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

MFS HIGH YIELD MUNICIPAL TRUST

CMU · — · CIK 0000809844 · Closed-End Funds

INSIDER SIGNAL

No active buy signal

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

2 Form 4 transaction lines observed in the same window
0 sales · 2 option, withholding, award, gift or other lines

Last qualifying purchase2026-01-20 · Bulldog Investors, LLP; Dakos Andrew; GOLDSTEIN PHILLIP · $2.4K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
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
JPMorgan Chase Bank, N.A.TenPercentOwner
○○
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

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: 2026-01-20 · Bulldog Investors, LLP; Dakos Andrew; GOLDSTEIN PHILLIP.

Recent Form 4 activity

2Purchases
0Sales
2Other Form 4 lines
4SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER2 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

The FINRA report lists no short interest for this ticker.

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
2026-01-20Bulldog Investors, LLP; Dakos Andrew; GOLDSTEIN PHILLIPPurchase (P)Common Stock678USD 3.50USD 2,373SEC filing ↗
2026-01-20Bulldog Investors, LLP; Dakos Andrew; GOLDSTEIN PHILLIPPurchase (P)Common Stock678USD 3.50USD 2,373SEC filing ↗
2023-11-08Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock10,448USD 2.98USD 31,135SEC filing ↗
2023-07-24Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock46,009USD 3.30USD 151,830SEC filing ↗
2023-07-18Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock521USD 3.26USD 1,698SEC filing ↗
2023-06-27Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock7,194USD 3.24USD 23,309SEC filing ↗
2023-06-21Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock3,070USD 3.18USD 9,763SEC filing ↗
2023-06-08Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock12,874USD 3.19USD 41,068SEC filing ↗
2023-06-06Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock358,678USD 3.15USD 1,129,836SEC filing ↗
2023-05-19Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock10,923USD 3.18USD 34,735SEC filing ↗
2023-05-18Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock179USD 3.20USD 573SEC filing ↗
2023-05-16Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock12,601USD 3.22USD 40,575SEC filing ↗
2023-05-15Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock12,046USD 3.20USD 38,547SEC filing ↗
2023-05-12Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock576USD 3.19USD 1,837SEC filing ↗
2023-05-11Saba Capital Management, L.P.; Weinstein BoazPurchase (P)Common Stock14,574USD 3.19USD 46,491SEC filing ↗

Form 4 evidence

4 transaction lines in the latest 365-day window; 32 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-08JPMorgan Chase Bank, N.A.J (J)Remarketable Variable Rate MuniFund Term Preferred Shares330USD —USD —SEC filing ↗
2026-05-01JPMorgan Chase Bank, N.A.J (J)Remarketable Variable Rate Munifund Term Preferred Shares180USD —USD —SEC filing ↗
2026-01-20Bulldog Investors, LLP; Dakos Andrew; GOLDSTEIN PHILLIPPurchase (P)Common Stock678USD 3.50USD 2,373SEC filing ↗
Show recent Form 4 evidence (4 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-08JPMorgan Chase Bank, N.A.J (J)Remarketable Variable Rate MuniFund Term Preferred Shares330USD —USD —SEC filing ↗
2026-05-01JPMorgan Chase Bank, N.A.J (J)Remarketable Variable Rate Munifund Term Preferred Shares180USD —USD —SEC filing ↗
2026-01-20Bulldog Investors, LLP; Dakos Andrew; GOLDSTEIN PHILLIPPurchase (P)Common Stock678USD 3.50USD 2,373SEC filing ↗
2026-01-20Bulldog Investors, LLP; Dakos Andrew; GOLDSTEIN PHILLIPPurchase (P)Common Stock678USD 3.50USD 2,373SEC 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 · —
TickerCMU
CIK0000809844
SectorClosed-End Funds
Industry— Yahoo Finance
SEC SICInvestment company (SEC forms N-2, N-2/A, N-30D)
Exchange—

Data coverage

Local Form 4 history32 transaction lines from 2021-07-20 to 2026-06-08
17 P purchase lines · 6 S sale lines · 9 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.