Klaviyo, Inc.
US ˙ NYSE ˙ US49845K1016

Introduction

This page provides a comprehensive analysis of the known insider trading history of Jeff Fagnan. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate Jeff Fagnan has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:KVYO / Klaviyo, Inc. 10% Owner 3,900
US:CBLK / Carbon Black, Inc. Director 0
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Jeff Fagnan. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Purchases KVYO / Klaviyo, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in KVYO / Klaviyo, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
2025-04-09 KVYO Fagnan Jeff 3,900 25.7700 3,900 25.7700 100,503 34 37.5000 45,747 45.52
2024-11-13 KVYO Fagnan Jeff 13,515 37.1381 13,515 37.1381 501,921
2024-08-01 KVYO Fagnan Jeff 9,485 26.4336 9,485 26.4336 250,723
2024-08-01 KVYO Fagnan Jeff 9,485 26.4336 9,485 26.4336 250,723

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

KVYO / Klaviyo, Inc. Insider Trades
Insider Sales KVYO / Klaviyo, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in KVYO / Klaviyo, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
2023-10-23 KVYO Accomplice Fund I, L.P. 637,049 28.3218 637,049 28.3218 18,042,374 198 21.5300 -4,326,709 -23.98
2023-09-22 KVYO Accomplice Fund I, L.P. 1,770,049 28.3218 1,770,049 28.3218 50,130,974

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

KVYO / Klaviyo, Inc. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Jeff Fagnan as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2025-04-10 2025-04-09 4 KVYO Klaviyo, Inc.
Series A Common Stock
P - Purchase 3,900 3,900 25.77 100,503 100,503
2024-11-14 2024-11-13 4 KVYO Klaviyo, Inc.
Series A Common Stock
P - Purchase 13,515 23,000 142.49 37.14 501,921 854,176
2024-11-14 2024-08-12 4 KVYO Klaviyo, Inc.
Series A Common Stock
L - Other 2 44 4.48 31.80 60 1,400
2024-11-14 2024-08-09 4 KVYO Klaviyo, Inc.
Series A Common Stock
L - Other 5 42 13.47 29.99 150 1,264
2024-09-05 2024-08-01 4/A KVYO Klaviyo, Inc.
Series A Common Stock
P - Purchase 9,485 9,485 26.43 250,723 250,723
2024-09-05 2024-07-16 4/A KVYO Klaviyo, Inc.
Series A Common Stock
L - Other 8 37 27.34 25.08 200 931
2024-09-05 2024-07-01 4/A KVYO Klaviyo, Inc.
Series A Common Stock
L - Other 8 29 37.92 24.81 199 724
2024-09-05 2024-06-17 4/A KVYO Klaviyo, Inc.
Series A Common Stock
L - Other 21 21 22.51 476 476
2024-08-02 2024-08-01 4 KVYO Klaviyo, Inc.
Series A Common Stock
P - Purchase 9,485 9,485 26.43 250,723 250,723
2023-10-23 2023-10-23 4 KVYO Klaviyo, Inc.
Series A Common Stock
S - Sale -637,049 26,720 -95.97 28.32 -18,042,374 756,758
2023-09-22 2023-09-22 4 KVYO Klaviyo, Inc.
Series A Common Stock
S - Sale -1,770,049 663,769 -72.73 28.32 -50,130,974 18,799,133
2023-09-20 3 KVYO Klaviyo, Inc.
Series A Common Stock
2,433,818
2019-10-08 2019-10-08 4 CBLK Carbon Black, Inc.
Common Stock
D - Sale to Issuer -174,500 0 -100.00
2019-10-08 2019-10-08 4 CBLK Carbon Black, Inc.
Common Stock
D - Sale to Issuer -21,079 0 -100.00
2019-10-08 2019-10-08 4 CBLK Carbon Black, Inc.
Common Stock
D - Sale to Issuer -181,273 0 -100.00
2019-10-08 2019-10-08 4 CBLK Carbon Black, Inc.
Common Stock
D - Sale to Issuer -171,480 0 -100.00
2019-10-08 2019-10-08 4 CBLK Carbon Black, Inc.
Common Stock
D - Sale to Issuer -286,392 0 -100.00
2019-10-08 2019-10-08 4 CBLK Carbon Black, Inc.
Common Stock
D - Sale to Issuer -9,365,231 0 -100.00
2019-10-08 2019-10-08 4 CBLK Carbon Black, Inc.
Common Stock
D - Sale to Issuer -15,382 0 -100.00
2019-06-14 2019-06-13 4 CBLK Carbon Black, Inc.
Common Stock
A - Award 9,375 15,382 156.07
2018-08-06 2018-05-09 4 CBLK Carbon Black, Inc.
Common Stock
A - Award 6,007 6,007
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series F Convertible Preferred Stock
C - Conversion -42,158 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series E Convertible Preferred Stock
C - Conversion -362,548 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series E Convertible Preferred Stock
C - Conversion -56,594 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series E Convertible Preferred Stock
C - Conversion -94,518 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series E Convertible Preferred Stock
C - Conversion -3,090,783 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series D Convertible Preferred Stock
C - Conversion -23,131 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series D Convertible Preferred Stock
C - Conversion -38,631 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series D Convertible Preferred Stock
C - Conversion -1,263,264 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series C Convertible Preferred Stock
C - Conversion -83,217 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series C Convertible Preferred Stock
C - Conversion -138,981 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series C Convertible Preferred Stock
C - Conversion -4,544,751 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series B Convertible Preferred Stock
C - Conversion -135,475 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series B Convertible Preferred Stock
C - Conversion -226,258 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Series B Convertible Preferred Stock
C - Conversion -7,398,761 0 -100.00
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Common Stock
C - Conversion 21,079 21,079
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Common Stock
C - Conversion 181,273 181,273
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Common Stock
C - Conversion 149,207 171,480 669.90
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Common Stock
C - Conversion 249,193 286,392 669.89
2018-05-10 2018-05-08 4 CBLK Carbon Black, Inc.
Common Stock
C - Conversion 8,148,778 9,365,231 669.88
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
2,666,878
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
1,487,624
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
1,472,698
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
1,624,925
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
2,666,878
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
1,487,624
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
1,472,698
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
1,624,925
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
2,666,878
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
1,487,624
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
1,472,698
2018-05-03 3 CBLK Carbon Black, Inc.
Common Stock
1,624,925
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)