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CRBU · Caribou Biosciences, Inc.
> Ask across nine datasets ⌘K
LIVE
TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475
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CRBU

Caribou Biosciences, Inc.
PHARMA & BIOTECH · BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES) · CIK 0001619856
SEC FILINGS☆ WATCH
INSIDER NET · 180D
-
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
0
CONGRESS BUYERS · 1Y
0
FUNDS ADDED · QTR
71
13F, latest reported quarter
REVENUE GROWTH
+11.7%
XBRL, annual
NET MARGIN
-1327.4%
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
no Form 4 purchases or sales on file
CONGRESS
no member of Congress has reported trading it
FUNDS
71 funds added or opened last quarter
more than 54% of Pharma & Biotech
REVENUE
+11.7% year over year
more than 62% of Pharma & Biotech
MARGIN
-1327.4% net margin
below 91% of Pharma & Biotech
BUYBACKS
no share repurchases reported
SHORT
10.9% of shares outstanding short · 9.4 days to cover · settled 2026-07-31
more than 80% of Pharma & Biotech
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
71 funds added or opened positions in the latest 13F quarter, of 139 holders.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN -16.5%
-16.5%12M
-26%-0%+25%+51%2025-092025-102025-122026-032026-052026-072026-09 2026-02-24 · MCCLUNG BARBARA G sold $13.6K2026-02-24 · Khan Ruhi Ahmad sold $13.6K2026-02-25 · Kelly Timothy P sold $12.0K2026-02-24 · Kelly Timothy P sold $6.2K2026-02-24 · Albertson Tina M. sold $2.1K
INSIDER SELL
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
The complete filing record, in one place.
The record shows 71 funds added last quarter. Every figure is a federal filing, dated the day it became public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
UTHRCPIXMRNAREGNLLYALNYELFCITRMDGLDNAVRTXNUVL
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

No insider purchases or sales are on record for Caribou Biosciences, Inc. in the period covered. Source: SEC Form 4 filings, as of 2026-09-06.

INSIDER
FILED
SHARES
VALUE
Kelly Timothy P
Chief Technology Officer
SELL
2026-02-25
6,228.0
$12.0K
Kelly Timothy P
Chief Technology Officer
SELL
2026-02-24
3,147.0
$6.2K
MCCLUNG BARBARA G
Chief Legal Officer
SELL
2026-02-24
6,938.0
$13.6K
Khan Ruhi Ahmad
Chief Business Officer
SELL
2026-02-24
6,938.0
$13.6K
Albertson Tina M.
Chief Medical Officer
SELL
2026-02-24
1,066.0
$2.1K
24 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 19 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders
13F · holdings as of the latest quarter funds have reported
BlackRock, Inc.
7,815,843.0 sh
$13.8M
Pfizer Inc
4,690,431.0 sh
$7.9M
VANGUARD CAPITAL MANAGEMENT LLC
4,208,568.0 sh
$7.4M
MACKENZIE FINANCIAL CORP
3,650,796.0 sh
$6.4M
RENAISSANCE TECHNOLOGIES LLC
2,773,545.0 sh
$4.9M
SCHEDULE 13D/G
No 5%+ ownership filings
Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.
FORM 144
No planned-sale notices
No insider has notified an intent to sell. This is the panel to watch after a run-up.
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
AXS Green Alpha ETF
$401.6K POSITION · AS OF 2026-03-31
0.9%
Invesco NASDAQ Future Gen 200 ETF
$64.8K POSITION · AS OF 2026-02-28
0.5%
Global X Genomics & Biotechnology ETF
$113.8K POSITION · AS OF 2026-02-28
0.2%
Ultra-Small Company Market Fund
$215.7K POSITION · AS OF 2026-03-31
0.2%
BRUCE FUND
$475.0K POSITION · AS OF 2026-03-31
0.1%
NVIT Small Cap Value Fund
$75.3K POSITION · AS OF 2026-03-31
0.0%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Clinical pipeline
ClinicalTrials.gov · 5 registered trials, 2 still enrolling or running — a status change here is dated weeks before the press release
4
Phase 1
1 ACTIVE
1
Not applicable
1 ACTIVE
TRIALS MATCHED TO THIS TICKER BY SPONSOR NAME · STUDIES RUN UNDER A SUBSIDIARY'S OWN NAME ARE NOT INCLUDED
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
2025-122024-122023-122022-12
REVENUE$11.2M$10.0M$34.5M$13.9M
OPERATING INCOME$-148.3M$-166.6M$-116.1M$-106.4M
NET INCOME$-148.1M$-149.1M$-102.1M$-99.4M
EPS (DILUTED)-1.59-1.65-1.38-1.64
OPERATING CASH FLOW$-111.0M$-138.2M$-93.3M$-91.0M
CASH$12.4M$16.3M$51.2M$58.3M
SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-06 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
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Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

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© 2026 WAVEMAN · SOURCE: SEC EDGAR & OFFICIAL GOVERNMENT DATA · NOT INVESTMENT ADVICE · CHART BY TRADINGVIEW · UPDATED 2026-09-06 ALL SYSTEMS LIVE FOR MACHINES →