Security key
45720N103
Inhibrx Biosciences, Inc. - Common Stock, par value $0.0001 per share (INBX)
CUSIP: 45720N103
Q3 2026 13F Holders as of 30 Sep 2026
- Security type / class
- Equity / Common Stock, par value $0.0001 per share
- Total 13F shares
- 32,951
- Total 13F value
- $3,297,714
- Share change
- +6,357
- SEC-reported price per share
- $100.08
- Number of holders
- 16
- Value change
- +$667,681
- Number of buys
- 11
- Number of sells
- 2
- Shares outstanding
- 14,665,629
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
16
Top holders
10
INBX full security history
Ownership snapshot
Full 13F holder table
Inhibrx Biosciences, Inc. SEC filings
Inhibrx Biosciences, Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of INBX - Inhibrx Biosciences, Inc. - Common Stock, par value $0.0001 per share (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
PERCEPTIVE ADVISORS LLC
Disclosed value leader
PERCEPTIVE ADVISORS LLC
Comparable rows
8/15
Latest evidence
23 Sep 2026
13D/G
13F
3/4/5
Lead comparable stake: 10%
7 rows are not safely comparable across share classes.
13D/G row: PERCEPTIVE ADVISORS LLC
Showing 1-6 of 15 holder rows.
Quick read
PERCEPTIVE ADVISORS LLC leads the comparable SEC ownership view at 10%.
8 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 PERCEPTIVE ADVISORS LLC's linked filing trail.
Comparable ownership
Top 5
PERCEPTIVE ADVISORS LLC
10%
VIKING GLOBAL INVESTORS LP
9.3%
MORGAN STANLEY
7.9%
Jon Faiz Kayyem
7.9%
Mark P. Lappe
6.4%
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 |
|---|---|---|---|---|---|
| PERCEPTIVE ADVISORS LLC |
13D/G
13F
Company
|
10%
Reported 13D/G
· 30 Jun 2026
|
$144,624,915
1,489,443 shares
|
+$2,751,620 | 30 Jun 2026 |
| VIKING GLOBAL INVESTORS LP |
13D/G
3/4/5
13F
10%+ Owner · Company
|
9.3%
Reported 13D/G
· 30 Jun 2026
|
$134,349,599
1,383,621 shares
|
-$7,574,965 | 30 Jun 2026 |
| MORGAN STANLEY |
13F
13D/G
Company
|
7.9%
Reported 13D/G
· 31 Dec 2025
|
$123,937,898
1,308,051 shares
|
— | 30 Jun 2026 |
| Jon Faiz Kayyem |
3/4/5
13D/G
Director
|
7.9%
Reported 13D/G
· 03 Jun 2024
|
$104,046,248
1,084,046 shares
mixed-class rows
|
+$1,567,580 | 23 Sep 2026 |
| Mark P. Lappe |
13D/G
Mark Lappe
|
6.4%
Reported 13D/G
· 12 Sep 2024
|
$11,086,448
925,413 shares
|
$0 | 12 Sep 2024 |
| BANK OF AMERICA CORP /DE/ |
13D/G
13F
Company
|
5.9%
Reported 13D/G
· 30 Jun 2026
|
$83,245,578
857,318 shares
|
$0 | 30 Jun 2026 |
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 Q3 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
16
Shares
32,951
Rows available
16
| 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 Q3 2026 vs Q2 2026 Across Filers
Q2 2026 holders
161
Q3 2026 holders
16
Holder diff
-145
| Investor | Q2 2026 Shares | Q3 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q3 2026 value | Value change | Value Chg % |
|---|