Mock James M

Chief Financial Officer, Please See Remarks · SEC CIK 1736359
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Buy track record

How this insider's open-market purchases have performed
This insider has no open-market purchases in the records we parsed, so there's no buy track record to score. Their full filing history is below.
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Open-market buys
$0
0 trades
Open-market sells
$2.9M
21 trades
Net flow
−$2.9M
Net selling
Total filings
87
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed 1w ago ΔOwn +20%
+$0
11,798 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed 1w ago ΔOwn −8.0%
−$294.3K
5,705 sh @ $52
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed 1w ago ΔOwn +4.2%
+$0
2,475 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed 1w ago ΔOwn −2.0%
−$56.5K
1,197 sh @ $47
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed 2w ago ΔOwn +0.6%
+$0
328 sh
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MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed 2w ago ΔOwn −0.3%
−$7.6K
159 sh @ $48
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed 2w ago ΔOwn +1.3%
+$0
773 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed 2w ago ΔOwn −0.6%
−$17.6K
374 sh @ $47
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed Apr 6, 2026 ΔOwn +2.5%
+$0
1,453 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Apr 6, 2026 ΔOwn −1.2%
−$35.2K
703 sh @ $50
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed Mar 6, 2026 ΔOwn +23%
+$0
11,797 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Mar 6, 2026 ΔOwn −9.1%
−$329.7K
5,704 sh @ $58
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed Mar 3, 2026 ΔOwn +22%
+$0
9,901 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Mar 3, 2026 ΔOwn −0.4%
−$8.3K
160 sh @ $52
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Mar 3, 2026 ΔOwn −0.8%
−$19.4K
375 sh @ $52
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Mar 3, 2026 ΔOwn −8.6%
−$247.6K
4,788 sh @ $52
MRNA
Grant/award Mock James M · Chief Financial Officer · Grant/award · filed Feb 13, 2026 ΔOwn +6.0%
+$0
2,630 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Feb 13, 2026 ΔOwn −2.7%
−$53.7K
1,278 sh @ $42
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed Jan 6, 2026 ΔOwn +3.4%
+$0
1,452 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Jan 6, 2026 ΔOwn −1.7%
−$24.1K
780 sh @ $31
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed Dec 8, 2025 ΔOwn +251%
+$0
47,190 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Dec 8, 2025 ΔOwn −35%
−$581.6K
22,817 sh @ $25
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed Dec 1, 2025 ΔOwn +1.8%
+$0
329 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Dec 1, 2025 ΔOwn −0.8%
−$4K
160 sh @ $25
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed Dec 1, 2025 ΔOwn +4.2%
+$0
773 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Dec 1, 2025 ΔOwn −2.0%
−$9.3K
374 sh @ $25
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed Oct 6, 2025 ΔOwn +8.3%
+$0
1,453 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Oct 6, 2025 ΔOwn −3.7%
−$19.9K
703 sh @ $28
MRNA
Option exercise Mock James M · Chief Financial Officer · Option exercise · filed Aug 29, 2025 ΔOwn +1.9%
+$0
329 sh
MRNA
Tax withholding Mock James M · Chief Financial Officer · Tax withholding · filed Aug 29, 2025 ΔOwn −0.9%
−$4K
160 sh @ $25

Frequently asked questions

How is Mock James M's win rate calculated?

We take every open-market purchase (SEC code P) we can match to a stock price, then compare the split- and dividend-adjusted price on the purchase date to the most recent close. The win rate is the share of those buys currently trading above the purchase price. Sales and share grants are not scored.

Why are some buys not included in the score?

A purchase is excluded if we can't price it — for example if the ticker is missing from the filing, the company has been delisted, or the security isn't a common stock we can match to market data. Excluded counts are shown next to the scored total.

What do the 1M / 3M / 6M / 12M columns mean?

They show each purchase's return after a fixed holding period — one, three, six, and twelve months from the buy date — using split- and dividend-adjusted prices. This separates good entry timing from simply holding a long-running winner. A dash means that horizon hasn't elapsed yet for that trade, or the stock couldn't be priced at that date.

Does a high win rate mean I should copy this insider?

No. Past performance does not predict future results, sample sizes are often small, and an insider's edge in their own company doesn't transfer to yours. This is context, not a recommendation. InsiderSource is not investment advice.

Where does this data come from?

Trades come from Mock James M's SEC Form 4 filings on EDGAR. Prices come from public market data and are split/dividend-adjusted. Always verify against the original filings before acting.