# Sean McMaster's stock trades: 29 disclosed since 2025

Executive branch · OGE Form 278-T · Updated 9 Sep 2026 · Source: U.S. Office of Government Ethics

Canonical: https://trackedmoney.com/executive/sean-mcmaster/

## Short answer

As of 28 Sep 2026, Sean McMaster has disclosed 29 securities transactions on OGE Form 278-T, dated Aug 2025 to May 2026: 18 purchases and 11 sales across 16 ticker symbols. The most recent report with readable rows, posted 9 Sep 2026, listed 4 transactions. The most-traded stock is Grab Holdings Ltd (GRAB), with 4 trades.

## Key facts

- **29 transactions disclosed.** Sean McMaster reported 29 transactions on 7 OGE 278-T reports posted between 6 Jan 2026 and 9 Sep 2026.
- **16 ticker symbols.** The trades span 16 ticker symbols; 7 rows (bonds and assets without a matched ticker) are listed by name only.
- **62% purchases.** 18 of the transactions are purchases and 11 are sales.
- **106 days median delay to public.** Half of McMaster's trades became public within 106 days of the trade date, counting to the day OGE posted the report.

## What changed in the latest report

- **9 Sep 2026: Report: 4 transactions.** 0 purchases and 4 sales dated 11 Aug 2025 to 22 Aug 2025; none matched to a ticker. No ticker appears for the first time.
- **15 Jul 2026: Report: 5 transactions.** 5 purchases and 0 sales dated 13 May 2026 to 14 May 2026, across 5 tickers. 5 tickers appear for the first time, including AKAM, FLNC, FPS, GLW, QCOM.
- **1 Apr 2026: Report: 1 transaction.** 1 purchases and 0 sales dated 21 Jan 2026 to 21 Jan 2026, across 1 ticker. No ticker appears for the first time.
- **13 Mar 2026: Report: 4 transactions.** 4 purchases and 0 sales dated 18 Dec 2025 to 13 Jan 2026, across 3 tickers. 2 tickers appear for the first time, including HOOD, OSS.
- **27 Jan 2026: 2 reports: 8 transactions.** 5 purchases and 3 sales dated 7 Oct 2025 to 10 Dec 2025, across 5 tickers. 5 tickers appear for the first time, including AMCR, AMKR, GRAB, MSTR, TSLA.

## When the trades happened

Trades per month, by transaction date.

| Month | Trades |
|---|---:|
| Aug 2025 | 11 |
| Sep 2025 | 0 |
| Oct 2025 | 6 |
| Nov 2025 | 1 |
| Dec 2025 | 2 |
| Jan 2026 | 4 |
| Feb 2026 | 0 |
| Mar 2026 | 0 |
| Apr 2026 | 0 |
| May 2026 | 5 |

## Buying or selling?

18 purchases (62%) and 11 sales (38%).

## What stocks does McMaster own and trade most?

| Ticker | Company | Buys | Sells | Total |
|---|---|---:|---:|---:|
| GRAB | Grab Holdings Ltd | 4 | 0 | 4 |
| AMCR | Amcor plc | 1 | 1 | 2 |
| AMKR | Amkor Technology, Inc. | 2 | 0 | 2 |
| BMNR | Bitmine Immersion Technologies, Inc. | 2 | 0 | 2 |
| AKAM | Akamai Technologies Inc | 1 | 0 | 1 |
| ARGT | Global X MSCI Argentina ETF | 0 | 1 | 1 |
| COIN | Coinbase Global, Inc. | 0 | 1 | 1 |
| FLNC | Fluence Energy, Inc. | 1 | 0 | 1 |
| FPS | Forgent Power Solutions, Inc. | 1 | 0 | 1 |
| GLW | Corning Inc /Ny | 1 | 0 | 1 |

## Trades against the share price

- Grab Holdings Ltd (GRAB): 4 buys · 0 sells · −34.9% since 1 Aug 2025
- Amcor plc (AMCR): 1 buys · 1 sells · −8.0% since 1 Aug 2025
- Amkor Technology, Inc. (AMKR): 2 buys · 0 sells · +143.1% since 1 Aug 2025
- Bitmine Immersion Technologies, Inc. (BMNR): 2 buys · 0 sells · −13.4% since 1 Aug 2025
- Akamai Technologies Inc (AKAM): 1 buys · 0 sells · +50.6% since 1 Aug 2025
- Global X MSCI Argentina ETF (ARGT): 0 buys · 1 sells · +6.7% since 1 Aug 2025
- Coinbase Global, Inc. (COIN): 0 buys · 1 sells · −38.2% since 1 Aug 2025
- Fluence Energy, Inc. (FLNC): 1 buys · 0 sells · −0.4% since 1 Aug 2025
- Forgent Power Solutions, Inc. (FPS): 1 buys · 0 sells · +14.3% since 6 Feb 2026
- Corning Inc /Ny (GLW): 1 buys · 0 sells · +144.2% since 1 Aug 2025

## What if you had copied McMaster's trades?

- Past year (25 Sep 2025 to 25 Sep 2026), entered on each trade date: −10.1%; the S&P 500 over the same days: +18.5%.
- Since Aug 2025 (7 Aug 2025 to 25 Sep 2026), entered on each trade date: +7.9%; the S&P 500 over the same days: +23.7%.

## How McMaster compares

| Official | Trades | Stocks | Buy share | Days to file (median) |
|---|---:|---:|---:|---:|
| Sean McMaster | 29 | 16 | 62% | 106 |
| Executive branch, median official | 53 | 20 | 38% | 63 |
| Congress, median member | 126 | 37 | 50% | 27 |
| Most active in Congress, past 12 months: Gilbert Cisneros | 2,699 | 710 | 57% | 27 |

The executive median covers the 22 executive officials shown in the Tracked Money app; the Congress median covers 127 House and Senate members shown in the app.
Gilbert Cisneros (House) reported 1,153 trades dated 28 Sep 2025 to 28 Sep 2026, the most of any member in that window.

## Every disclosed trade

The 25 most recent of 29. All rows: [trades.csv](./trades.csv) · [trades.json](./trades.json)

| Traded | Filed | Asset | Type | Amount |
|---|---|---|---|---|
| 2026-05-14 | 2026-07-15 | **FPS** Forgent Power Solution | Purchase | $15,001 - $50,000 |
| 2026-05-13 | 2026-07-15 | **AKAM** Akamai Technologies, Inc. | Purchase | $15,001 - $50,000 |
| 2026-05-13 | 2026-07-15 | **FLNC** Fluence Energy Inc. Class A Common Stock | Purchase | $15,001 - $50,000 |
| 2026-05-13 | 2026-07-15 | **GLW** Corning, Inc. | Purchase | $50,001 - $100,000 |
| 2026-05-13 | 2026-07-15 | **QCOM** QUALCOMM, Inc. | Purchase | $15,001 - $50,000 |
| 2026-01-21 | 2026-04-01 | **GRAB** Grab Holdings Limited Class A Ordinary Shares | Purchase | $1,001 - $15,000 |
| 2026-01-13 | 2026-03-13 | **OSS** One Stop Systems Inc. Common Stock | Purchase | $15,001 - $50,000 |
| 2026-01-09 | 2026-03-13 | **GRAB** Grab Holdings Limited Class A Ordinary Shares | Purchase | $15,001 - $50,000 |
| 2026-01-09 | 2026-03-13 | **HOOD** Robinhood Markets Inc. Class A Common Stock | Purchase | $1,001 - $15,000 |
| 2025-12-18 | 2026-03-13 | **GRAB** Grab Holdings Limited Class A Ordinary Shares | Purchase | $15,001 - $50,000 |
| 2025-12-10 | 2026-01-27 | **TSLA** Tesla, Inc. | Sale | $250,001 - $500,000 |
| 2025-11-03 | 2026-01-27 | **GRAB** Grab Holdings Limited Class A Ordinary Shares | Purchase | $15,001 - $50,000 |
| 2025-10-14 | 2026-01-27 | **AMKR** Amkor Technology, Inc. | Purchase | $1,001 - $15,000 |
| 2025-10-13 | 2026-01-27 | **AMCR** Amcor plc | Sale | $15,001 - $50,000 |
| 2025-10-13 | 2026-01-27 | **AMKR** Amkor Technology, Inc. | Purchase | $15,001 - $50,000 |
| 2025-10-09 | 2026-01-27 | **AMCR** Amcor plc | Purchase | $15,001 - $50,000 |
| 2025-10-09 | 2026-01-27 | **MSTR** MicroStrategy, Inc. | Sale | $50,001 - $100,000 |
| 2025-10-07 | 2026-01-27 | ETHZilla Corp | Purchase | $1,001 - $15,000 |
| 2025-08-22 | 2026-09-09 | ASGN, Inc. | Sale | $1,001 - $15,000 |
| 2025-08-22 | 2026-09-09 | ASGN, Inc. | Sale | $1,001 - $15,000 |
| 2025-08-22 | 2026-09-09 | ASGN, Inc. | Sale | $15,001 - $50,000 |
| 2025-08-13 | 2026-01-06 | **COIN** Coinbase Global Inc. Class A Common Stock | Sale | $50,001 - $100,000 |
| 2025-08-13 | 2026-01-06 | 180 Life Sciences Corp. Common Stock | Purchase | $50,001 - $100,000 |
| 2025-08-11 | 2026-09-09 | ASGN, Inc. | Sale | $1,001 - $15,000 |
| 2025-08-08 | 2026-01-06 | **BMNR** bitmine immersion technology | Purchase | $1,001 - $15,000 |

## Questions people ask

### Does McMaster have to disclose stock trades?

Yes. Senior executive-branch officials, including the President, must report securities transactions over $1,000 on OGE Form 278-T, generally within 45 days of the trade. The Office of Government Ethics publishes the reports.

### How many stock trades has McMaster disclosed?

Tracked Money has read 29 transactions from 7 OGE 278-T reports posted between 6 Jan 2026 and 9 Sep 2026, with trade dates from 7 Aug 2025 to 14 May 2026.

### What stocks does McMaster own?

The 278-T lists transactions, not holdings. The stocks traded most often in these reports are Grab Holdings Ltd (GRAB), Amcor plc (AMCR), Amkor Technology, Inc. (AMKR), Bitmine Immersion Technologies, Inc. (BMNR), Akamai Technologies Inc (AKAM). Holdings appear on the annual OGE Form 278e financial disclosure, which this page does not cover.

### How quickly do McMaster's trades become public?

The median trade on this page became public 106 days after it happened, measured from the trade date to the day OGE posted the report. Amounts are disclosed as ranges, not exact figures.

## Method and sources

- Source: OGE Form 278-T reports published by the U.S. Office of Government Ethics (https://extapps2.oge.gov/201/Presiden.nsf).
- Reports read: 7 (every report OGE has posted as a PDF for this official at the last check); 7 yielded transaction rows.
- Tickers matched: 22 of 29 rows. Company names are matched to tickers by Tracked Money; unmatched rows are kept by name.
- Last checked: 28 Sep 2026.
- Amounts are the disclosed ranges. Trade dates are as reported; the filing date is the day OGE posted the report.

Reports:

- 9 Sep 2026: 4 rows — https://extapps2.oge.gov/201/Presiden.nsf/PAS+Index/87D4C3BB9C104B3E85258E6D002DDD05/$FILE/Sean-McMaster-06.11.2026-278T(1).pdf
- 15 Jul 2026: 5 rows — https://extapps2.oge.gov/201/Presiden.nsf/PAS+Index/ADE89624CD8D7F1D85258E35002DD6B1/$FILE/Sean-McMaster-06.11.2026-278T.pdf
- 1 Apr 2026: 1 rows — https://extapps2.oge.gov/201/Presiden.nsf/PAS+Index/6669428412F0329885258DCC002DC6FF/$FILE/Sean-McMaster-02.27.2026-278T.pdf
- 13 Mar 2026: 4 rows — https://extapps2.oge.gov/201/Presiden.nsf/PAS+Index/E3D897DB72CEF27F85258DB9002EEB15/$FILE/Sean-McMaster-01.20.2026-278T.pdf
- 27 Jan 2026: 7 rows — https://extapps2.oge.gov/201/Presiden.nsf/PAS+Index/11B539874B68444985258D8C00346658/$FILE/Sean-McMaster-12.01.2025-278T.pdf
- 27 Jan 2026: 1 rows — https://extapps2.oge.gov/201/Presiden.nsf/PAS+Index/14687F0C20F84C2385258D8C00346652/$FILE/Sean-McMaster-12.11.2025-278T.pdf
- 6 Jan 2026: 7 rows — https://extapps2.oge.gov/201/Presiden.nsf/PAS+Index/2B716301C2D9B9D585258D7700345AA8/$FILE/Sean-McMaster-09.29.2025-278T.pdf

Public filings. Not investment advice.