Sionna Therapeutics, Inc. - Common Stock SH (SION)
CUSIP: 829401108
Q3 2025 13F Holders as of 30 Sep 2025
- Type / Class
- Equity / Common Stock SH
- Shares outstanding
- 44,894,622
- Total 13F shares
- 42,840,564
- Share change
- -608,448
- Total reported value
- $1,259,943,482
- Price per share
- $29.41
- Number of holders
- 78
- Value change
- -$14,718,322
- Number of buys
- 38
- Number of sells
- 25
Quarterly Holders Quick Answers
What is CUSIP 829401108?
CUSIP 829401108 identifies SION - Sionna Therapeutics, Inc. - Common Stock SH in SEC institutional holdings data.
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Recent filing periods for CUSIP 829401108:
Top shareholders of SION - Sionna Therapeutics, Inc. - Common Stock SH (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. |
13F
|
Company |
23%
|
10,445,322
|
$181,226,337 | — | 30 Jun 2025 | |
| TPG GP A, LLC |
13F
13D/G
|
Company |
15%
from 13D/G
|
6,744,962
|
$117,025,091 | — | 30 Jun 2025 | |
| ORBIMED ADVISORS LLC |
13F
|
Company |
8.3%
|
3,704,959
|
$64,281,039 | — | 30 Jun 2025 | |
| Atlas Venture Life Science Advisors, LLC |
13F
|
Company |
8.2%
|
3,694,020
|
$64,091,247 | — | 30 Jun 2025 | |
| JPMORGAN CHASE & CO |
13D/G
13F
|
Company |
4.4%
|
1,980,626
|
$58,251,993 | -$7,075,145 | 30 Sep 2025 | |
| VIKING GLOBAL INVESTORS LP |
13F
13D/G
|
Company |
6.7%
from 13D/G
|
3,195,181
|
$55,436,390 | — | 30 Jun 2025 | |
| Enavate Sciences GP, LLC |
13F
13D/G
|
Company |
5.6%
from 13D/G
|
2,478,030
|
$42,993,821 | — | 30 Jun 2025 | |
| PERCEPTIVE ADVISORS LLC |
13F
|
Company |
2.7%
|
1,216,045
|
$21,098,381 | — | 30 Jun 2025 | |
| BRAIDWELL LP |
13F
|
Company |
2.4%
|
1,081,855
|
$18,770,184 | — | 30 Jun 2025 | |
| DEERFIELD MANAGEMENT COMPANY, L.P. |
13F
|
Company |
2.2%
|
970,590
|
$16,839,737 | — | 30 Jun 2025 | |
| Aberdeen Group plc |
13F
|
Company |
2.1%
|
950,547
|
$16,491,990 | — | 30 Jun 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
1.9%
|
861,238
|
$14,943,000 | — | 30 Jun 2025 | |
| JENNISON ASSOCIATES LLC |
13F
|
Company |
1.7%
|
752,800
|
$13,061,080 | — | 30 Jun 2025 | |
| BlackRock, Inc. |
13F
|
Company |
1.4%
|
637,104
|
$11,053,754 | — | 30 Jun 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
1.4%
|
630,351
|
$10,936,590 | — | 30 Jun 2025 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
1.1%
|
500,023
|
$8,675,399 | — | 30 Jun 2025 | |
| BAKER BROS. ADVISORS LP |
13F
|
Company |
0.89%
|
400,000
|
$6,940,000 | — | 30 Jun 2025 | |
| Soleus Capital Management, L.P. |
13F
|
Company |
0.84%
|
376,000
|
$6,523,600 | — | 30 Jun 2025 | |
| Siren, L.L.C. |
13F
|
Individual |
0.72%
|
325,000
|
$5,638,750 | — | 30 Jun 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.64%
|
289,275
|
$5,019,818 | — | 30 Jun 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.53%
|
236,813
|
$4,108,706 | — | 30 Jun 2025 | |
| Alyeska Investment Group, L.P. |
13F
|
Company |
0.41%
|
186,222
|
$3,230,952 | — | 30 Jun 2025 | |
| SILVERARC CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.41%
|
186,015
|
$3,227,360 | — | 30 Jun 2025 | |
| PRUDENTIAL FINANCIAL INC |
13F
|
Company |
0.3%
|
135,185
|
$2,345,460 | — | 30 Jun 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.29%
|
129,912
|
$2,253,973 | — | 30 Jun 2025 | |
| STATE STREET CORP |
13F
|
Company |
0.28%
|
124,518
|
$2,160,387 | — | 30 Jun 2025 | |
| Rock Springs Capital Management LP |
13F
|
Company |
0.22%
|
99,429
|
$1,725,093 | — | 30 Jun 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.21%
|
92,832
|
$1,610,635 | — | 30 Jun 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.2%
|
91,890
|
$1,594,291 | — | 30 Jun 2025 | |
| DRIEHAUS CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.19%
|
83,850
|
$1,454,798 | — | 30 Jun 2025 | |
| Woodline Partners LP |
13F
|
Company |
0.18%
|
80,000
|
$1,388,000 | — | 30 Jun 2025 | |
| UBS Group AG |
13F
|
Company |
0.11%
|
51,367
|
$891,217 | — | 30 Jun 2025 | |
| Holocene Advisors, LP |
13F
|
Company |
0.11%
|
50,000
|
$867,500 | — | 30 Jun 2025 | |
| TD ASSET MANAGEMENT INC |
13F
|
Company |
0.11%
|
49,966
|
$866,910 | — | 30 Jun 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.1%
|
46,048
|
$798,933 | — | 30 Jun 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.1%
|
44,018
|
$763,712 | — | 30 Jun 2025 | |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE |
13F
|
Company |
0.08%
|
38,038
|
$659,959 | — | 30 Jun 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
0.06%
|
26,000
|
$451,100 | — | 30 Jun 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.05%
|
24,131
|
$418,673 | — | 30 Jun 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.05%
|
23,022
|
$399,431 | — | 30 Jun 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.04%
|
17,670
|
$306,568 | — | 30 Jun 2025 | |
| BANTAMAC CAPITAL, LLC |
13F
|
Company |
0.04%
|
16,975
|
$294,516 | — | 30 Jun 2025 | |
| POLEN CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.04%
|
16,975
|
$294,516 | — | 30 Jun 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.04%
|
16,040
|
$278,294 | — | 30 Jun 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.03%
|
14,834
|
$257,370 | — | 30 Jun 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.03%
|
14,034
|
$243,490 | — | 30 Jun 2025 | |
| COMMONWEALTH EQUITY SERVICES, LLC |
13F
|
Company |
0.03%
|
14,017
|
$243,000 | — | 30 Jun 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.02%
|
9,596
|
$166,491 | — | 30 Jun 2025 | |
| MetLife Investment Management, LLC |
13F
|
Company |
0.02%
|
8,033
|
$139,373 | — | 30 Jun 2025 | |
| NEW YORK STATE COMMON RETIREMENT FUND |
13F
|
Company |
0.02%
|
6,800
|
$117,980 | — | 30 Jun 2025 |
Institutional Holders of Sionna Therapeutics, Inc. - Common Stock SH (SION) as of Q3 2025
As of 30 Sep 2025,
Sionna Therapeutics, Inc. - Common Stock SH (SION) was held by
78 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
42,840,564 shares.
The largest 10 holders included
RA CAPITAL MANAGEMENT, L.P., TPG GP A, LLC, ORBIMED ADVISORS LLC, Atlas Venture Life Science Advisors, LLC, VIKING GLOBAL INVESTORS LP, ENAVATE SCIENCES GP, LLC, JPMORGAN CHASE & CO, PERCEPTIVE ADVISORS LLC, VANGUARD GROUP INC, and JENNISON ASSOCIATES LLC.
This page lists
78
institutional shareholders reporting positions in this security
for the Q3 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
65
Q3 2025 holders
78
Holder diff
13
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 Value $ | Q3 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.