Malone and Huang Lead a 12-Company, $60.06M Insider-Buy Week
The Aug. 10-17 screen found 16 qualifying open-market purchases totaling $60.06M across 12 US-listed companies, led by GLIBK and COE, with cluster and track-record context for each signal.
The Aug. 10-17, 2026 screen found 16 qualifying open-market code-P purchase transactions across 12 US-listed companies, totaling $60.06M. John Malone's $13.56M purchase of GLIBK and 51Talk CEO Huang Jack Jiajia's $11.80M purchase of COE led the list. Together, those two buys represented about 42% of the week's gross total.
The largest classification caveat is PRMB: the same filing batch also contained two $497.4M sales. Those sales are excluded from the purchase total. The screen counts gross purchases, not net insider activity, and it excludes option exercises, gifts, and identifiable automatic-plan trades.
Screen window: Aug. 10 through Aug. 17, 2026, Eastern Time, using trade date rather than filing timestamp. A transaction qualifies when one insider's purchases exceed $1M in the window, either in one filing or in aggregate across the week. Current quotes and market caps are the latest values in the Finviz snapshots; COE, GLIBK, and DFH show Aug. 14 last closes, while the other snapshots show Aug. 17 quotes. Sources: OpenInsider weekly screen and the SEC-linked Form 4 filings below.
The screen at a glance
| Company | Buyer and role | Trade date(s) | Shares / price | Gross buy | Sector / industry | Quote / market cap | Mark vs. entry |
|---|---|---|---|---|---|---|---|
| GLIBK | John C. Malone, director, 10% holder | Aug. 10 | 542,232 at $25.00 | $13.56M | Communication Services / Telecom Services | $26.70 / $1.07B | +6.8% |
| COE | Huang Jack Jiajia, CEO, 10% holder | Aug. 11 | 592,320 at $19.93 | $11.80M | Consumer Defensive / Education & Training Services | $19.67 / $84.19M | -1.3% |
| BORR and Aug. 13 filing | Tor Olav Troim, director | Aug. 13-14 | 1.5M at $4.02; 500,000 at $4.39 | $8.23M | Energy / Oil & Gas Drilling | $4.55 / $1.40B | +10.6% |
| AAT and Aug. 10 filing | Ernest S. Rady, executive chairman, 10% holder | Aug. 10, 13 | 193,243 at $22.49; 150,000 at $22.84 | $7.77M | Real Estate / REIT - Diversified | $22.80 / $1.40B | +0.7% |
| TXO and Aug. 7 filing | Bob R. Simpson, director, 10% holder | Aug. 7, 12 | 250,000 at $13.95; 150,000 at $14.34 | $5.64M | Energy / Oil & Gas E&P | $14.00 / $776.24M | -0.7% |
| ONON and co-CEO filing | Olivier Bernhard, executive officer; Caspar Felix Coppetti, executive officer and co-CEO | Aug. 14 | 65,000 each at $30.67 | $3.99M | Consumer Cyclical / Footwear & Accessories | $32.81 / $10.81B | +7.0% |
| APTV | Kevin P. Clark, chair and CEO | Aug. 10 | 51,190 at $48.89 | $2.50M | Consumer Cyclical / Auto Parts | $49.48 / $10.27B | +1.2% |
| PRMB | Eric J. Foss, executive chair and CEO | Aug. 10 | 84,000 at $23.80 | $2.00M | Consumer Defensive / Beverages - Non-Alcoholic | $24.46 / $8.86B | +2.8% |
| DFH | Richard Beckwitt, director | Aug. 11 | 90,000 at $14.05 | $1.26M | Consumer Cyclical / Residential Construction | $15.60 / $1.42B | +11.0% |
| DINO | Franklin Myers, CEO | Aug. 11 | 15,000 at $85.30 | $1.28M | Energy / Oil & Gas Refining & Marketing | $94.45 / $16.79B | +10.7% |
| AME | Nick L. Stanage, director | Aug. 11 | 4,000 at $255.85 | $1.02M | Industrials / Specialty Industrial Machinery | $255.00 / $58.46B | -0.3% |
| PFE | Albert Bourla, chairman and CEO | Aug. 12 | 38,000 at $26.34 | $1.00M | Healthcare / Drug Manufacturers - General | $26.80 / $152.75B | +1.7% |
The mark column is a simple price comparison between the latest quote snapshot and the reported execution price. For two-day or two-price purchases, it uses the gross-dollar-weighted entry price. It is an unrealized mark, not a return forecast, and excludes dividends, fees, and currency effects.
1. GLIBK: Malone makes the largest single buy
John C. Malone, listed as a director and 10% holder, bought 542,232 GLIBK shares at $25.00, a gross purchase of $13,557,480 on Aug. 10. The SEC Form 4 identifies the transaction as code P. Finviz classifies Liberty Capital Corp. in Communication Services and Telecom Services, with a $1.07B market cap in the snapshot.
The latest $26.70 quote puts the position about 6.8% above entry. Malone's visible prior purchase history is mixed to negative on a simple current-price mark: earlier buys shown on the OpenInsider GLIBK history include $35.00 and $43.29 executions that are above the latest quote. Those are marks, not six- or twelve-month event-study returns, but they do not establish a reliable appreciation pattern. The current trade is therefore a very large new observation, not a validated timing signal.
2. COE: Huang continues a concentrated buying campaign
Huang Jack Jiajia, CEO and 10% holder, bought 592,320 COE shares at $19.93 on Aug. 11 for $11,804,395. The SEC Form 4 reports the code-P purchase. Finviz identifies 51 Talk Online Education Group ADR as Consumer Defensive and Education & Training Services, with an $84.19M market cap.
COE is the clearest repeat-buyer campaign in this week's list. The OpenInsider history shows Huang buying $13.76M on July 31 and $7.73M on Aug. 6, among a longer sequence of 2026 purchases. The newest mark is -1.3% at $19.67, and the older April and May executions shown in the same history were made at substantially higher prices. The track record is therefore best described as repeated conviction with no completed six- or twelve-month test in this current campaign, rather than as evidence that prior buys reliably preceded appreciation.
3. BORR: a two-day repeat buy after weak operating news
Tor Olav Troim, a director, bought 1.5M BORR shares at $4.02 on Aug. 13 for $6,036,750, then another 500,000 at $4.39 on Aug. 14 for $2,193,400. The two SEC Form 4 filings and Aug. 14 filing total $8,230,150 across two trade dates. The $4.55 quote is about 10.6% above the weighted entry price.
This is repeat buying by one insider, not a multi-insider cluster. Troim's prior June purchase in the OpenInsider BORR history was at $4.70, above the latest quote, so the visible prior mark is not a clean positive read. The Finviz quote snapshot also carried a secondary news item about a Q2 update, Odin preparation delays, refinancing losses, and stronger Q3 guidance; because that context is from a secondary feed rather than an issuer-hosted release verified here, it should be treated as background, not as an explanation for the purchase. BORR quote and news snapshot.
4. AAT: Rady aggregates nearly $7.8M in two buys
Ernest S. Rady, executive chairman and 10% holder, bought 193,243 AAT shares at $22.49 on Aug. 10 for $4,345,305, followed by 150,000 at $22.84 on Aug. 13 for $3,425,500. The Aug. 10 Form 4 and Aug. 13 Form 4 show code-P purchases totaling $7,770,805.
The $22.80 quote is about 0.7% above the weighted entry. Rady also bought $816,772 on Aug. 5, just below the single-transaction threshold, and the OpenInsider AAT history shows earlier purchases at prices above the current quote. That makes the pattern a meaningful accumulation signal, but the available prior marks do not yet show a consistent appreciation lead. Finviz classifies American Assets Trust as a $1.40B diversified REIT in Real Estate.
5. TXO: Simpson buys on two dates
Bob R. Simpson, a director and 10% holder, bought 250,000 TXO shares at $13.95 on Aug. 7 for $3,487,630, then 150,000 at $14.34 on Aug. 12 for $2,150,545. The two SEC Form 4 records and follow-up filing total $5,638,175.
At $14.00, the latest quote is about 0.7% below the weighted entry. Simpson's prior June 22 purchase at $12.61 is marked about 11% higher today, while the May purchase at $13.68 is only modestly above entry. The OpenInsider TXO history therefore offers a small, mixed-to-positive set of prior marks, not a statistically meaningful six- or twelve-month track record. Finviz classifies TXO Partners as a $776.24M Energy / Oil & Gas E&P company.
6. ONON: the week's clearest executive cluster
On Aug. 14, executive officer Olivier Bernhard bought 65,000 ONON shares at $30.67 for $1,993,791, and executive officer and co-CEO Caspar Felix Coppetti bought the same number at the same price for another $1,993,791. The Bernhard Form 4 and Coppetti Form 4 make this a two-insider cluster totaling $3,987,582.
The $32.81 quote is 7.0% above entry. Both insiders also bought 60,000 shares at $36.64 on May 14, according to the OpenInsider ONON history; that earlier cluster is currently about 10% underwater. The track record is mixed: the same executives are repeat buyers, but the prior purchase has not yet preceded appreciation. Finviz classifies On Holding as a $10.81B Consumer Cyclical / Footwear & Accessories company.
7. APTV: Clark clears the screen; Mahoney does not
Aptiv chair and CEO Kevin P. Clark bought 51,190 APTV shares at $48.89 on Aug. 10 for $2,502,684. The SEC Form 4 identifies the code-P purchase. The latest $49.48 quote is about 1.2% above entry. Finviz classifies Aptiv as a $10.27B Consumer Cyclical / Auto Parts company.
There is no established prior-purchase track record for Clark in the visible OpenInsider APTV history that would support a six- or twelve-month predictive conclusion. A same-week purchase by director Sean O. Mahoney was only $552,683, so it does not qualify by itself and is not added to Clark's total.
8. PRMB: a clean CEO buy next to a very large sale
Eric J. Foss, executive chair and CEO, bought 84,000 PRMB shares at $23.80 on Aug. 10 for $1,998,973, according to the SEC Form 4. The $24.46 quote is about 2.8% above entry. Finviz classifies Primo Brands as an $8.86B Consumer Defensive / Beverages - Non-Alcoholic company.
Foss's prior November 2025 purchase of about $1.99M at $15.55 is up roughly 57% at the latest quote, based on the OpenInsider PRMB history. That is the strongest older mark among the repeat buyers in this edition, although it is one observation and not proof of causality.
The same filing batch contains two code-S sales by ORCP III and Tony Lee, each reported at about $497.4M on Aug. 7. Those are sales, not purchases, and are excluded from the $60.06M total. The two sale records should not be read as evidence that the CEO's purchase was a net insider signal for the whole ownership group.
9. DINO: CEO buying with no usable prior-buy sample
HF Sinclair CEO Franklin Myers bought 15,000 DINO shares at $85.30 on Aug. 11 for $1,279,500. The SEC Form 4 identifies a code-P purchase. At $94.45, the latest quote is about 10.7% above entry. Finviz classifies HF Sinclair as a $16.79B Energy / Oil & Gas Refining & Marketing company.
The visible OpenInsider DINO history does not show a prior code-P purchase by Myers that would support a six- or twelve-month track-record judgment. The signal is large relative to the threshold and comes from the CEO, but its predictive history is unknown.
10. DFH: a new director position
Richard Beckwitt bought 90,000 DFH shares at $14.05 on Aug. 11 for $1,264,740, according to the SEC Form 4. The latest $15.60 quote is about 11.0% above entry. Finviz classifies Dream Finders Homes as a $1.42B Consumer Cyclical / Residential Construction company.
The filing shows the 90,000 shares as a new direct position, and the OpenInsider DFH history does not provide a prior Beckwitt purchase sample. There is consequently no historical appreciation rate to report; the current gain is an early mark only.
11. AME: just over the line, with an option-linked sale nearby
Ametek director Nick L. Stanage bought 4,000 AME shares at $255.85 on Aug. 11 for $1,023,400. The SEC Form 4 reports code P. At $255.00, the position is about 0.3% below entry. Finviz classifies Ametek as a $58.46B Industrials / Specialty Industrial Machinery company.
The OpenInsider AME history does not show a prior Stanage code-P purchase with enough history to assess six- or twelve-month predictive value. A separate Aug. 7 row for David Hermance was a $1.68M sale plus option exercise, not a purchase, and is excluded.
12. PFE: Bourla buys at the threshold
Pfizer chairman and CEO Albert Bourla bought 38,000 PFE shares at $26.34 on Aug. 12 for $1,000,920, just above the strict $1M cutoff. The SEC Form 4 identifies the purchase as code P. The latest $26.80 quote is about 1.7% above entry. Finviz classifies Pfizer as a $152.75B Healthcare / Drug Manufacturers - General company.
The visible OpenInsider PFE history does not provide a prior Bourla purchase sample that would support a historical hit rate. A relevant company development did occur around the trade: Pfizer and Valneva said on Aug. 14 that the European Medicines Agency had validated the marketing authorization application for their Lyme disease vaccine candidate. The Pfizer press release is the primary source. The announcement is context, not proof that Bourla's Aug. 12 purchase anticipated it.
Exclusions and classification notes
- PRMB sales: The two roughly $497.4M code-S sales on Aug. 7 are excluded from the purchase total. A sale can dominate a Form 4 screen without changing the fact that the qualifying event here is Foss's $1.999M purchase.
- BORR sub-threshold companion buy: Director Jeffrey Currie's Aug. 13 purchase was about $501,638, so it is not a standalone qualifier. Troim's two purchases are counted because his own weekly total exceeded $1M.
- APTV sub-threshold companion buy: Director Sean O. Mahoney's Aug. 11 purchase was about $552,683, below the threshold.
- PFE near miss: Directors Ronald Blaylock and Mortimer Buckley each bought less than $1M on Aug. 5. Those trades are outside this window and below the threshold even before the date test.
- AME option-linked sale: David Hermance's Aug. 7 row is a sale plus option exercise, not an open-market purchase.
- No financing or automatic-plan rows were added: The qualifying rows above are code-P purchase records. The screen does not treat a code-P label alone as proof that a transaction was discretionary if a filing's footnotes or issuer disclosures indicate a financing allocation; no such qualifying row was retained in this pass.
Bottom line
This was a much larger week than the recent screens, but the headline total is concentrated. GLIBK and COE supplied about $25.36M, while BORR, AAT, and TXO added another $21.64M. The strongest structural signal is ONON's two-executive same-price cluster; the strongest repeat-buyer track-record mark is Foss's prior PRMB purchase, though it is still one observation. COE, BORR, AAT, and TXO are better viewed as ongoing accumulation campaigns than as fresh, one-off signals.
The current marks are mostly positive because the measurement window is only days long. That is too short to test the channel's core question: whether these insiders' purchases preceded six- or twelve-month appreciation. For most names, the correct conclusion today is that the filing is worth due diligence and the historical signal remains unproven.
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