Form 4 for MPLT MapLight Therapeutics, Inc.

Accepted 2025-10-30 00:00:00 ET · period of report 2025-10-28 · accession 0001388325-25-000018 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
D	2025-10-30	2025-10-28	MPLT	Novo Holdings A/S	10%	P - Purchase	$17.00	+952.9K	3.69M	+35%	+$16.20M
D	2025-10-30	2025-10-28	MPLT	Novo Holdings A/S	10%	C - Cnv Deriv	—	+2.73M	2.73M	New	—
DM	2025-10-30	2025-10-28	MPLT	Novo Holdings A/S	10%	C - Cnv Deriv	$0.00	-45.93M	0	-100%	$0

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Voting Common Stock	2025-10-28	P	A	952,941	$17.00	3,686,622	D	—	—	(F2) Represents a purchase from the underwriters in the Issuer's initial public offering.
2	Common	Voting Common Stock	2025-10-28	C	A	2,733,681	—	2,733,681	D	—	—	(F1) The Series C Preferred Stock and Series D Preferred Stock automatically converted into voting common stock upon the closing of the Issuer's initial public offering for no additional consideration, on a 1-for-16.8 basis, and had no expiration date.
3	Derivative	Series D Preferred Stock	2025-10-28	C	D	19,734,671	$0.00	0	D	— · — to —	1,174,682 Voting Common Stock	(F1) The Series C Preferred Stock and Series D Preferred Stock automatically converted into voting common stock upon the closing of the Issuer's initial public offering for no additional consideration, on a 1-for-16.8 basis, and had no expiration date.
4	Derivative	Series C Preferred Stock	2025-10-28	C	D	26,191,207	$0.00	0	D	— · — to —	1,558,999 Voting Common Stock	(F1) The Series C Preferred Stock and Series D Preferred Stock automatically converted into voting common stock upon the closing of the Issuer's initial public offering for no additional consideration, on a 1-for-16.8 basis, and had no expiration date.