K2026-07-13 · Thomas Spitznagel filed to sell $75.5K
Insider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns MGNX: institutional holders (13F)

13F holdings, latest reported quarter
$23.1M
4,679,229 sh
$21.6M
$11.5M

Congress trades in MGNX

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

MGNX planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
Karen Ferrante
Filed 2026-10-22
$79.2K
Thomas Spitznagel
Filed 2026-09-21
$65.5K
Jeffrey Peters
Filed 2026-08-19
$129.1K
Jay Siegel
Filed 2026-08-17
$175.7K
Jay Siegel
Filed 2026-08-03
$130.9K

MGNX mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Wasatch Long/Short Alpha Fund
$443.7K position · as of 2026-06-30
1.2%
Wasatch Ultra Growth Fund
$5.2M position · as of 2026-06-30
1.1%
Wasatch Micro Cap Fund
$3.6M position · as of 2026-06-30
0.5%
Nomura Healthcare Fund
$1.9M position · as of 2026-06-30
0.3%
Ultra-Small Company Market Fund
$339.6K position · as of 2026-06-30
0.2%
SMALL COMPANY GROWTH PORTFOLIO
$2.0M position · as of 2026-06-30
0.1%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Clinical pipeline
24 registered trials, 5 still running (ClinicalTrials.gov). A status change is dated here weeks before the press release.
10
Phase 1
4 active
6
Phase 2
1 active
2
Phase 3
0 active
1
Not applicable
0 active
5
Multi-phase
0 active
Matched by sponsor name. Trials run under a subsidiary's own name are not included.
Government contracts
Award ceilings over the contract's life, subsidiaries included. Not annual revenue (USASpending.gov).
Department Of Health And Human Services
IGF::OT::IGF DUAL AFFINITY RE-TARGETING MOLECULES FOR HIV-1 SUPPRESSION · 2015-09-14
$24.6M
Federal awards ≥ $25M in the last 90 days, matched via the SAM.gov parent registry
Executive pay vs shareholder return · Scott Koenig
CEO pay, headline and as actually paid, against the company's return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2024
$6.4M
$1.8M
$2.5M
-86%
n/a
2023
$3.7M
$6.5M
$1.7M
-58%
n/a
2022
$4.6M
-$570.5K
$1.8M
-71%
n/a
Tagged by the company under SEC Item 402(v). Returns are cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $129.1K sold by insiders over 180 days, 72 funds added last quarter, $580.5K in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Same sector, ranked by filing activity
Sector by SEC SIC code

MGNX financials

Revenue growth
-0.3%
XBRL, annual
Net margin
-49.9%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$167.7M
four quarters, 2025-07-01 to 2026-06-30
Net margin, TTM
+35.8%
net income over revenue, 2025-07-01 to 2026-06-30
Free cash flow, TTM
-$65.5M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Debt to equity
n/a
no debt line filed
Cash flow to debt
n/a
no debt line filed
Return on equity
+134.0%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets
+20.3%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on invested capital
n/a
the filed year and its quarters do not reconcile, so the trailing figure is withheld
Return on capital employed
n/a
the filed year and its quarters do not reconcile, so the trailing figure is withheld
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Enterprise value
n/a
no debt line filed
FCF yield
-47.0%
TTM free cash flow over market value at close 2026-10-26
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-122024-122023-122022-12
Revenue$149.5M$150.0M$58.7M$151.9M
Operating income-$72.8M-$110.6M-$168.2M-$121.4M
Net income-$74.6K-$67.0K-$9.1K-$119.8M
EPS (diluted)n/an/a-0.15-1.95
Operating cash flow-$81.0M-$68.4M-$78.2M-$87.0M
Cash$57.2M$182.8M$101.0M$108.9M
SEC XBRL, fiscal years, as known on 2026-10-28

MGNX Stock Sonar score 5/7 axes

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MGNX ranks highest on profitability (95th percentile) and institutional and government (57th), and lowest on insider conviction (1st), among Pharma & Biotech peers.

ProfitGrowthInsidersInstitutionsRisk
Profitability
95
Inputs
  • Return on equity+134.0% · 98 pct, sector of 545
  • Return on assets+20.3% · 92 pct, sector of 691
  • Return on invested capitalthe filed year and its quarters do not reconcile, so the trailing figure is withheld
  • Return on capital employedthe filed year and its quarters do not reconcile, so the trailing figure is withheld
Growth
43
Inputs
  • Revenue growth, YoY-0.3% · 43 pct, sector of 505
  • Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Insider conviction
0
Inputs
  • Net Form 4 buying (codes P and S), 180dno Form 4 purchase or sale (code P or S) in 180 days
  • Insider buyers, 180d0 · 0 pct, sector of 437
Institutional and government
57
Inputs
  • Funds adding, latest quarter72 · 57 pct, sector of 698
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
47
Inputs
  • Short interest, % of float+12.5% · 32 pct, sector of 813
  • Recalls per $1B revenue, 3ynot measured for this sector, almost no peer has an event
  • EPA cases per $1B revenue, 5ynot measured for this sector, almost no peer has an event
  • New text in Risk Factors, latest 10-K+8.2% · 63 pct, sector of 511
2 not measured: Financial health, US patents
  • Financial health needs 1 of 2 inputs, 0 present: no debt line filed
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

5 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

MGNX filings, in plain words

Are Macrogenics insiders buying or selling MGNX?

In the 180 days to 2026-10-28, Macrogenics insiders were net sellers, a net $129.1K across purchases and sales reported on Form 4, by 1 seller.

Are there planned insider sales of MGNX?

Yes. 5 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-28, covering $580.5K of stock; the latest, by Karen Ferrante, was filed 2026-10-22.

Read the full summary

In the 180 days to 2026-10-28, Macrogenics insiders were net sellers of MGNX, a net $129.1K across purchases and sales reported on Form 4 by 1 seller. Insiders filed 5 Form 144 notices of intent to sell in the 90 days to 2026-10-28, covering $580.5K of stock. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.

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