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Insider · CIK 0001670579

Rachel E. Haurwitz

ceopresidentofficerdirector

Files at CRBU (Caribou Biosciences, Inc.). First filing Mar 17, 2025, latest Mar 17, 2025.

Rachel E. Haurwitz files SEC Form 4 as CEO, president and director at CRBU (Caribou Biosciences, Inc.). Since Mar 17, 2025, Rachel E. Haurwitz has reported 1 open-market buy worth $20k and 0 open-market sells worth $0, the latest filed on Mar 17, 2025.

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

The newest scored trade: bought $20k of CRBU on Mar 14, 2025, filed Mar 17, 2025, scored 20 (weak).

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
1 / 0
$20k bought, $0 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.

CRBU: Caribou Biosciences, Inc.

CRBUOct 9, 2026 · close 0.46

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
20Weak
CRBUbuy
Caribou Biosciences, Inc.
$20k
20,000 shares
+1%-

Transactions

Every row this insider has filed, 5 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Feb 20, 2026CRBU
Caribou Biosciences, Inc.
AGrant or award
Common Stock
+151,700$0.00$0447,150Feb 20, 2026
Feb 20, 2026CRBU
Caribou Biosciences, Inc.
AGrant or award
Option to purchase Common Stockderivative
+682,500$0.00$0682,500Feb 20, 2026
Mar 14, 2025CRBU
Caribou Biosciences, Inc.
POpen-market purchase
Common Stockindirect: By Trust
+20,000$1.02$20k3,369,395Mar 17, 2025
Feb 20, 2025CRBU
Caribou Biosciences, Inc.
AGrant or award
Common Stock
+136,750$0.00$0295,450Feb 21, 2025
Feb 20, 2025CRBU
Caribou Biosciences, Inc.
AGrant or award
Option to purchase Common Stockderivative
+618,250$0.00$0618,250Feb 21, 2025

Questions about Rachel E. Haurwitz

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

Is Rachel E. Haurwitz buying or selling?

Not in the last 12 months. Rachel E. Haurwitz's latest open-market trade on SEC Form 4 was bought $20k of CRBU on Mar 14, 2025.

How did Rachel E. Haurwitz's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Rachel E. Haurwitz has 0.

Where does Rachel E. Haurwitz file Form 4?

Rachel E. Haurwitz has filed Form 4 at CRBU (Caribou Biosciences, Inc.) as President and CEO. 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.

Rachel E. Haurwitz: insider trades and track record | InsiderTell