ACELYRIN, Inc.
Total Trades
15
Buys
9
Sells
6
Largest Trade
$1M+
Insiders
12
Institutional Funds
2
Inst. Value
<$1K
Activist Filings
32
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Kim Mina | CEO | SELL | $15K–$50K | 18K | $2.74 | Mar 19, 2025 |
| Murugan Amar | Chief Legal Officer | SELL | $1K–$15K | 4K | $2.74 | Mar 19, 2025 |
| Mpofu Shephard | Chief Medical Offi… | SELL | $1K–$15K | 3K | $2.74 | Mar 19, 2025 |
| Lin Shao-Lee | CEO | SELL | $50K–$100K | 10K | $6.63 | Apr 3, 2024 |
| Lin Shao-Lee | CEO | SELL | $100K–$500K | 16K | $7.60 | Feb 23, 2024 |
| Lin Shao-Lee | CEO | SELL | $50K–$100K | 11K | $7.41 | Jan 4, 2024 |
| Westlake BioPartners Fund II, L.P. | 10% Owner | BUY | $1M+ | 1.3M | $18.00 | May 12, 2023 |
| SEIDENBERG BETH C | Director | BUY | $1M+ | 1.3M | $18.00 | May 12, 2023 |
| Svoronos Dawn | Director | BUY | $100K–$500K | 15K | $18.00 | May 12, 2023 |
| Gosebruch Henry O | Director | BUY | $500K+ | 50K | $18.00 | May 12, 2023 |
| Becker Daniel J. | Director | BUY | $50K–$100K | 3K | $18.00 | May 12, 2023 |
| Oyston Ronald | Chief People Officer | BUY | $15K–$50K | 1K | $18.00 | May 12, 2023 |
| Kim Mina | Chief Legal & Admi… | BUY | $50K–$100K | 5K | $18.00 | May 12, 2023 |
| Peloso Paul | Chief Medical Offi… | BUY | $100K–$500K | 6K | $18.00 | May 12, 2023 |
| Dier Mardi | CFO and CBO | BUY | $100K–$500K | 7K | $18.00 | May 12, 2023 |
Institutional Ownership
13F filings as of Jun 30, 2025 · 2 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| OSAIC HOLDINGS, INC. | 282 | <$1K | SH |
| IFP Advisors, Inc | 3 | <$1K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13D/A · May 27, 2025
0.0%
0 shares
SC 13D/A · May 23, 2025
0.0%
0 shares
AyurMaya Capital Management Company, LP
SC 13G/A · May 23, 2025
0.0%
0 shares
Access Industries Management, LLC
SC 13D/A · May 23, 2025
0.0%
0 shares
Madison Avenue International LP
SC 13D · May 1, 2025
5.1%
5.1M shares
SC 13D/A · Apr 29, 2025
0.0%
0 shares
SC 13D/A · Mar 12, 2025
8.8%
8.8M shares
T. Rowe Price Investment Management, Inc.
SC 13G/A · Mar 7, 2025
4.6%
4.7M shares
SC 13D · Mar 6, 2025
5.4%
5.4M shares
SC 13D/A · Feb 28, 2025
7.3%
7.3M shares
SC 13D · Feb 20, 2025
5.3%
5.3M shares
SC 13G/A · Feb 14, 2025
4.2%
4.2M shares
T. Rowe Price Investment Management, Inc.
SC 13G/A · Feb 14, 2025
12.8%
12.9M shares
Access Industries Management, LLC
SC 13D/A · Feb 10, 2025
5.1%
5.1M shares
Integrated Core Strategies (US) LLC
SC 13G/A · Feb 10, 2025
4.7%
4.7M shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G/A · Nov 14, 2024
10.5%
10.4M shares
SC 13G/A · Nov 12, 2024
4.1%
4.1M shares
SC 13G · Nov 8, 2024
6.0%
6.0M shares
SC 13G · Nov 4, 2024
4.1%
4.1M shares
SC 13G · Oct 24, 2024
6.0%
6.0M shares
T. Rowe Price Investment Management, Inc. 85-4328500
SC 13G · Sep 10, 2024
10.5%
10.5M shares
SC 13G/A · Aug 12, 2024
3.9%
3.9M shares
Integrated Core Strategies (US) LLC
SC 13G · May 20, 2024
5.1%
5.0M shares
Integrated Core Strategies (US) LLC
SC 13G · Apr 19, 2024
4.9%
4.8M shares
AyurMaya Capital Management Company, LP
SC 13G · Mar 28, 2024
9.6%
9.3M shares
SC 13G/A · Feb 14, 2024
6.7%
6 shares
The Vanguard Group - 23-1945930
SC 13G · Feb 13, 2024
6.3%
6.2M shares
SC 13G · Oct 13, 2023
11.1%
9.3M shares
SC 13G · Oct 10, 2023
11.1%
9.3M shares
SC 13G · May 19, 2023
6.1%
6 shares
Access Industries Management, LLC
SC 13D · May 19, 2023
5.2%
5.1M shares
Westlake BioPartners Fund II, L.P. (“Westlake Fund II”)
SC 13D · May 19, 2023
9.0%
9.8M shares