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Data as of 2026-09-29
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Brian Mast: stock trades filed in Congress

Every stock trade Brian Mast has filed, when each one became public, how long the filing took, and how the buys did against the S&P 500 once anyone could have acted on them.

Key Facts

  • Brian Mast is a Republican member of the US House of Representatives for FL.
  • Brian Mast filed 24 stock trades between 2020-12-02 (2 December 2020) and 2022-10-06 (6 October 2022): 9 buys and 13 sells.
  • The disclosed dollar ranges add up to roughly $669K, counting each range at its midpoint.
  • The median trade was filed 46 days after it happened, and 54% of trades were filed after the 45 day deadline.
  • Across 4 scored buys, Brian Mast averaged -37.1% against the S&P 500 (SPY) over the 90 days after disclosure, with 25% of them ahead of the index. That result is too few trades to draw a conclusion.
  • Data as of 2026-09-23 (23 September 2026).
Trades filed 24 9 buys, 13 sells
Est. volume $669K range midpoints
Median days to file 46
Filed late 54% after 45 days
Avg vs S&P, 90d -37.1% 4 scored buys
Beat the S&P 25% 90 days after entry

Would copying Brian Mast have paid?

prices as of 2026-09-28

The result. Across 4 scored buys, Brian Mast averaged -37.1% against the S&P 500 (SPY) over the 90 days after disclosure, with 25% of them ahead of the index. That result is too few trades to draw a conclusion.

Average return of Brian Mast's disclosed buys against the S&P 500 at 30, 90 and 180 days.
Days after entryScored buysAvg vs S&PBeat S&PEntry monthst statisticReading
30 days 4 -19.8% 0% 4 n/a too few trades to draw a conclusion
90 days 4 -37.1% 25% 4 n/a too few trades to draw a conclusion
180 days 4 -37.1% 0% 4 n/a too few trades to draw a conclusion

Each buy is entered on the first trading day after it was filed. One observation counts per stock and entry day. A t statistic near 0 means the average is indistinguishable from luck; above about 2 or below about -2 it is unlikely to be chance.

A return curve needs at least 10 scored buys. Brian Mast does not have enough yet.

Most traded stocks

  1. TLRY5 trades, $156K
  2. AMTX4 trades, $148K
  3. UGRO3 trades, $73.0K
  4. IPWR2 trades, $65.0K
  5. ESGC2 trades, $40.5K
  6. SPCE2 trades, $40.5K
  7. BEEM1 trade, $32.5K
  8. IWM1 trade, $32.5K
  9. ZUO1 trade, $32.5K
  10. APHA1 trade, $8.0K

Every filed trade

as of 2026-09-23
24 trades.
Stock trades filed by Brian Mast, newest first. Click a heading to sort.
FiledStockTypeSizeDays to file90 day vs S&P
6 Oct 2022 TLRY receive 1K–15K 520 n/a
6 Oct 2022 APHA exchange 1K–15K 520 n/a
15 Aug 2022 UGRO buy 1K–15K 540 n/a
15 Aug 2022 ESGC sell 1K–15K 372 n/a
15 Aug 2022 TLRY sell 15K–50K 549 n/a
15 Aug 2022 ESGC buy 15K–50K 546 n/a
15 Aug 2022 UGRO buy 15K–50K 542 n/a
15 Aug 2022 TLRY sell 50K–100K 548 n/a
15 Aug 2022 TLRY buy 15K–50K 540 +6.5%
15 Aug 2022 IPWR sell 15K–50K 542 n/a
10 May 2022 UGRO sell 15K–50K 21 n/a
10 May 2022 IWM sell 15K–50K 21 n/a
10 May 2022 SPCE sell 1K–15K 21 n/a
10 May 2022 TLRY sell 1K–15K 21 n/a
10 May 2022 SDC sell 1K–15K 21 n/a
24 Aug 2021 SPCE buy 15K–50K 35 -40.5%
15 May 2021 AMTX sell 50K–100K 32 n/a
15 May 2021 AMTX sell 15K–50K 32 n/a
20 Apr 2021 AMTX buy 1K–15K 46 -50.8%
20 Apr 2021 AMTX buy 15K–50K 46 -50.8%
2 Feb 2021 ZUO sell 15K–50K 52 n/a
2 Feb 2021 IPWR buy 15K–50K 39 -63.7%
2 Dec 2020 BEEM sell 15K–50K 26 n/a
2 Dec 2020 Tilray Inc -Old buy 15K–50K 25 n/a

Size is the range Congress reports, not an exact amount. A stock with no ticker in the source is not scored. Sorting reorders the rows shown.

Frequently asked questions

How many stock trades has Brian Mast filed?

Brian Mast filed 24 stock trades between 2020-12-02 (2 December 2020) and 2022-10-06 (6 October 2022): 9 buys and 13 sells.

Did Brian Mast's trades beat the market?

Across 4 scored buys, Brian Mast averaged -37.1% against the S&P 500 (SPY) over the 90 days after disclosure, with 25% of them ahead of the index. That result is too few trades to draw a conclusion. Returns are measured from the first trading day after each filing, the earliest a follower could act.

How long does Brian Mast take to file trades?

The median trade was filed 46 days after it happened, and 54% of trades were filed after the 45 day deadline. The STOCK Act gives members 45 days to report a trade, so followers see it after the price has often moved.

Can I copy Brian Mast's trades?

Only after the filing appears, which means buying later and at a different price than the member paid. This site scores each buy from the day after it was filed. It is information, not investment advice.

Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Original filings: US House Clerk and Senate Office of Public Records. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-23 (23 September 2026). Latest filing by Brian Mast: 2022-10-06 (6 October 2022). About these sources.

Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.