M28 Capital Management LP

CIK 1807489 · last filed 2026-05-21

M28 Capital Management LP is a corporate insider who has filed 5 SEC Form 4 insider transactions across 3 companies since 2022. The most recent filing, for IVVD, was dated May 21, 2026. Across all open-market trades the lifetime net is +$38.4M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $1.2M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Disclosed Exposure

$1.18M

Companies

3

Total Filings

5

Lifetime Open-Market Net

$38.39M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.

Symbol	Role	Shares	Price	Disclosed Exposure	Lifetime OM Net	Filings	Latest Filed
IVVD		—	$0.77	—	$0	2	2026-05-21
GUTS	Director	1,389,451	$0.85	$1.18M	$14.00M	1	2024-02-08
Invivyd, Inc. (ADGI) Delisted		9,248,250	$4.64	$42.91M	$24.39M	2	2022-08-19

Recent Filings

5 filings

Form 4 transactions across all companies, newest first.

Filed	Symbol	Action	Net Shares	Net $	Link
2026-05-21	IVVD	Grant (A)	—	$0	EDGAR
2025-05-22	IVVD	Grant (A)	—	$0	EDGAR
2024-02-08	GUTS	Mixed	+3,712,234	$14.00M	EDGAR
2022-08-19	Invivyd, Inc. (ADGI) Delisted	Buy (P)	+5,700,000	$24.39M	EDGAR
2022-06-24	Invivyd, Inc. (ADGI) Delisted	Grant (A)	—	$0	EDGAR

Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.