Comparable stake leader
BML Investment Partners, L.P.
SEC ownership of Instil Bio, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001789769.
Disclosed value leader
Curative Ventures V LLC
Comparable rows
34/45
Latest evidence
11 Jun 2026
- Public ticker
- TIL on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BML Investment Partners, L.P.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
34 of 45
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BML Investment Partners, L.P.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
11 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001789769
- Issuer location
- Dallas, TX
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Instil Bio, Inc. (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
BML Investment Partners, ...
Disclosed value leader
Curative Ventures V LLC
Comparable rows
34/45
Latest evidence
11 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 9.5%
11 rows are not safely comparable across share classes.
13D/G row: BML Investment Partners, L.P.
Showing 1-8 of 45 holder rows.
Quick read
BML Investment Partners, L.P. leads the comparable SEC ownership view at 9.5%.
34 of 45 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 BML Investment Partners, L.P.'s linked filing trail.
Comparable ownership
Top 5
BML Investment Partners, L.P.
9.5%
Vivo Capital IX, LLC
4.5%
Curative Ventures V LLC
28%
BML Capital Management, LLC
9.9%
CPMG Inc
6.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 45 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BML Investment Partners, L.P. |
13D/G
|
9.5%
|
—
645,600 shares
|
+$2,261,600 | 31 Dec 2025 |
| Vivo Capital IX, LLC |
13D/G
|
4.5%
|
$7,169,276
292,743 shares
|
$0 | 30 Jun 2025 |
| Curative Ventures V LLC |
13F
Company
|
28%
|
$15,647,793
1,899,004 shares
|
— | 31 Mar 2026 |
| BML Capital Management, LLC |
13F
Company
|
9.9%
|
$5,319,744
645,600 shares
|
— | 31 Mar 2026 |
| CPMG Inc |
13F
Company
|
6.3%
|
$3,385,997
410,922 shares
|
— | 31 Mar 2026 |
| Vivo Capital, LLC |
13F
Company
|
4.5%
|
$2,412,202
292,743 shares
|
— | 31 Mar 2026 |
| Kalehua Capital Management LLC |
13F
Company
|
2.8%
|
$1,508,167
183,030 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
2.7%
|
$1,438,564
174,583 shares
|
— | 31 Mar 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.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$701,667.
Buys
$0
Insiders: 0
Sells
$701,667
Insiders: 1
Net
-$701,667
Shares: -30,000
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 30,000
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 30,000 | $0 | $701,667 | -$701,667 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-11 of 11 reporting-owner rows connected to Instil Bio, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
11
Largest Forms 3/4/5 holder
Sandeep Laumas
Net 12M change
-$701,667
Latest report
11 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Sandeep Laumas | CFO and CBO | $0 | -$701,667 | -100% | Mixed | 10 Sep 2025 |
| George Matcham | Director | Mixed | 11 Jun 2026 | |||
| Gwendolyn Binder | Director | Mixed | 11 Jun 2026 | |||
| R. Kent Jr. McGaughy | Director | Mixed | 11 Jun 2026 | |||
| Vijay Chiruvolu | Chief Technical Officer | Mixed | 20 May 2022 | |||
| Jack Nielsen | Director | Mixed | 14 Jun 2023 | |||
| Zachary Roberts | Chief Medical Officer | Mixed | 04 Mar 2022 | |||
| Bronson Crouch | CEO and Chairman, Director, 10%+ Owner | Mixed | 25 Apr 2025 | |||
| Sumita Ray | Chief Legal and Admin Officer | Mixed | 08 Jan 2023 | |||
| Timothy L. Moore | Chief Operating Officer | Mixed | 06 Sep 2022 | |||
| Neil W. Gibson | Director | Mixed | 11 Jun 2026 |
Recent insider transactions for Instil Bio, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| R. Kent Jr. McGaughy | TIL | Stock Option (Right to Buy) | Award | 6,500 | 6,500 | 11 Jun 2026 | Direct | |||
| George Matcham | TIL | Stock Option (Right to Buy) | Award | 6,500 | 6,500 | 11 Jun 2026 | Direct | |||
| Neil W. Gibson | TIL | Stock Option (Right to Buy) | Award | 0 | 6,500 | 11 Jun 2026 | Direct | |||
| Gwendolyn Binder | TIL | Stock Option (Right to Buy) | Award | 6,500 | 6,500 | 11 Jun 2026 | Direct | |||
| Sandeep Laumas | TIL | Common Stock | Sale | -100% | $701,667 | $23.39 | -30,000 | 0 | 10 Sep 2025 | Direct |
| Sandeep Laumas | TIL | Common Stock | Options Exercise | 30,000 | 30,000 | 10 Sep 2025 | Direct | |||
| Sandeep Laumas | TIL | Employee Stock Option (right to buy) | Options Exercise | -63.8% | -30,000 | 17,000 | 10 Sep 2025 | Direct |
* marks a reported price that did not pass the local price check.