MarketPeel
Insider Trading Intelligence
KB

Kristina Burow

BOLD
DIRECTOR · BOUNDLESS BIO, INC. · CIK 0001569248
FILING MIX · LIFETIME62%/38%
BUYS
91
SELLS
56
TOTAL VALUE
$115.91M
COMPANIES
12
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
33,543,496
AVG SELL PX
$29.72
TRADE KIND
SHOWING 147 / 147
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
8 backtested trades · 8 horizons · 7 pending
Forward-return performance of every backtestable P/S trade by Kristina Burow, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d8+25.00%+5.91%+0.02%+5.89%+2.48%
14d8+50.00%+3.38%+0.70%+2.67%+7.03%
30d8+25.00%+0.25%+0.37%-0.12%+2.17%
60d8+50.00%+7.80%+5.93%+1.86%-0.05%
90d8+50.00%+16.95%+9.24%+13.50%+5.93%
180d8(1 pending)+42.86%+13.04%+16.29%-3.25%-5.57%
1y8(2 pending)+50.00%+18.36%+31.18%-38.50%-25.36%
2y8(4 pending)+0.00%-77.48%+52.00%-129.48%-139.96%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
BOLD · 16,000 shares · as of Jun 23, 2025
0295,442590,883886,3251,181,7662025SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 91 buys / 56 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
KARD
KARDIGAN, INC.
PURCHASE
1,250,000$16.00$20.00M15,042,035Jun 22, 2026Jun 24, 2026View →
KARD
KARDIGAN, INC.
SALE
2,306,4010Jun 17, 2026Jun 22, 2026View →
KARD
KARDIGAN, INC.
PURCHASE
13,792,03513,792,035Jun 17, 2026Jun 22, 2026View →
KARD
KARDIGAN, INC.
SALE
5,148,5870Jun 17, 2026Jun 22, 2026View →
KARD
KARDIGAN, INC.
SALE
1,204,0000Jun 17, 2026Jun 22, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
4,3104,310Jun 4, 2026Jun 8, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
6,839117,710Jun 4, 2026Jun 8, 2026View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
80,00080,000May 27, 2026May 29, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASE
28,000$4.75$133.0K56,871Apr 23, 2026Apr 24, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
SALE
18,0000Apr 23, 2026Apr 24, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASE
18,000$8.36$150.5K110,871Apr 23, 2026Apr 24, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
SALE
28,0000Apr 23, 2026Apr 24, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
SALE
36,0000Apr 23, 2026Apr 24, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASE
7,800$26.78$208.9K28,871Apr 23, 2026Apr 24, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASE
36,000$9.11$328.0K92,871Apr 23, 2026Apr 24, 2026View →
SRRK
SCHOLAR ROCK HOLDING CORP
SALE
7,8000Apr 23, 2026Apr 24, 2026View →
LYEL
LYELL IMMUNOPHARMA, INC.
PURCHASE
488,090$25.61$12.50M1,426,528Mar 6, 2026Mar 9, 2026View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
1,915,700$2.61$5.00M6,046,907Oct 27, 2025Oct 29, 2025View →
PRME
PRIME MEDICINE, INC.
PURCHASE
3,030,300$3.30$10.00M6,230,300Aug 1, 2025Aug 1, 2025View →
BOLD
BOUNDLESS BIO, INC.
PURCHASEGRANT
Stock grant
16,00016,000Jun 23, 2025Jun 23, 2025View →
SRRK
SCHOLAR ROCK HOLDING CORP
SALE10b5-1
10b5-1 plan
1,000$29.24$29.2K25,471May 29, 2025May 30, 2025View →
SRRK
SCHOLAR ROCK HOLDING CORP
SALE10b5-1
10b5-1 plan
4,400$29.83$131.3K21,071May 29, 2025May 30, 2025View →
NMRA
NEUMORA THERAPEUTICS, INC.
SALE
46,4550May 28, 2025May 30, 2025View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
28,57128,571May 28, 2025May 30, 2025View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
80,00080,000May 28, 2025May 30, 2025View →
NMRA
NEUMORA THERAPEUTICS, INC.
SALE
28,5710May 28, 2025May 30, 2025View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
46,45546,455May 28, 2025May 30, 2025View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
7,63226,471May 22, 2025May 23, 2025View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
9,2069,206May 22, 2025May 23, 2025View →
NMRA
NEUMORA THERAPEUTICS, INC.
SALE
28,5710Feb 13, 2025Feb 18, 2025View →
NMRA
NEUMORA THERAPEUTICS, INC.
SALE
46,4550Feb 13, 2025Feb 18, 2025View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
46,45546,455Feb 13, 2025Feb 18, 2025View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
28,57128,571Feb 13, 2025Feb 18, 2025View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
13,50018,839Jun 27, 2024Jul 1, 2024View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
18,00018,000Jun 27, 2024Jul 1, 2024View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
20,10047,717Jun 13, 2024Jun 14, 2024View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
28,57128,571Jun 13, 2024Jun 14, 2024View →
RAPP
RAPPORT THERAPEUTICS, INC.
SALE
11,924,1380Jun 10, 2024Jun 10, 2024View →
RAPP
RAPPORT THERAPEUTICS, INC.
PURCHASE
3,728,7383,728,738Jun 10, 2024Jun 10, 2024View →
RAPP
RAPPORT THERAPEUTICS, INC.
SALE
20,000,0000Jun 10, 2024Jun 10, 2024View →
BOLD
BOUNDLESS BIO, INC.
SALE
227,9200Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
PURCHASE
1,048,4331,048,433Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
SALE
586,0800Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
PURCHASE
66,667$16.00$1.07M683,759Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
PURCHASE
787,545828,570Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
SALE
366,3010Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
PURCHASE
589,743617,092Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
SALE
164,8350Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
SALE
201,4650Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
SALE
424,9080Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
PURCHASE
133,333$16.00$2.13M1,181,766Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
SALE
454,2120Apr 2, 2024Apr 4, 2024View →
BOLD
BOUNDLESS BIO, INC.
PURCHASEGRANT
Stock grant
26,43826,438Mar 27, 2024Mar 29, 2024View →
PRME
PRIME MEDICINE, INC.
PURCHASE
3,200,000$6.25$20.00M3,200,000Feb 15, 2024Feb 20, 2024View →
SANA
SANA BIOTECHNOLOGY, INC.
PURCHASE
727,272$5.50$4.00M12,446,022Feb 8, 2024Feb 12, 2024View →
SANA
SANA BIOTECHNOLOGY, INC.
PURCHASE
363,637$5.50$2.00M10,667,387Feb 8, 2024Feb 12, 2024View →
SRRK
SCHOLAR ROCK HOLDING CORP
SALE
291,9062,345,711Dec 21, 2023Dec 26, 2023View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASE
5,3395,339Dec 21, 2023Dec 26, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
1,176,5934,131,207Dec 8, 2023Dec 12, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
703,0611,387,228Dec 8, 2023Dec 12, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
13,99727,617Dec 8, 2023Dec 12, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
3,357$11.98$40.2K4,131,207Nov 14, 2023Nov 15, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
31,653$11.75$371.9K4,127,850Nov 13, 2023Nov 15, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
11,844$11.37$134.7K4,090,766Nov 10, 2023Nov 13, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
5,431$11.75$63.8K4,096,197Nov 10, 2023Nov 13, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
31,079$10.53$327.3K4,078,922Nov 9, 2023Nov 13, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
23,124$11.79$272.6K4,047,843Nov 8, 2023Nov 13, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
69,127$10.78$745.2K4,024,719Nov 8, 2023Nov 13, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
30,192$11.50$347.2K3,955,592Nov 7, 2023Nov 7, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
43,082$11.55$497.6K3,925,400Nov 6, 2023Nov 7, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
22,420$11.38$255.1K3,882,318Nov 3, 2023Nov 7, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
34,560$13.98$483.1K3,859,898Sep 29, 2023Sep 29, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
16,841$13.06$219.9K3,800,228Sep 28, 2023Sep 29, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
25,110$13.69$343.8K3,825,338Sep 28, 2023Sep 29, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
24,504$12.31$301.6K3,783,387Sep 27, 2023Sep 27, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
34,000$11.73$398.8K3,758,883Sep 26, 2023Sep 27, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
29,967$11.65$349.1K3,724,883Sep 25, 2023Sep 25, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
30,773$10.80$332.3K3,694,916Sep 25, 2023Sep 25, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
40,000$11.14$445.6K3,664,143Sep 22, 2023Sep 25, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
SALE
6,576,4000Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
SALE
2,124,1430Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
6,895,02112,205,379Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
6,576,40011,886,758Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
1,500,000$17.00$25.50M3,624,143Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
SALE
684,1670Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
1,144,9731,144,973Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
684,167684,167Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
2,124,1432,124,143Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
SALE
6,895,0210Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
SALE
1,144,9730Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASE
13,62013,620Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
SALE
13,6200Sep 19, 2023Sep 19, 2023View →
NMRA
NEUMORA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
46,45546,455Sep 14, 2023Sep 18, 2023View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
36,00036,000Jun 21, 2023Jun 22, 2023View →
GOSS
GOSSAMER BIO, INC.
PURCHASEGRANT
Stock grant
35,00035,000Jun 8, 2023Jun 9, 2023View →
BEAM
BEAM THERAPEUTICS INC.
PURCHASEGRANT
Stock grant
16,53216,532Jun 6, 2023Jun 8, 2023View →
PRME
PRIME MEDICINE, INC.
PURCHASE
400,000$17.00$6.80M6,128,297Oct 24, 2022Oct 26, 2022View →
PRME
PRIME MEDICINE, INC.
PURCHASE
5,728,2975,728,297Oct 24, 2022Oct 26, 2022View →
PRME
PRIME MEDICINE, INC.
SALE
16,666,6670Oct 24, 2022Oct 26, 2022View →
PRME
PRIME MEDICINE, INC.
SALE
1,141,4740Oct 24, 2022Oct 26, 2022View →
PRME
PRIME MEDICINE, INC.
SALE
16,666,6640Oct 24, 2022Oct 26, 2022View →
BEAM
BEAM THERAPEUTICS INC.
PURCHASEGRANT
Stock grant
10,39110,391Sep 1, 2022Sep 2, 2022View →
GOSS
GOSSAMER BIO, INC.
PURCHASEGRANT
Stock grant
30,00030,000Jun 9, 2022Jul 15, 2022View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
28,00028,000May 26, 2022May 27, 2022View →
ERAS
ERASCA, INC.
PURCHASE
5,527,7775,527,777Jul 20, 2021Jul 20, 2021View →
ERAS
ERASCA, INC.
SALE
3,400,0000Jul 20, 2021Jul 20, 2021View →
ERAS
ERASCA, INC.
SALE
2,100,0000Jul 20, 2021Jul 20, 2021View →
ERAS
ERASCA, INC.
SALE
1,133,3330Jul 20, 2021Jul 20, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0002,921,520Jun 30, 2021Jul 2, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0002,921,519Jun 30, 2021Jul 2, 2021View →
BEAM
BEAM THERAPEUTICS INC.
PURCHASE
2,01112,067Jun 30, 2021Jul 2, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0003,121,519Jun 29, 2021Jun 29, 2021View →
BEAM
BEAM THERAPEUTICS INC.
PURCHASE
2,01110,056Jun 29, 2021Jun 29, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0003,121,520Jun 29, 2021Jun 29, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0003,321,519Jun 25, 2021Jun 29, 2021View →
BEAM
BEAM THERAPEUTICS INC.
PURCHASE
2,0118,045Jun 25, 2021Jun 29, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0003,321,520Jun 25, 2021Jun 29, 2021View →
BEAM
BEAM THERAPEUTICS INC.
PURCHASEGRANT
Stock grant
6,8776,877Jun 10, 2021Jun 14, 2021View →
GOSS
GOSSAMER BIO, INC.
PURCHASEGRANT
Stock grant
23,50023,500Jun 9, 2021Jun 10, 2021View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
7,8007,800May 27, 2021Jun 1, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0003,521,520Mar 31, 2021Apr 2, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0003,521,519Mar 31, 2021Apr 2, 2021View →
BEAM
BEAM THERAPEUTICS INC.
PURCHASE
2,0116,034Mar 31, 2021Apr 2, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0003,721,519Mar 22, 2021Mar 22, 2021View →
BEAM
BEAM THERAPEUTICS INC.
PURCHASE
2,0114,023Mar 22, 2021Mar 22, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0003,721,520Mar 22, 2021Mar 22, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0003,921,520Mar 18, 2021Mar 22, 2021View →
BEAM
BEAM THERAPEUTICS INC.
SALE
200,0003,921,519Mar 18, 2021Mar 22, 2021View →
BEAM
BEAM THERAPEUTICS INC.
PURCHASE
2,0122,012Mar 18, 2021Mar 22, 2021View →
SANA
SANA BIOTECHNOLOGY, INC.
SALE
781,2500Feb 8, 2021Feb 10, 2021View →
SANA
SANA BIOTECHNOLOGY, INC.
SALE
5,687,5000Feb 8, 2021Feb 10, 2021View →
SANA
SANA BIOTECHNOLOGY, INC.
PURCHASE
10,156,25010,301,250Feb 8, 2021Feb 10, 2021View →
SANA
SANA BIOTECHNOLOGY, INC.
SALE
3,687,5000Feb 8, 2021Feb 10, 2021View →
SANA
SANA BIOTECHNOLOGY, INC.
SALE
2,343,7500Feb 8, 2021Feb 10, 2021View →
SANA
SANA BIOTECHNOLOGY, INC.
PURCHASE
10,156,25010,303,750Feb 8, 2021Feb 10, 2021View →
SANA
SANA BIOTECHNOLOGY, INC.
SALE
9,375,0000Feb 8, 2021Feb 10, 2021View →
SANA
SANA BIOTECHNOLOGY, INC.
PURCHASE
11,718,75011,718,750Feb 8, 2021Feb 10, 2021View →
GOSS
GOSSAMER BIO, INC.
PURCHASEGRANT
Stock grant
23,50023,500Jun 17, 2020Jun 18, 2020View →
SRRK
SCHOLAR ROCK HOLDING CORP
PURCHASEGRANT
Stock grant
13,00013,000Jun 16, 2020Jun 18, 2020View →
VIR
VIR BIOTECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
28,88828,888May 21, 2020May 22, 2020View →
VIR
VIR BIOTECHNOLOGY, INC.
PURCHASEGRANT
Stock grant
25,40425,404May 21, 2020Oct 13, 2020View →
BEAM
BEAM THERAPEUTICS INC.
PURCHASE
4,121,5204,121,520Feb 10, 2020Feb 11, 2020View →
BEAM
BEAM THERAPEUTICS INC.
SALE
2,750,3360Feb 10, 2020Feb 11, 2020View →
BEAM
BEAM THERAPEUTICS INC.
PURCHASE
4,121,5194,121,519Feb 10, 2020Feb 11, 2020View →
BEAM
BEAM THERAPEUTICS INC.
SALE
33,1840Feb 10, 2020Feb 11, 2020View →
BEAM
BEAM THERAPEUTICS INC.
SALE
2,750,3350Feb 10, 2020Feb 11, 2020View →
BEAM
BEAM THERAPEUTICS INC.
SALE
1,338,0000Feb 10, 2020Feb 11, 2020View →
Other insiders · BOLD
Loading peer insiders…
About this filer
CIK 0001569248
ROLE
Director
PRIMARY
BOLD
COMPANIES
12
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001569248DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

One short email. Insider buys, congressional trades, and plain-English analysis.

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