undamentalytics Newsletter

Macrogenics Inc insider trading

Every open-market purchase and sale by Macrogenics Inc's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

No insider has bought shares on the open market in five years.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Macrogenics Inc insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Macrogenics Inc’s insiders pay?

From February 18, 2014 to August 21, 2025, 10 insiders reported 17 open-market purchases and 5 sales not made under a pre-set plan in Macrogenics Inc. Twelve months after each purchase was reported, the shares were −17.7% against the S&P 500 on average (median −56.9%), over 11 purchases with a full year of prices; 27% beat the index. After sales, the shares moved −0.5% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on March 7, 2016 into $1,572 by November 2, 2026, −16.0% a year. It held shares 40% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $19,566 (+6.5% a year), and held throughout $44,845 (+15.2%).

$0$20.0k$40.0k 201620182020202220242026 $44.8k$19.6k$1.6k
Copying Macrogenics Inc's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Macrogenics Inc's insiders from March 7, 2016, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 40% of the time.
Macrogenics Inc: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Bb Biotech AG 10% owner 8 −11.3% (5) 40% 0 — October 4, 2023
Biotech Target N V 10% owner 5 −14.1% (4) 25% 0 — September 11, 2023
Hurwitz Edward Director 1 −57.5% (1) 0% 1 −14.2% (1) September 1, 2023
Costa Paulo F Director 1 −23.8% (1) 0% 0 — March 4, 2016
Galbraith Kenneth Director 0 — — 1 −34.0% (1) September 10, 2020
Heiden William K Director 1 — — 0 — August 21, 2025
Karrels James SVP, CFO and Secretary 1 — — 0 — June 17, 2022
Oronsky Arnold L Director 0 — — 1 −14.2% (1) February 18, 2014
Stein Kathryn E Senior VP, Prd Dev & Reg Aff 0 — — 1 +62.5% (1) May 30, 2014
Wigginton Jon Marc Sr VP, Clinical Dev. & CMO 0 — — 1 −2.5% (1) April 20, 2017

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Macrogenics Inc

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Macrogenics Inc in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 3 buying crowds with six months of prices, it averaged −51.6% against the index. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
November 30, 20222 buying−5.2%−30.3%+15.9%
November 30, 20212 buying−43.6%−71.5%−54.3%
June 30, 20212 buying−25.5%−53.1%−78.4%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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