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sellWeak cluster of 310b5-1 plan

Sukumar Nagendran sold $942k of TSHA

President and Head of R&D at Taysha Gene Therapies, Inc.. 200,000 shares at an average of $4.71, traded Jan 12, 2026, filed Jan 14, 2026.

Warning score
29
Value
$942k
200,000 shares
Holdings after
1,006,439
-17% from before
From 52-week low
+330%
low $1.13, close $4.86
From 52-week high
-18%
high $5.91, as of Jan 12, 2026

Score components

  • Role
    President
    +20
  • Trade size
    $942k at market
    +24
  • Share of holdings sold
    Sold 17% of holdings
    +5
  • Cluster
    3 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -9.7%, 3m +19.0%, 6m +22.8%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

TSHAOct 12, 2026 · close 4.14
Since filing Jan 14, 2026: -17.9%SPY +13.6% · excess -31.4%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001665124-26-000002, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jan 12, 2026MOption exercise
Common Stock10b5-1
+111,324$0.70$78k1,117,763Jan 14, 2026
Jan 12, 2026MOption exercise
Common Stock10b5-1
+88,676$1.71$152k1,206,439Jan 14, 2026
Jan 12, 2026SOpen-market sale
Common Stock10b5-1
-200,000$4.71$942k1,006,439Jan 14, 2026
Jan 12, 2026AGrant or award
Common Stock10b5-1
+427,000$0.00$01,433,439Jan 14, 2026
Jan 12, 2026MOption exercise
Employee Stock Option (right to buy)derivative10b5-1
-111,324$0.00$0111,359Jan 14, 2026
Jan 12, 2026MOption exercise
Employee Stock Option (right to buy)derivative10b5-1
-88,676$0.00$0474,941Jan 14, 2026
Jan 12, 2026AGrant or award
Employee Stock Option (right to buy)derivative10b5-1
+274,000$0.00$0274,000Jan 14, 2026

Related signals

Other insiders at Taysha Gene Therapies, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
30Weak
TSHAsell10b5-1
Taysha Gene Therapies, Inc.
Sukumar Nagendran
President and Head of R&D
$1.2M
200,000 shares
-18%
13Weak
TSHAsell10b5-1
Taysha Gene Therapies, Inc.
Sukumar Nagendran
President and Head of R&D
$892k
200,000 shares
-15%
37Weak
TSHAsell 3
Taysha Gene Therapies, Inc.
Kamran Alam
CHIEF FINANCIAL OFFICER
$7,481
1,655 shares
-0%
55Moderate
TSHAsell 3
Taysha Gene Therapies, Inc.
Kamran Alam
CHIEF FINANCIAL OFFICER
$485k
102,817 shares
-7%
54Moderate
TSHAsell 3
Taysha Gene Therapies, Inc.
Sukumar Nagendran
President and Head of R&D
$547k
116,050 shares
-8%
63Notable
TSHAsell 3
Taysha Gene Therapies, Inc.
Sean P. Nolan
Chief Executive Officer
$840k
178,101 shares
-6%
40Moderate
TSHAsell
Taysha Gene Therapies, Inc.
Sukumar Nagendran
President and Head of R&D
$1.7M
370,172 shares
-33%
10Weak
TSHAsell10b5-1
Taysha Gene Therapies, Inc.
Sukumar Nagendran
President and Head of R&D
$646k
200,000 shares
-17%
41Moderate
TSHAsell 2
Taysha Gene Therapies, Inc.
Kamran Alam
CHIEF FINANCIAL OFFICER
$155k
54,491 shares
-4%
39Weak
TSHAsell 2
Taysha Gene Therapies, Inc.
Sukumar Nagendran
President and Head of R&D
$163k
57,054 shares
-5%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.