Summit Partners Growth Equity Fund IX-B, L.P.
- SEC CIK
- 0001634426
In the past year, 1 open-market sale filing worth $88.5M and no purchases.
Current role at each company
- KVYO Klaviyo, Inc.10% Owneras of Aug 13, 2026
- LFST LifeStance Health Group, Inc.Other: shareholderas of Aug 20, 2025
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- $88.5M
- 1 filing
- Net
- −$88.5M
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Summit Partners Growth Equity Fund IX-B, L.P. as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
KVYO Klaviyo, Inc.
10% Owner25 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 13, 2026 (view filing)4:30 PM ET | Aug 11 | 2 days | Summit Partners L P and 5 others10% Owner | SSaleSeries A Common Stock, par value $0.001 per share | −5.00M | $17.71 | −$88.5M | −100.0%0 after | |
| Sep 10, 2025 (view filing)4:15 PM ET | Sep 8 | 2 days | Summit Partners L P and 5 others10% Owner | SSaleSeries A Common Stock, par value $0.001 per share | −4.00M | $31.87 | −$127.5M | −100.0%0 after | |
| Aug 27, 2025 (view filing)4:05 PM ET | Aug 25 | 2 days | Summit Partners L P and 5 others10% Owner | SSaleSeries A Common Stock, par value $0.001 per share | −975.0K | $30.01 | −$29.3M | −100.0%0 after | |
| Aug 15, 2025 (view filing)4:17 PM ET | Aug 13 | 2 days | Summit Partners L P and 5 others10% Owner | SSaleSeries A Common Stock, par value $0.001 per share | −6.50M | $30.01 | −$195.1M | −92.9%500.0K after | |
| Jun 5, 2025 (view filing)7:13 PM ET | Jun 4 | 1 day | Summit Partners L P and 5 others10% Owner | SSaleSeries A Common Stock, par value $0.001 per share | −4.00M | $33.35 | −$133.4M | −100.0%0 after | |
| May 20, 2025 (view filing)6:25 PM ET | May 19 | 1 day | Summit Partners L P and 5 others10% Owner | SSaleSeries A Common Stock, par value $0.001 per share | −4.00M | $33.00 | −$132.0M | −100.0%0 after | |
| Mar 17, 2025 (view filing)5:11 PM ET | Mar 14 | 3 days | Summit Partners L P and 5 others10% Owner | SSaleSeries A Common Stock, par value $0.001 per share | −2.00M | $32.44 | −$64.9M | −100.0%0 after | |
| Dec 11, 2024 (view filing)4:57 PM ET | Dec 9 | 2 days | Summit Partners L P and 5 others10% Owner | SSaleSeries A Common Stock, par value $0.001 per share | −2.10M | $39.15 | −$82.2M | −100.0%0 after | |
| Nov 18, 2024 (view filing)4:25 PM ET | Nov 14 | 4 days | Summit Partners L P and 5 others10% Owner | SSaleSeries A Common Stock, par value $0.001 per share | −3.15M | $36.20 | −$114.1M | −90.1%346.7K after | |
| Sep 17, 2024 (view filing)4:23 PM ET | Sep 13 | 4 days | Summit Partners L P and 5 others10% Owner | SSaleSeries A Common Stock, par value $0.001 per share | −113.6K | $31.47 | −$3.57M | −100.0%0 after |
LFST LifeStance Health Group, Inc.
Other: shareholder2 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 20, 2025 (view filing)4:34 PM ET | Aug 18 | 2 days | Summit Partners L P and 5 others10% Owner | SSale | −8.41M | $5.07 | −$42.6M | −20.1%33.5M after | Duplicate filing |
| May 29, 2024 (view filing)5:19 PM ET | May 24 | 5 days | Summit Partners Growth Equity Fund IX-A, L.P. and 4 others10% Owner | SSale | −3.80M | $5.89 | −$22.4M | −8.3%41.9M after | Duplicate filing |