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Insider · CIK 0002009350

Tai Sandi See

officer

Files at LXEO (Lexeo Therapeutics, Inc.). First filing May 20, 2025, latest Nov 20, 2025.

Tai Sandi See files SEC Form 4 as officer at LXEO (Lexeo Therapeutics, Inc.). Since May 20, 2025, Tai Sandi See has reported 0 open-market buys worth $0 and 4 open-market sells worth $41k, the latest filed on Nov 20, 2025.

A track record needs three past buys with six months of prices behind them; Tai Sandi See has 0, so none is measured yet.

The newest scored trade: sold $3,578 of LXEO on Nov 18, 2025, filed Nov 20, 2025, scored 30 (weak). In the last 12 months: 0 buys worth $0 and 2 sells worth $38k.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 4
$0 bought, $41k sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

LXEO: Lexeo Therapeutics, Inc.

LXEOOct 9, 2026 · close 3.23

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
30Weak
LXEOsell 5
Lexeo Therapeutics, Inc.
$3,578
386 shares
-1%+413% from low-9% from high
36Weak
LXEOsell 5
Lexeo Therapeutics, Inc.
$35k
3,888 shares
-6%+435% from low-14% from high
30Weak
LXEOsell 5
Lexeo Therapeutics, Inc.
$1,783
382 shares
-1%+175% from low-56% from high
30Weak
LXEOsell 4
Lexeo Therapeutics, Inc.
$1,018
367 shares
-1%+81% from low-71% from high

Planned sales

Form 144 notices this insider filed before selling restricted or control stock, newest first.

FiledCompanySharesValueSale datePast 3 months
Aug 18, 2025 LXEO
Lexeo Therapeutics, Inc.
382
0.00% of outstanding
$1,783Aug 18, 2025none
May 16, 2025 LXEO
Lexeo Therapeutics, Inc.
367
0.00% of outstanding
$1,018May 16, 2025$6,558
Feb 19, 2025 LXEO
Lexeo Therapeutics, Inc.
1,486
0.00% of outstanding
$6,558Feb 19, 2025none

Transactions

Every row this insider has filed, 7 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Nov 18, 2025LXEO
Lexeo Therapeutics, Inc.
SOpen-market sale
Common Stock
-386$9.27$3,57865,476Nov 20, 2025
Oct 15, 2025LXEO
Lexeo Therapeutics, Inc.
AGrant or award
Common Stock
+10,890$0.00$069,750Oct 17, 2025
Oct 17, 2025LXEO
Lexeo Therapeutics, Inc.
SOpen-market sale
Common Stock
-3,844$8.94$34k65,906Oct 17, 2025
Oct 17, 2025LXEO
Lexeo Therapeutics, Inc.
SOpen-market sale
Common Stock
-44$9.56$42165,862Oct 17, 2025
Aug 18, 2025LXEO
Lexeo Therapeutics, Inc.
SOpen-market sale
Common Stock
-382$4.67$1,78358,860Aug 20, 2025
May 16, 2025LXEO
Lexeo Therapeutics, Inc.
SOpen-market sale
Common Stock
-367$2.77$1,01859,242May 20, 2025
Mar 14, 2025LXEO
Lexeo Therapeutics, Inc.
AGrant or award
Common Stock
+5,720$2.61$15k59,609Apr 9, 2025

Questions about Tai Sandi See

Answered from the filings on this page, as of the latest one.

Is Tai Sandi See buying or selling?

In the last 12 months Tai Sandi See reported 0 open-market buys worth $0 and 2 open-market sells worth $38k on SEC Form 4; the latest was sold $3,578 of LXEO on Nov 18, 2025. Grants, option exercises and tax withholding are not counted.

How did Tai Sandi See's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Tai Sandi See has 0.

Where does Tai Sandi See file Form 4?

Tai Sandi See has filed Form 4 at LXEO (Lexeo Therapeutics, Inc.) as Chief Development Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

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.