Chow Thomas C. - Insider Trading Tracker

PubMatic, Inc.

US ˙ NasdaqGM ˙ US74467Q1031

Introduction

This page provides a comprehensive analysis of the known insider trading history of Chow Thomas C.. 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.

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Companies with Reported Insider Positions

The SEC filings indicate Chow Thomas C. has reported holdings or trades in the following companies:

Security	Title	Latest Reported Holdings
US:PUBM / PubMatic, Inc.	General Counsel and Secretary	4,910

How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Chow Thomas C.. 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 PUBM / PubMatic, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in PUBM / PubMatic, 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 (%)
There are no known unplanned open-market trades for this insider and security combination

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

Insider Sales PUBM / PubMatic, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in PUBM / PubMatic, 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 (%)
2022-07-05	PUBM	Chow Thomas C.	461	15.2817	461	15.2817	7,045	303	11.8700	-1,572	-22.32
2022-07-01	PUBM	Chow Thomas C.	294	15.8676	294	15.8676	4,665
2022-06-01	PUBM	Chow Thomas C.	1,250	20.5000	1,250	20.5000	25,625
2022-06-01	PUBM	Chow Thomas C.	5,756	20.2795	5,756	20.2795	116,729
2022-05-17	PUBM	Chow Thomas C.	10,000	21.7440	10,000	21.7440	217,440
2022-04-04	PUBM	Chow Thomas C.	560	27.5900	560	27.5900	15,450
2022-04-04	PUBM	Chow Thomas C.	306	28.0100	306	28.0100	8,571
2022-03-04	PUBM	Chow Thomas C.	5,000	21.8200	5,000	21.8200	109,100
2021-10-01	PUBM	Chow Thomas C.	295	25.4700	295	25.4700	7,514

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

Insider Trading History

This table shows the complete list of insider trades made by Chow Thomas C. 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
2022-07-07	2022-07-05	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale		-461	4,910	-8.58	15.28	-7,045	75,033
2022-07-06	2022-07-01	4	PUBM	PubMatic, Inc. Class A Common Stock	M - Exercise		2,060	5,371	62.22
2022-07-05	2022-07-01	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale		-294	3,311	-8.16	15.87	-4,665	52,538
2022-07-05	2022-06-30	4	PUBM	PubMatic, Inc. Class A Common Stock	M - Exercise		804	3,605	28.70
2022-06-03	2022-06-01	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale		-5,756	2,801	-67.27	20.28	-116,729	56,803
2022-06-03	2022-06-01	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale		-1,250	8,557	-12.75	20.50	-25,625	175,418
2022-06-03	2022-06-01	4	PUBM	PubMatic, Inc. Class A Common Stock	M - Exercise		4,166	9,807	73.85	2.16	8,999	21,183
2022-06-03	2022-06-01	4	PUBM	PubMatic, Inc. Class A Common Stock	M - Exercise		944	5,641	20.10	2.97	2,804	16,754
2022-06-03	2022-06-01	4	PUBM	PubMatic, Inc. Class A Common Stock	M - Exercise		646	4,697	15.95	3.89	2,513	18,271
2022-05-19	2022-05-17	4	PUBM	PubMatic, Inc. Class B Common Stock	C - Conversion		-10,000	0	-100.00
2022-05-19	2022-05-17	4	PUBM	PubMatic, Inc. Class B Common Stock	M - Exercise		10,000	10,000
2022-05-19	2022-05-17	4	PUBM	PubMatic, Inc. Stock Option (Right to buy Class B Common Stock)	M - Exercise		-10,000	9,902	-50.25
2022-05-19	2022-05-17	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale		-10,000	2,801	-78.12	21.74	-217,440	60,905
2022-05-19	2022-05-17	4	PUBM	PubMatic, Inc. Class A Common Stock	C - Conversion		10,000	12,801	357.02
2022-04-04	2022-04-04	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale		-306	2,801	-9.85	28.01	-8,571	78,456
2022-04-04	2022-04-04	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale		-560	3,107	-15.27	27.59	-15,450	85,722
2022-04-04	2022-04-01	4	PUBM	PubMatic, Inc. Restricted Stock Unit	M - Exercise		-2,060	30,901	-6.25
2022-04-04	2022-04-01	4	PUBM	PubMatic, Inc. Class A Common Stock	M - Exercise		2,060	3,667	128.19
2022-04-04	2022-03-31	4	PUBM	PubMatic, Inc. Restricted Stock Unit	M - Exercise		-803	8,843	-8.32
2022-04-04	2022-03-31	4	PUBM	PubMatic, Inc. Class A Common Stock	M - Exercise		803	1,607	99.88
2022-03-08	2022-03-04	4	PUBM	PubMatic, Inc. Class B Common Stock	C - Conversion		-5,000	0	-100.00
2022-03-08	2022-03-04	4	PUBM	PubMatic, Inc. Class B Common Stock	M - Exercise		5,000	5,000
2022-03-08	2022-03-04	4	PUBM	PubMatic, Inc. Stock Option (Right to buy Class B Common Stock)	M - Exercise		-3,125	27,083	-10.34
2022-03-08	2022-03-04	4	PUBM	PubMatic, Inc. Stock Option (Right to buy Class B Common Stock)	M - Exercise		-1,875	19,902	-8.61
2022-03-08	2022-03-04	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale		-5,000	804	-86.15	21.82	-109,100	17,543
2022-03-08	2022-03-04	4	PUBM	PubMatic, Inc. Class A Common Stock	M - Exercise		5,000	5,804	621.89
2022-02-07	2022-02-04	4	PUBM	PubMatic, Inc. Stock Option (Right to buy Class A Common Stock)	A - Award		21,389	21,389
2022-02-07	2022-02-04	4	PUBM	PubMatic, Inc. Restricted Stock Unit	A - Award		32,961	32,961
2022-01-04	2021-12-31	4	PUBM	PubMatic, Inc. Restricted Stock Unit	M - Exercise		-804	9,646	-7.69
2022-01-04	2021-12-31	4	PUBM	PubMatic, Inc. Class A Common Stock	M - Exercise		804	804
2021-12-03	2021-12-02	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-634	0	-100.00	37.57	-23,819
2021-11-30	2021-11-26	4	PUBM	PubMatic, Inc. Class B Common Stock	C - Conversion		-66,882	0	-100.00
2021-11-30	2021-11-26	4	PUBM	PubMatic, Inc. Class B Common Stock	M - Exercise		66,882	66,882
2021-11-30	2021-11-26	4	PUBM	PubMatic, Inc. Stock Option (Right to buy Class B Common Stock)	M - Exercise		-18,223	21,777	-45.56
2021-11-30	2021-11-26	4	PUBM	PubMatic, Inc. Stock Option (Right to buy Class B Common Stock)	M - Exercise		-38,867	16,133	-70.67
2021-11-30	2021-11-26	4	PUBM	PubMatic, Inc. Stock Option (Right to buy Class B Common Stock)	M - Exercise		-9,792	30,208	-24.48
2021-11-30	2021-11-26	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-2,600	0	-100.00	39.06	-101,556
2021-11-30	2021-11-26	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-25,678	2,600	-90.81	38.26	-982,440	99,476
2021-11-30	2021-11-26	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-38,604	28,278	-57.72	37.45	-1,445,720	1,059,011
2021-11-30	2021-11-26	4	PUBM	PubMatic, Inc. Class A Common Stock	C - Conversion		66,882	66,882
2021-11-12	2021-11-10	4	PUBM	PubMatic, Inc. Class B Common Stock	C - Conversion		-10,000	0	-100.00
2021-11-12	2021-11-10	4	PUBM	PubMatic, Inc. Class B Common Stock	M - Exercise		10,000	10,000
2021-11-12	2021-11-10	4	PUBM	PubMatic, Inc. Stock Option (Right to buy Class B Common Stock)	M - Exercise		-10,000	40,000	-20.00
2021-11-12	2021-11-10	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-8,700	0	-100.00	39.59	-344,433
2021-11-12	2021-11-10	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-1,300	8,700	-13.00	38.46	-49,998	334,602
2021-11-12	2021-11-10	4	PUBM	PubMatic, Inc. Class A Common Stock	C - Conversion		10,000	10,000
2021-10-04	2021-10-04	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-509	0	-100.00	25.29	-12,873
2021-10-04	2021-10-01	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale		-295	509	-36.69	25.47	-7,514	12,964
2021-10-04	2021-09-30	4	PUBM	PubMatic, Inc. Restricted Stock Unit	M - Exercise		-804	10,450	-7.14
2021-10-04	2021-09-30	4	PUBM	PubMatic, Inc. Class A Common Stock	M - Exercise		804	804
2021-07-02	2021-07-02	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-978	0	-100.00	34.44	-33,682
2021-07-02	2021-07-02	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-630	978	-39.18	34.97	-22,031	34,201
2021-07-02	2021-07-01	4	PUBM	PubMatic, Inc. Class B Common Stock	C - Conversion		-5,000	0	-100.00
2021-07-02	2021-07-01	4	PUBM	PubMatic, Inc. Class B Common Stock	M - Exercise		5,000	5,000
2021-07-02	2021-07-01	4	PUBM	PubMatic, Inc. Stock Option (Right to buy Class B Common Stock)	M - Exercise		-5,000	55,000	-8.33
2021-07-02	2021-07-01	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-500	1,608	-23.72	39.06	-19,530	62,808
2021-07-02	2021-07-01	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-1,000	2,108	-32.18	38.29	-38,290	80,715
2021-07-02	2021-07-01	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-3,500	3,108	-52.97	36.88	-129,080	114,623
2021-07-02	2021-07-01	4	PUBM	PubMatic, Inc. Class A Common Stock	C - Conversion		5,000	6,608	310.95
2021-07-02	2021-06-30	4	PUBM	PubMatic, Inc. Restricted Stock Unit	M - Exercise		-1,608	11,254	-12.50
2021-07-02	2021-06-30	4	PUBM	PubMatic, Inc. Class A Common Stock	M - Exercise		1,608	1,608
2021-06-03	2021-06-01	4	PUBM	PubMatic, Inc. Class B Common Stock	C - Conversion		-15,000	0	-100.00
2021-06-03	2021-06-01	4	PUBM	PubMatic, Inc. Class B Common Stock	M - Exercise		15,000	15,000
2021-06-03	2021-06-01	4	PUBM	PubMatic, Inc. Stock Option (Right to buy Class B Common Stock)	M - Exercise		-15,000	60,000	-20.00
2021-06-03	2021-06-01	4	PUBM	PubMatic, Inc. Class A Common Stock	S - Sale	X	-16,866	0	-100.00	30.07	-507,161
2021-06-03	2021-06-01	4	PUBM	PubMatic, Inc. Class A Common Stock	C - Conversion		15,000	16,866	803.86
2021-02-02	2021-01-29	4	PUBM	PubMatic, Inc. Stock Option (Right to buy Class A Common Stock)	A - Award		25,461	25,461
2021-02-02	2021-01-29	4	PUBM	PubMatic, Inc. Restricted Stock Unit	A - Award		12,862	12,862

Open market or private purchase of non-derivative or derivative security

Open market or private sale of non-derivative or derivative security

Grant, award, or other acquisition of securities from the company (such as an option)

Conversion of derivative

Sale or transfer of securities back to the company

Payment of exercise price or tax liability using portion of securities received from the company

Gift of securities by or to the insider

Equity swaps and similar hedging transactions

Exercise or conversion of derivative security received from the company (such as an option)

A transaction voluntarily reported on Form 4

Other (accompanied by a footnote describing the transaction)