Security key
142038108
Caribou Biosciences, Inc. - Common Stock (CRBU)
CUSIP: 142038108
Q2 2025 13F Holders as of 30 Jun 2025
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 40,657,539
- Total 13F value
- $51,233,181
- Share change
- -9,448,979
- Put/Call ratio
- 213%
- SEC-reported price per share
- $1.26
- Number of holders
- 128
- Value change
- -$11,182,668
- Number of buys
- 62
- Number of sells
- 75
- Shares outstanding
- 99,672,278
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2025
Institutions
128
Top holders
10
CRBU full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Caribou Biosciences, Inc. SEC filings
Caribou Biosciences, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 142038108
Recent filing periods:
Ownership snapshot
Top reported holders of CRBU - Caribou Biosciences, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Rachel E. Haurwitz
Disclosed value leader
FMR LLC
Comparable rows
15/15
Latest evidence
22 Apr 2025
13D/G
13F
3/4/5
Lead comparable stake: 5%
13D/G row: Rachel E. Haurwitz
Showing 1-6 of 15 holder rows.
Quick read
Rachel E. Haurwitz leads the comparable SEC ownership view at 5%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Rachel E. Haurwitz's linked filing trail.
Comparable ownership
Top 5
Rachel E. Haurwitz
5%
VANGUARD GROUP INC
4.9%
BANK OF AMERICA CORP /DE/
2.2%
BlackRock, Inc.
6.4%
PFIZER INC
4.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Rachel E. Haurwitz |
13D/G
|
5%
|
$4,008,603
4,716,003 shares
|
$0 | 22 Apr 2025 |
| VANGUARD GROUP INC |
13F
13D/G
Company · The Vanguard Group
|
4.9%
from 13D/G
|
$4,128,615
4,522,032 shares
|
— | 31 Mar 2025 |
| BANK OF AMERICA CORP /DE/ |
13D/G
13F
Company
|
2.2%
|
$1,658,405
1,951,065 shares
|
$0 | 31 Dec 2024 |
| BlackRock, Inc. |
13F
Company
|
6.4%
|
$5,794,934
6,346,438 shares
|
— | 31 Mar 2025 |
| PFIZER INC |
13F
Company
|
4.7%
|
$4,282,833
4,690,431 shares
|
— | 31 Mar 2025 |
| Kynam Capital Management, LP |
13F
Company
|
3.3%
|
$2,985,058
3,269,147 shares
|
— | 31 Mar 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
128
Shares
40,657,539
Rows available
128
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
127
Q2 2025 holders
128
Holder diff
1
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend