Position in SION
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$285,713,378
+$25,330,352 QoQ
Shares Held
6,494,962
0.0% QoQ
Ownership
14.4%
of shares outstanding
% of Portfolio
6.50%
of 13F equity value
Holder Rank
#2
of 146 holders
Holding Since
Mar 2025
6 quarters on record
Voting authority
Sole 0%
Shared 100%
None 0%
Common Shares in SION Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026TPG GP A, LLC holds $564,920,037 across 10 Biotechnology names. SION ranks #1 (50.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | SION |
Sionna Therapeutics, Inc.
This page
|
6,494,962 | $285,713,378 | |
| 2 | BCAX |
Bicara Therapeutics Inc.
|
3,010,425 | $89,379,518 | |
| 3 | ODTX |
Odyssey Therapeutics, Inc.
|
3,690,146 | $69,042,631 | |
| 4 | ACHV |
Achieve Life Sciences, Inc.
|
6,877,580 | $44,910,597 | |
| 5 | ALLO |
Allogene Therapeutics, Inc.
|
18,716,306 | $38,929,916 | |
| 6 | AVLN |
Avalyn Pharma Inc.
|
773,069 | $25,449,431 | |
| 7 | RLYB |
Rallybio Corp
|
378,551 | $6,056,816 | |
| 8 | APGE |
Apogee Therapeutics, Inc.
|
25,000 | $3,318,250 |
All Filings in SION
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6 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $285,713,378 | 6,494,962 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $260,383,026 | 6,494,962 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $277,487,736 | 6,744,962 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $198,369,332 | 6,744,962 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $117,025,090 | 6,744,962 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $69,924,702 | 6,684,962 | Shares | Defined | 2025-05-15 | |
| No filing history on record for this holder in this stock. | ||||||