Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

MapLight Therapeutics, Inc.

MPLT · Nasdaq · CIK 0001770069 · Healthcare · Biotechnology

INSIDER SIGNAL

No active buy signal

5 qualifying P purchase groups
in the current 180-day scoring window

133 Form 4 transaction lines observed in the same window
114 sales · 13 option, withholding, award, gift or other lines

Last qualifying purchase2026-08-14 · Catalyst4, Inc. · $50.1M

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying5 qualifying line group(s)
Recent salesHigh
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Hanson KristopherGeneral Counsel
▼▼○▼▼
Lillie James WoodruffChief Scientific Officer
▼▼▼○▼
Kroeger Christopher A.Chief Executive Officer
▼▼○▼
Kreitzer AnatolChief Discovery Officer
▼▼○▼
GILLIS JONATHANCAO and Interim CFO
▼▼○▼
Foff Erin PennockChief Medical Officer
▼▼○▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 2 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS2
PURCHASE CONCENTRATION100%Largest buyer: Catalyst4, Inc. · $65.4M
CLUSTER BUYING · 15D2 insidersPeak activity: 2026-07-28–2026-07-30

Roles in the peak window: Director, TenPercentOwner. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-08-14 · Catalyst4, Inc..

Recent Form 4 activity

12Purchases
145Sales
41Other Form 4 lines
82SEC filings · 365 days
BUYING6 qualifying P line(s) · 180 days
SELLING114 sale line(s) · context only
OTHER13 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
3,148,094
Previous report
3,297,011
Avg daily volume
542,975
Days to cover
5.8

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-14Catalyst4, Inc.Purchase (P)Voting Common Stock4,400,000USD 11.38USD 50,072,000SEC filing ↗
2026-07-30Catalyst4, Inc.Purchase (P)Voting Common Stock1,000,000USD 13.00USD 13,000,000SEC filing ↗
2026-07-29Catalyst4, Inc.Purchase (P)Voting Common Stock3,000USD 12.63USD 37,890SEC filing ↗
2026-07-28Catalyst4, Inc.Purchase (P)Voting Common Stock206,225USD 11.04USD 2,276,737SEC filing ↗
2026-07-28Cox TroyPurchase (P)Voting Common Stock15,620USD 9.52USD 148,702SEC filing ↗
2026-02-20Pavlov GeorgePurchase (P)Voting Common Stock9,920USD 17.86USD 177,171SEC filing ↗
2026-02-19Pavlov GeorgePurchase (P)Voting Common Stock4,422USD 17.57USD 77,695SEC filing ↗
2026-02-18Pavlov GeorgePurchase (P)Voting Common Stock10,658USD 17.48USD 186,302SEC filing ↗
2026-02-10Garnett Timothy JohnPurchase (P)Voting Common Stock14,124USD 17.89USD 252,678SEC filing ↗
2025-10-28Novo Holdings A/SPurchase (P)Voting Common Stock952,941USD 17.00USD 16,199,997SEC filing ↗
2025-10-28Catalyst4, Inc.Purchase (P)Voting Common Stock5,441,176USD 17.00USD 92,499,992SEC filing ↗

Form 4 evidence

198 transaction lines in the latest 365-day window; 198 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-15Lillie James WoodruffSale (S)Voting Common Stock11,513USD 8.08USD 93,025SEC filing ↗
2026-10-15Kroeger Christopher A.Sale (S)Voting Common Stock73,691USD 8.08USD 595,423SEC filing ↗
2026-10-15Kreitzer AnatolSale (S)Voting Common Stock12,248USD 7.84USD 96,024SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-15Lillie James WoodruffSale (S)Voting Common Stock11,513USD 8.08USD 93,025SEC filing ↗
2026-10-15Kroeger Christopher A.Sale (S)Voting Common Stock73,691USD 8.08USD 595,423SEC filing ↗
2026-10-15Kreitzer AnatolSale (S)Voting Common Stock12,248USD 7.84USD 96,024SEC filing ↗
2026-10-15Hanson KristopherSale (S)Voting Common Stock9,020USD 8.08USD 72,882SEC filing ↗
2026-10-15GILLIS JONATHANSale (S)Voting Common Stock10,167USD 8.08USD 82,149SEC filing ↗
2026-10-15Foff Erin PennockSale (S)Voting Common Stock15,355USD 8.08USD 124,068SEC filing ↗
2026-09-16Hanson KristopherSale (S)Voting Common Stock16,509USD 11.67USD 192,660SEC filing ↗
2026-08-17Lillie James WoodruffAward / grant (A)Voting Common Stock7,730USD 0.00USD 0SEC filing ↗
2026-08-17Kroeger Christopher A.Award / grant (A)Voting Common Stock23,145USD 0.00USD 0SEC filing ↗
2026-08-17Kreitzer AnatolAward / grant (A)Voting Common Stock6,020USD 0.00USD 0SEC filing ↗
2026-08-17Hanson KristopherAward / grant (A)Voting Common Stock7,730USD 0.00USD 0SEC filing ↗
2026-08-17GILLIS JONATHANAward / grant (A)Voting Common Stock8,242USD 0.00USD 0SEC filing ↗
2026-08-17Foff Erin PennockAward / grant (A)Voting Common Stock13,360USD 0.00USD 0SEC filing ↗
2026-08-14Catalyst4, Inc.Purchase (P)Voting Common Stock4,400,000USD 11.38USD 50,072,000SEC filing ↗
2026-08-03Lillie James WoodruffSale (S)Voting Common Stock22,082USD 12.54USD 276,908SEC filing ↗
2026-07-30Catalyst4, Inc.Purchase (P)Voting Common Stock1,000,000USD 13.00USD 13,000,000SEC filing ↗
2026-07-29Catalyst4, Inc.Purchase (P)Voting Common Stock3,000USD 12.63USD 37,890SEC filing ↗
2026-07-28Catalyst4, Inc.Purchase (P)Voting Common Stock206,225USD 11.04USD 2,276,737SEC filing ↗
2026-07-28Cox TroyPurchase (P)Voting Common Stock15,620USD 9.52USD 148,702SEC filing ↗
2026-07-17Kreitzer AnatolSale (S)Voting Common Stock17,173USD 37.60USD 645,719SEC filing ↗
2026-07-17GILLIS JONATHANSale (S)Voting Common Stock18,469USD 37.60USD 694,463SEC filing ↗
2026-07-17Lillie James WoodruffSale (S)Voting Common Stock2,077USD 37.90USD 78,718SEC filing ↗
2026-07-17Kroeger Christopher A.Sale (S)Voting Common Stock16,779USD 37.90USD 635,924SEC filing ↗
2026-07-17Hanson KristopherSale (S)Voting Common Stock1,130USD 37.90USD 42,827SEC filing ↗
2026-07-17Foff Erin PennockSale (S)Voting Common Stock3,656USD 37.90USD 138,562SEC filing ↗
2026-07-16Kreitzer AnatolSale (S)Voting Common Stock9,056USD 36.80USD 333,235SEC filing ↗
2026-07-16GILLIS JONATHANSale (S)Voting Common Stock8,455USD 36.80USD 311,112SEC filing ↗
2026-07-16Lillie James WoodruffSale (S)Voting Common Stock8,547USD 36.79USD 314,412SEC filing ↗
2026-07-16Kroeger Christopher A.Sale (S)Voting Common Stock69,082USD 36.79USD 2,541,341SEC filing ↗
2026-07-16Hanson KristopherSale (S)Voting Common Stock8,118USD 36.78USD 298,616SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerMPLT
CIK0001770069
SectorHealthcare
IndustryBiotechnology Yahoo Finance
SEC SIC2834 Pharmaceutical Preparations
ExchangeNasdaq

Data coverage

Local Form 4 history198 transaction lines from 2025-10-27 to 2026-10-15
12 P purchase lines · 145 S sale lines · 41 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.